A strong jump box for a diesel should state a diesel engine limit that meets your vehicle’s needs, with enough starting power and useful safety features for roadside use. The NOCO Boost GBX155 leads this comparison with a specific rating for diesel engines up to 8.0L and 4,250 amps. Other listed options claim support for diesels up to 12.0L or 14.0L, while some provide no diesel displacement limit at all.
That distinction matters: peak amps alone do not confirm compatibility with a particular engine. This roundup compares all 10 products using their stated diesel fit, electrical system, capacity, size and included features.
Check your engine’s displacement and system voltage before choosing, and treat any broad all-diesel claim cautiously when no exact engine limit is supplied.
The NOCO Boost GBX155 is the strongest all-around match because its listed rating specifically covers diesel engines up to 8.0L and it delivers 4,250 amps. That makes its compatibility clearer than products with high peak-amp figures but no stated diesel displacement limit. For larger stated engine ratings, YaberAuto 8000A Air Compressor lists support up to 14.0L diesel, while NACKEO N40 specifies up to 12.0L.
Match the rating to your engine and remember these are manufacturer-provided claims, not comparative test results.
Our Top Picks
Best OverallIts explicit 8.0L diesel rating and 4,250-amp output make compatibility clearer than most contenders; USB-C Power Delivery supports faster recharging.
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Largest Diesel RatingThe listed diesel limit reaches 14.0L, with 8,000 amps and a 160PSI compressor; verify its stated 12V vehicle compatibility.
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Integrated CompressorIt specifies up to 12.0L diesel and 8,000 amps, plus a 160PSI compressor, making it a capable multi-function choice.
View on Amazon- Compact Diesel Option S ZEVZO ET03
- 12V/24V Systems FlyAuto 8000A
Compare Diesel Jump Starter Ratings and Features
| # | Product | Battery Capacity | Voltage | Dimensions | Weight | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. NOCO Boost GBX155Best Overall | 6750 milliamp hours | 12 V | 8.18"D x 4.84"W x 13.51"H | 7 lb | View on Amazon |
| 2 | 2. YaberAuto AP05Largest Diesel Rating | 27000 milliamp hours | 12 V | 2.64"D x 2.04"W x 4.28"H | 0.5 kg | View on Amazon |
| 3 | 3. NACKEO N40Integrated Compressor | 21800 milliamp hours | 12 V | 2.24"D x 4.45"W x 8.39"H | 2.2 lb | View on Amazon |
| 4 | 4. S ZEVZO ET03Compact Diesel Option | 20000 milliamp hours | 12 V | 1.5"D x 3.4"W x 7.5"H | 1.4 lb | View on Amazon |
| 5 | 5. NOCO Boost GB70Mid-size diesel vehicle owners | 5000 milliamp hours | 12 V | 7.4"D x 3.7"W x 12.6"H | 2 kg | View on Amazon |
| 6 | 6. OXILAM Y5Extended-cable diesel owners | 24000 amp hours | 12 V | 8.7"D x 4.7"W x 3.5"H | 3.2 lb | View on Amazon |
| 7 | 7. FlyAuto 8000A12V/24V Systems | 40000 milliamp hours | 24 V | — | — | View on Amazon |
| 8 | 8. AVAPOW TJ68Force-start battery emergencies | 24000 milliamp hours | 12 V | — | — | View on Amazon |
| 9 | 9. Clore Automotive JNC660Workshop and service-vehicle users | 22 | 12 V | 5.1"D x 14.1"W x 16.3"H | 18 lb | View on Amazon |
| 10 | 10. Autowit SuperCap S2-7.0Low-maintenance supercapacitor users | — | 12 V | 4.52"D x 10.43"W x 1.77"H | 2 lb | View on Amazon |
Detailed Reviews: Best Jump Box For Diesel 2

#1 · Best Overall
1. NOCO Boost GBX155
- Battery Capacity: 6750 milliamp hours
- Voltage: 12 V
- Dimensions: 8.18"D x 4.84"W x 13.51"H
- Weight: 7 lb
Best for: High-displacement diesel owners.
Why it ranks #1: Its explicit 8.0L diesel rating and 4,250-amp output make compatibility clearer than most contenders; USB-C Power Delivery supports faster recharging.
