Best Locking Fuel Cap for Cars, Trucks, and Specific Models

#1 · Best Overall

1. SEEBOO Locking Gas Cap

• Weight: 4.8 oz
• Material: Acrylonitrile Butadiene Styrene (ABS)…
• Compatible with Vehicle Type: Car

Best for: Broad make replacement shoppers.

Why it ranks #1: Replacement numbers 10504 and 77300-47020 and stated fit across many makes suit broad replacement searches; ABS and rubber construction is specified.

Its cross-brand application list is the main draw: SEEBOO identifies compatibility across makes including Chevrolet, GMC, Toyota, Honda, Nissan and Buick. The cap replaces 10504 and 77300-47020, giving shoppers two specific references to check while narrowing a replacement for one of the listed vehicles.

The stated replacement numbers connect this cap to 10504 and 77300-47020 applications, while the brand list reaches beyond a single automaker to include Acura, Infiniti, Isuzu, Mazda, Mitsubishi, Scion and others. That breadth can help owners begin a parts search from either the vehicle make or the replacement number. The supplied material identifies ABS plastic and rubber, but fitment still depends on the particular vehicle; confirm its application before ordering.

Skip it if you need a stated two-key set or diesel-truck 10591D fitment; LANDSIN’s 10591D cap lists truck applications and its included housing.

Consider it if your car appears in SEEBOO’s broad make and model application information and the replacement numbers match; its wide brand list does not establish fit for every vehicle.

Listed on Amazon as: Locking Gas Cap, Lock Fuel Cap Compatible With Chevy GMC Silverado Cruze Express Malibu Colorado Suburban Tahoe Equinox Terrain Sierra Savana Acadia Acura Buick Cadillac Lexus And More

#2 · Toyota and Chevy Fit

2. ZONFANT Locking Gas Cap

• Compatible with Vehicle Type: Cruiser

Best for: Toyota and Chevy replacement shoppers.

Why it ranks #2: Lists replacement numbers 10504, 31780, and 77300-47020, extensive Toyota applications, and Chevy coverage; the package includes two keys.

Two supplied keys make this ZONFANT locking cap practical for drivers who want a spare key alongside a replacement for select Toyota and Chevrolet vehicles. Its listed replacement numbers—10504, 31780 and 77300-47020—give shoppers concrete identifiers to compare against their vehicle’s existing cap before ordering.

The 10504, 31780 and 77300-47020 cross-references provide a useful starting point when matching a replacement, while the stated Toyota and Chevrolet applications cover a broad range of named models and years. The two included keys mean the cap does not leave the owner with only one key for routine access. Because the listed fitment spans particular model years rather than every vehicle from those brands, checking the exact application remains important before installation.

Skip it if you need a diesel-truck-specific 10591D cap; LANDSIN’s 10591D listing names Chevrolet, Dodge and Ford truck applications.

A Toyota or Chevrolet owner seeking a keyed replacement with two keys may find this listing useful, provided the vehicle matches its stated model-year applications and replacement numbers.

Listed on Amazon as: Locking Gas Cap W/2 Keys, Lock Fuel Cap, Replace#10504 77300-47020

#3 · Broad Make Coverage

3. Hirificing Locking Gas Cap

• Weight: 4.8 oz
• Material: Acrylonitrile Butadiene Styrene (ABS)
• Compatible with Vehicle Type: Car, Truck

Best for: Sealing-focused keyed cap buyers.

Why it ranks #3: States compatibility with cars and trucks across makes including Toyota, Chevy, Nissan, GMC, and Honda; its ABS-and-rubber cap comes with two keys.

A spiral-knob design is this Hirificing cap’s clearest functional detail: the listing connects its tighter fit with sealing and reducing vapor emissions. It also includes two keys and identifies applications across cars and trucks, giving buyers specific features to weigh alongside the 10504 and 77300-47020 references.

The spiral-knob design is described as helping the cap fit more tightly, with the stated aim of strong sealing and reduced vapor emissions. ABS plastic and rubber are also identified, with waterproof and anti-corrosion properties listed; those material claims may matter to owners considering routine exposure around the fuel opening. Two keys provide a spare for access, while the application list includes models from several makes. Match the vehicle to the stated fitment before purchase.

Skip it if you need a longer stated warranty period; Dtomi’s 10591D listing specifies a one-year manufacturer warranty.

This suits a driver seeking a keyed cap with a stated sealing focus and two keys