The NOCO GBX155’s 4,250-amp rating supports starts on diesel engines up to 8.0L, giving owners of large diesel vehicles a clearly stated engine-size ceiling. Its 12V lithium format also covers gas engines up to 10.0L, so one pack can serve a range of listed vehicle types, including trucks, tractors, RVs, and watercraft.
UltraSafe 2.0 adds spark-proof connections and reverse-polarity protection, helping reduce connection errors while managing heat and power. For owners who need to return the pack to service between uses, USB-C Power Delivery recharges it in 2.7 hours; the included 60W USB-C power bank can also supply power to compatible devices. At 7 pounds and 13.51 inches tall, it is portable, though its size and weight call for a planned storage spot.
- 4,250A peak rating
- Diesel engines up to 8.0L
- UltraSafe 2.0 spark-proof and reverse-polarity protection
- USB-C Power Delivery recharge in 2.7 hours
- At 7 pounds, it is heavier than a small glove-box emergency pack.
Skip it if you need to start a diesel above 8.0L; the listed YaberAuto AP05 supports diesel engines up to 14.0L.
Choose the GBX155 for a truck, tractor, or RV owner who wants a stated 8.0L diesel limit and faster USB-C recharging. Its 7-pound body and 13.51-inch height make storage space worth considering.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 6750 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Warranty, 12V USB-C Fast Charger, GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag, Power Bank with 60W USB-C Power Delivery, USB-C Charging Cable |
| Dimensions | 8.18"D x 4.84"W x 13.51"H |
| Item Weight | 7 pounds |
| Manufacturer | NOCO |
| Part Number | GBX155 |
| Manufacturer Warranty Description | 1 Year Limited |
| Model Number | GBX155 |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: NOCO Boost GBX155 4250A UltraSafe Jump Starter, 12V Lithium Battery Booster
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#2 · Largest Diesel Rating
2. YaberAuto AP05
- Battery Capacity: 27000 milliamp hours
- Voltage: 12 V
- Dimensions: 2.64"D x 2.04"W x 4.28"H
- Weight: 0.5 kg
Best for: Large-diesel roadside assistance.
Why it ranks #2: The listed diesel limit reaches 14.0L, with 8,000 amps and a 160PSI compressor; verify its stated 12V vehicle compatibility.
YaberAuto’s AP05 lists 8,000A peak current and support for diesel engines up to 14.0L, a high stated displacement ceiling for a portable 12V jump box. Its Force Start function is specified for fully depleted or critically low-voltage batteries, offering a stated recovery mode alongside the unit’s 160PSI air compressor.
The compressor comes with a detachable extended hose and four air nozzles, so the unit can handle more than jump starting without requiring a separate inflation tool in the listed package. Its 5+4+4 feature grouping and 10-in-1 title signal multiple functions, while the product details list a 27,000mAh capacity and rugged carrying case. The 12V vehicle specification and -4°F to 140°F operating range help define its intended use; confirm that those limits suit the vehicle and conditions at hand.
- 8,000A peak current
- Diesel engines up to 14.0L
- Force Start for fully depleted or critically low batteries
- 160PSI compressor with hose and four nozzles
- The listed voltage is 12V, not a 12V/24V dual-voltage system.
Skip it if you need one jump starter for 24V vehicles; the FlyAuto 8000A listing specifies both 12V and 24V operation.
The AP05 suits owners of large 12V diesel vehicles who want a stated 14.0L ceiling and integrated inflation capability. Its listed operating range is -4°F to 140°F, and it is not specified for 24V systems.
Full product details
| Brand | YaberAuto |
|---|---|
| Battery Capacity | 27000 milliamp_hours |
| Compatible with Vehicle Type | All Cars, Passenger Car, Motorcycle, Lawn Mower, Truck, RV, Tractor, ATV, UTV |
| Included Components | ♚8000A Jump Starter with 160PSI Air Compressor, ♚Detachable Extended Air Hose & 4 Air Nozzles, ♚Heavy-Duty Jumper Cables, ♚Instruction Manual & Rugged Carrying Case |
| Dimensions | 2.64"D x 2.04"W x 4.28"H |
| Item Weight | 0.5 kg |
| Manufacturer | Ekoo Electronic Co., Ltd |
| Part Number | AP05 |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Model Number | AP05 |
| Voltage | 12 volts |
Listed on Amazon as: YaberAuto 8000A 160PSI 10-in-1 Car Battery Jump Starter with Air Compressor
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#3 · Integrated Compressor
3. NACKEO N40
- Battery Capacity: 21800 milliamp hours
- Voltage: 12 V
- Dimensions: 2.24"D x 4.45"W x 8.39"H
- Weight: 2.2 lb
Best for: Diesel owners needing tire inflation.
Why it ranks #3: It specifies up to 12.0L diesel and 8,000 amps, plus a 160PSI compressor, making it a capable multi-function choice.
NACKEO’s N40 combines an 8,000A jump starter with a 160PSI air compressor, addressing starting and inflation needs in one portable unit. Its listing states support for diesel engines up to 12.0L and includes a force-start function, making it relevant to drivers who want a high-capacity jump box alongside an emergency compressor.
The detachable extended air hose and four nozzles give the compressor connections for different inflation tasks, while its 160PSI rating is intended for vehicle and outdoor use. The large LCD display helps the operator follow the unit’s settings, and the 600LM light adds illumination during nighttime roadside work. At 2.2 pounds and 8.39 inches tall, it remains carryable, but the listing specifically says the compressor does not support truck tires, an important boundary for heavy-vehicle owners.
- 8,000A peak current
- Diesel engines up to 12.0L
- 160PSI compressor with detachable hose and four nozzles
- 600LM light and large LCD display
- The included compressor does not support truck tires.
Skip it if you need to inflate truck tires as well as jump-start; the YaberAuto AP05 also lists a 160PSI compressor without that stated restriction.
The N40 suits drivers with diesel engines within its 12.0L limit who want a compressor, work light, and jump starter together. Its tire limitation matters: the supplied listing excludes truck tires.
Full product details
| Brand | NACKEO |
|---|---|
| Battery Capacity | 21800 milliamp_hours |
| Compatible with Vehicle Type | ATV, Bus, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van |
| Included Components | ➤2 Year Hassle-Free Warranty ➤ Lifetime Support Service, ➤8000A Jump Starter with 160PSI Air Compressor (NOT support trucks' tires), ➤Detachable Extended Air Hose & 4 Air Nozzles, ➤Heavy-Duty Jumper Cables ➤ Rugged Carrying Case, ➤USB-C Charging Cable & Instruction Manual |
| Dimensions | 2.24"D x 4.45"W x 8.39"H |
| Item Weight | 2.2 pounds |
| Manufacturer | NACKEO |
| Part Number | N40 |
| Manufacturer Warranty Description | 2-year warranty |
| Model Number | N40 |
| Voltage | 12 volts |

#4 · Compact Diesel Option
4. S ZEVZO ET03
- Battery Capacity: 20000 milliamp hours
- Voltage: 12 V
- Dimensions: 1.5"D x 3.4"W x 7.5"H
- Weight: 1.4 lb
Best for: Compact 0V battery recovery.
Why it ranks #4: Its 4,000-amp rating explicitly covers diesels up to 7.0L, while its 1.4-pound listed weight and force-start feature suit portable use.
S ZEVZO’s ET03 combines a 4,000A peak rating with Force Start for batteries listed as completely dead at 0V, making that recovery function its defining appeal. The listing gives support for diesel engines up to 7.0L and up to 50 starts per charge, useful specifics for owners assessing a 12V emergency pack.
At 1.4 pounds and 7.5 inches tall, the ET03 is easy to keep in a vehicle, while its 1.5-inch depth helps it fit into a compact storage space. The LCD display provides status information, and the USB ports can charge devices when the pack is not starting a vehicle. Its integrated LED light adds illumination for roadside work. The included case, smart clamps, and charging cable keep the main jump-start accessories together for storage and use.
- 4,000A peak current
- Force Start for 0V batteries
- Diesel engines up to 7.0L
- Up to 50 starts per charge
- It is specified for 12V vehicles, not 24V systems.
Skip it if you need to start a 24V vehicle; the FlyAuto 8000A is listed for both 12V and 24V systems.
The ET03 fits drivers who want a light, compact 12V pack with a stated 7.0L diesel ceiling and 0V Force Start. Its listed 50-start maximum and included case suit an emergency vehicle kit.
Full product details
| Brand | S ZEVZO |
|---|---|
| Battery Capacity | 20000 milliamp_hours |
| Compatible with Vehicle Type | Lawn Mower, Motorcycle, Passenger Car, Tractor, Truck, Van |
| Included Components | Portable Carrying Case*1, S ZEVZO Car Jump Starter*1, Smart Jumper Clamps*1, USB Charging Cable*1, User Manual*1 |
| Dimensions | 1.5"D x 3.4"W x 7.5"H |
| Item Weight | 1.4 pounds |
| Manufacturer | Dongguan Chuangyi New Energy Technology Co., Ltd |
| Part Number | ET03 |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Model Number | ET03 |
| Voltage | 12 volts |
Listed on Amazon as: S ZEVZO ET03 Car Jump Starter 4000A Jump Starter Battery Pack for Up to 8.0L Gas and 7.0L Diesel Engines, 74Wh Portable 12V Jump Box with USB Ports, LCD Display, Storage Case, and LED Light
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#5
5. NOCO Boost GB70
- Battery Capacity: 5000 milliamp hours
- Voltage: 12 V
- Dimensions: 7.4"D x 3.7"W x 12.6"H
- Weight: 2 kg
Best for: Mid-size diesel vehicle owners.
Why it ranks #5: This 2,000-amp model has a stated 6.0L diesel limit and up to 40 starts per charge, but trails higher-rated alternatives.
The NOCO GB70 states support for diesel engines up to 6.0L, giving owners a concrete boundary for choosing it as a 12V roadside starter. Its 2,000A peak output is paired with up to 40 starts per charge, a useful combination for drivers who want repeated jump attempts before recharging.
Spark-proof and reverse-polarity protection help simplify clamp connection by guarding against sparks and incorrect polarity. The integrated power bank can provide emergency power to phones and tablets, extending the pack’s usefulness beyond vehicle starting. It recharges in six hours and weighs about 2 kilograms, so owners can plan a regular charging window and a storage location rather than treat it as an always-ready, maintenance-free item. Listed vehicle types include trucks, RVs, tractors, and watercraft.
- 2,000A peak lithium power
- Diesel engines up to 6.0L
- Up to 40 starts per charge
- Spark-proof and reverse-polarity protection
- Its stated diesel limit is 6.0L, below the GBX155’s 8.0L limit.
Skip it if you drive a diesel above 6.0L; the NOCO GBX155 lists support up to 8.0L diesel engines.
The GB70 suits owners of 12V trucks, RVs, or tractors with diesel engines within its 6.0L limit, especially those who value repeated starts and device charging. Larger-displacement diesel owners need a higher stated ceiling.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 5000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Limited Warranty, GB70 Portable Car Battery Jump Starter Pack, Heavy-Duty Booster Clamps, Microfiber Storage Bag, USB-C Charging Cable, User Guide for Jump Starter, XGC Cable, XGC Male and Female Connectors |
| Dimensions | 7.4"D x 3.7"W x 12.6"H |
| Item Weight | 2 kg |
| Manufacturer | NOCO |
| Part Number | GB70 |
| Manufacturer Warranty Description | 1-Year Limited Warranty |
| Model Number | GB70 |
| Voltage | 12 volts |
Listed on Amazon as: NOCO Boost GB70 2000A UltraSafe Jump Starter, 12V Lithium Battery Booster
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#6
6. OXILAM Y5
- Battery Capacity: 24000 amp hours
- Voltage: 12 V
- Dimensions: 8.7"D x 4.7"W x 3.5"H
- Weight: 3.2 lb
Best for: Extended-cable diesel owners.
Why it ranks #6: It claims support for all gas and diesel engines and provides 10,000 peak amps, but supplies no specific diesel displacement ceiling.
OXILAM specifies extended 8 AWG jumper cables, a practical distinction for reaching a vehicle’s battery connection while keeping the pack positioned nearby. The Y5 also lists 10,000A peak current and compatibility with gas and diesel engines, pairing substantial stated output with a cable feature intended to support current delivery during a jump.
Its 24,000mAh capacity and 10,000A peak rating support the listing’s claim of use with dead batteries, while the extended 8 AWG cables are described as offering lower resistance and higher current capacity than standard 10 AWG wires. The LED display, USB, DC, and Type-C ports give the unit roles beyond starting, and the LED light can help illuminate roadside work. At 3.2 pounds, the pack is manageable to carry, but is still an item to store with its cables.
- 10,000A peak current
- Extended 8 AWG jumper cables
- 24,000mAh capacity
- LED display, USB, DC, Type-C ports, and LED light
- The listing does not state a maximum diesel engine displacement.
Skip it if you need a published diesel displacement ceiling before buying; the NOCO GBX155 specifies support up to 8.0L diesel.
The Y5 fits drivers who want extended cables, multiple charging ports, and a stated 10,000A peak rating in a 3.2-pound pack. Its listing names gas and diesel engines but does not set a displacement limit.
Full product details
| Brand | OXILAM |
|---|---|
| Battery Capacity | 24000 amp_hours |
| Compatible with Vehicle Type | All of the above |
| Dimensions | 8.7"D x 4.7"W x 3.5"H |
| Item Weight | 3.2 pounds |
| Manufacturer | shenzhenshiruixuechuangxinkejiyouxiangongsi |
| Part Number | 1-OXILAM-DY-Y5 |
| Manufacturer Warranty Description | 48 months warranty |
| Model Number | Y5 |
| Voltage | 12 volts |

#7 · 12V/24V Systems
7. FlyAuto 8000A
- Battery Capacity: 40000 milliamp hours
- Voltage: 24 V
Best for: Mixed 12V and 24V fleets.
Why it ranks #7: Its 8,000-amp booster supports both 12V and 24V systems, useful for varied vehicles, though the listing gives no diesel engine-size limit.
FlyAuto’s 8000A jump starter supports both 12V and 24V vehicle systems, making voltage range its clearest distinction for operators with mixed equipment. The listing targets large gas and diesel engines and names trucks, RVs, commercial vehicles, tractors, and boats among its applications, giving fleet and work-vehicle owners a broad stated use case.
The 40,000mAh capacity and 8,000A peak rating are paired with a force-start function for jump-starting large engines, while the digital display gives the operator a readout during setup. An LED light can help illuminate work around the vehicle, and USB charging provides another use for the pack between starts. The supplied contents list the jump starter itself, so buyers should account for the accessory package they need; its dual-voltage support is the key fit for 12V/24V fleets.
- Supports both 12V and 24V systems
- 8,000A peak current
- 40,000mAh capacity
- Force Start, digital display, LED light, and USB charging
- The supplied contents list the jump starter only, without listing clamps or charging cables.
Skip it if you need a stated diesel displacement ceiling before choosing; the YaberAuto AP05 specifies support up to 14.0L diesel.
The FlyAuto suits operators who need one listed booster for both 12V and 24V equipment, including trucks, RVs, and commercial vehicles. The supplied package details list only the jump starter, so accessory needs matter.
Full product details
| Brand | FlyAuto |
|---|---|
| Battery Capacity | 40000 milliamp_hours |
| Compatible with Vehicle Type | All vehicel |
| Included Components | jump starter |
| Manufacturer | FlyAuto |
| Part Number | HH-989 |
| Manufacturer Warranty Description | 1 year |
| Model Number | 8000A |
| Voltage | 24 volts |

#8
8. AVAPOW TJ68
- Battery Capacity: 24000 milliamp hours
- Voltage: 12 V
Best for: Force-start battery emergencies.
Why it ranks #8: It provides 10,000 peak amps, a force-start mode and a 24,000mAh capacity, but the supplied details do not specify diesel displacement.
AVAPOW’s TJ68 pairs a stated 10,000A peak output with Force Start for critically low batteries, including batteries listed at 0%. That feature gives drivers a recovery option when standard modes may not respond. Its 12V format and listed compatibility with trucks, RVs, motorcycles, and other vehicles suit a varied roadside kit.
The 4-inch HD display gives the operator a visual interface while setting up a jump, and the supplied jumper clamps connect the pack to the vehicle. A 24,000mAh capacity is specified, while the included cigarette-lighter socket adapter adds an accessory-power option for compatible equipment. The listing identifies 12V operation, so this is a fit for 12V vehicles rather than a stated 24V starting solution; its range of vehicle types still makes it useful across a mixed 12V household fleet.
- 10,000A peak current
- Force Start for critically low batteries, including 0%
- 4-inch HD display
- Cigarette-lighter socket adapter included
- The listed operating voltage is 12V, not a dual-voltage 12V/24V system.
Skip it if you need one booster for 24V vehicles; the FlyAuto 8000A listing specifies both 12V and 24V operation.
The TJ68 suits a 12V truck or mixed-vehicle owner who values Force Start and a large display for roadside setup. Choose another solution if your fleet includes 24V systems, since this listing specifies 12V.
Full product details
| Brand | AVAPOW |
|---|---|
| Battery Capacity | 24000 milliamp_hours |
| Compatible with Vehicle Type | ATV, All of the above, Lawn Mower, Motorcycle, Passenger Car, RV, Snowmobile, Truck, Van |
| Included Components | 1*Cigarette Lighter Socket Adapter, 1*Jumper Cable Clamps, 1*TJ68 Jump Starter, 1*USB-C Charging Cable, 1*User Manual |
| Manufacturer | DONGGUAN CARPOWER NEW ENERGY CO.,LTD |
| Part Number | TJ68 |
| Manufacturer Warranty Description | Lifetime |
| Model Number | TJ68 |
| Voltage | 12 volts |
Listed on Amazon as: AVAPOW TJ68 10000A Battery Jumper Starter Portable with 4" HD Display
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#9
9. Clore Automotive JNC660
- Battery Capacity: 22
- Voltage: 12 V
- Dimensions: 5.1"D x 14.1"W x 16.3"H
- Weight: 18 lb
Best for: Workshop and service-vehicle users.
Why it ranks #9: Its 1,700 peak amps, 22Ah battery and 46-inch cables suit heavy-duty vehicle use, but no diesel engine limit is listed.
Clore Automotive’s JNC660 pairs 1,700 peak amps with 46-inch heavy-duty #2 AWG cables, giving operators extra reach between the starter pack and vehicle connection point. That cable length can help when a vehicle’s starting point is awkwardly positioned, while its 12V format covers the vehicle types listed, including trucks, buses, tractors, and RVs.
The 22Ah Clore Proformer battery is specified for jump starting, and the onboard voltmeter lets an operator check the pack’s charge status before relying on it. Its 12V DC outlet can power compatible accessories, extending its use during service work. At 18 pounds and 16.3 inches tall, it is a substantial unit rather than a pocketable booster; the longer cables and charge readout make more sense for a workshop, service vehicle, or dedicated storage area.
- 1,700 peak amps
- 46-inch heavy-duty #2 AWG cables
- Onboard voltmeter for charge status
- 12V DC outlet for accessories
- At 18 pounds, it is less convenient to carry than a lightweight lithium booster.
Skip it if you prioritize a lightweight portable pack; the S ZEVZO ET03 weighs 1.4 pounds and supports diesel engines up to 7.0L.
The JNC660 suits mechanics, service-vehicle operators, and owners who value long cables and a visible charge check. Its 18-pound weight and 16.3-inch height favor planned storage over frequent carrying.
Full product details
| Brand | Clore Automotive |
|---|---|
| Battery Capacity | 22 |
| Compatible with Vehicle Type | ATV, Bus, Lawn Mower, Passenger Car, RV, Tractor, Truck, Van, Watercraft |
| Included Components | JNC660 12V Jump Starter |
| Dimensions | 5.1"D x 14.1"W x 16.3"H |
| Item Weight | 18 pounds |
| Manufacturer | Clore Automotive |
| Part Number | JNC660 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | JNC660 |
| Voltage | 12 volts |
Listed on Amazon as: Clore Automotive Jump-N-Carry JNC660 1700 Peak Amp 12 Volt Jump Starter , Blue
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#10
10. Autowit SuperCap S2-7.0
- Voltage: 12 V
- Dimensions: 4.52"D x 10.43"W x 1.77"H
- Weight: 2 lb
Best for: Low-maintenance supercapacitor users.
Why it ranks #10: The supercapacitor design avoids regular charging, but the listing gives no diesel rating and says it cannot start below 1V.
Autowit’s SuperCap 2 uses supercapacitors rather than a conventional jump-starter battery, so it does not require regular charging at home. It can draw power from a weak vehicle battery and be ready to start in a few minutes, a different ownership routine for drivers who prefer not to maintain a charged booster pack.
The unit’s ability to draw energy from the vehicle’s weak battery can reduce the need to keep a separate jump starter topped up, while its 12V format fits the voltage stated in the listing. The important operating boundary is battery condition: the supplied facts say it cannot start an engine when the vehicle battery falls below 1V. At 2 pounds and 10.43 inches wide, it is portable, but the user needs enough remaining battery voltage for its charging process.
- Supercapacitor design requires no regular home pre-charging
- Draws power from a weak vehicle battery
- Can be ready to jump-start in a few minutes
- 2-pound weight
- It cannot start the engine if the vehicle battery voltage is below 1V.
Skip it if you may face a battery below 1V; the NOCO GBX155 is a lithium jump starter with its own stated 6750mAh capacity.
The SuperCap 2 suits drivers seeking a 12V starter without routine at-home charging, particularly when the vehicle battery retains enough voltage to supply it. Its below-1V limit rules out fully depleted batteries.
Full product details
| Brand | autowit |
|---|---|
| Compatible with Vehicle Type | Motorcycle, Tractor |
| Dimensions | 4.52"D x 10.43"W x 1.77"H |
| Item Weight | 2 pounds |
| Manufacturer | Autowit |
| Part Number | autowit |
| Model Number | S2-7.0 |
| Voltage | 12 volts |
Listed on Amazon as: Autowit Super Capacitor Jump Starter, 12V Batteryless Portable
View on AmazonWhy a high amp number does not settle diesel fit
A high peak-amp figure does not by itself confirm that a jump starter suits your diesel’s engine size. In this lineup, NOCO gives a clear diesel ceiling for both Boost models: 8.0L for the GBX155 and 6.0L for the GB70. S ZEVZO specifies 7.0L, while YaberAuto and NACKEO claim 14.0L and 12.0L respectively.
Several products advertise 8,000 or 10,000 amps without a diesel displacement limit in the supplied details. That leaves a compatibility question unanswered, even when the number looks impressive.
Check the vehicle manual or manufacturer guidance for the engine size and system voltage, then compare those directly with the jump starter’s stated limits. Broad wording such as all diesel engines is not a substitute for a specific rating when your vehicle is near the upper end.
Dead-battery limits and the supercapacitor trade-off
A completely depleted battery can expose an important difference between jump starter designs. AVAPOW TJ68, OXILAM Y5, S ZEVZO ET03 and YaberAuto AP05 mention a force-start or boost function for critically low batteries; those features do not establish that every dead battery can be revived. Autowit SuperCap S2-7.0 takes a different approach: it draws power from a weak vehicle battery rather than requiring routine precharging, but its supplied information says it cannot start an engine if battery voltage is below 1V.
That makes it a poor fit for a buyer who needs a stated low-voltage rescue capability. A supercapacitor also differs from a stored-charge lithium pack in how it obtains starting energy.
Consider whether your priority is avoiding regular charging or bringing a charged booster to a vehicle with a very weak battery.
How to Choose a Diesel Jump Box
Diesel engine-size rating
Look for a stated diesel displacement limit that meets or exceeds your engine size. This set ranges from NOCO Boost GB70 at up to 6.0L diesel to S ZEVZO ET03 at 7.0L and NOCO Boost GBX155 at 8.0L; NACKEO N40 lists 12.0L, and YaberAuto AP05 lists 14.0L. OXILAM Y5 says it supports all diesel engines but provides no numeric ceiling, while several others omit a diesel size limit.
If you have a smaller diesel and want an explicit specification, a listed limit such as 6.0L or 8.0L is easier to assess. Owners of larger engines should favor a product whose stated maximum covers their displacement and confirm the match with its manufacturer.
Peak amps and starting features
Compare peak amps alongside the engine rating, rather than treating the largest number as proof of compatibility. The listed figures range from 1,700 amps for Clore Automotive JNC660 and 2,000 for NOCO Boost GB70 to 4,250 for NOCO Boost GBX155 and 8,000 or 10,000 for several other models. Force-start features appear on products including S ZEVZO ET03, NACKEO N40, YaberAuto AP05 and AVAPOW TJ68.
These can matter when a battery is critically low, but do not erase the need to check the diesel rating. A buyer seeking a specified fit should prioritize a clear engine limit; someone who also wants a low-voltage start mode can compare the listed force-start functions.
System voltage and portability
Check that the jump starter matches the vehicle’s electrical system, then consider how much weight and space you can carry. Most products in the supplied details are 12V; FlyAuto 8000A is described as supporting both 12V and 24V systems. Listed weights range from 1.4 pounds for S ZEVZO ET03 and 2.2 pounds for NACKEO N40 to 7 pounds for NOCO Boost GBX155 and 18 pounds for Clore Automotive JNC660.
The JNC660 also has 46-inch cables, while the lithium models emphasize portable formats. For a roadside kit carried regularly, the lighter products are easier to transport.
For work use, added weight may matter less than cable reach or dual-voltage coverage, provided the vehicle match is confirmed.
Which Diesel Jump Box Should You Choose?
Choose NOCO Boost GBX155 if you want a clearly stated diesel limit up to 8.0L paired with 4,250 amps. For a diesel above that stated size, YaberAuto AP05 lists support up to 14.0L, and NACKEO N40 covers up to 12.0L; both also include air compressors. For an explicitly rated smaller diesel in a lightweight pack, S ZEVZO ET03 lists up to 7.0L and weighs 1.4 pounds.
NOCO Boost GB70 is a defined option for engines up to 6.0L diesel. If your vehicle uses 24V, consider FlyAuto 8000A, but confirm the engine fit because no diesel displacement ceiling is provided.
Avoid choosing solely by peak amps: match the stated engine rating and system voltage to your vehicle first.
Related Buying Guides
- Best Jump Pack For Diesel 2
- Best Diesel Jump Starter
- Best Jump Box Air Compressor
- Best Battery Jump Start Box
- Best Diesel Mechanic Tool Box
- Best Diesel Truck Jump Starter
Frequently Asked Questions
How do I match a jump starter’s diesel engine rating to my vehicle?
Choose a starter whose stated diesel displacement limit meets or exceeds your engine size, and verify the vehicle’s voltage. For example, the NOCO GBX155 lists diesel support up to 8.0L, while YaberAuto 8000A Air Compressor lists up to 14.0L. These are manufacturer-provided claims, not comparative test results.
Can a portable jump starter work when a diesel battery is completely dead?
It may help if the battery is discharged but otherwise usable, but a jump starter cannot guarantee recovery of a failed or damaged battery. Follow the vehicle and starter instructions, including any required connection or force-start procedure. If the battery will not accept a start, have the battery and charging system checked.
Should I choose a 12V or 24V jump starter for my diesel vehicle?
Choose the voltage that matches your vehicle’s electrical system; a 12V starter is not a substitute for a 24V unit. Check the vehicle manual or battery label before buying. The listed 12V/24V heavy-duty unit is an option for either system, but confirm its engine fit because no diesel displacement ceiling is provided.
Is peak amperage enough to determine whether a starter fits my diesel?
No. Peak amperage alone does not establish diesel engine compatibility. Prioritize a stated diesel displacement limit that covers your engine, then check system voltage and the product’s instructions.
The GBX155’s stated limit of 8.0L and 4,250 amps makes its fit clearer than high-amp listings without a stated diesel ceiling.
Does an air compressor matter when choosing a diesel jump starter?
An integrated compressor can add tire inflation capability, but it does not replace checking jump-start compatibility. The listed 8000A compressor unit states support for up to 12L diesel, while YaberAuto 8000A Air Compressor lists up to 14.0L. Verify the exact product’s engine rating and voltage before choosing based on added features.
Final Words
Start with your diesel’s displacement and electrical-system voltage, not the largest peak-amp figure. The NOCO GBX155 is the clearest all-around match for engines up to 8.0L; for larger stated ratings, consider YaberAuto up to 14.0L or NACKEO N40 up to 12.0L. For 24V vehicles, confirm engine fit before choosing the 12V/24V option.
Treat listed compatibility as manufacturer-provided guidance.

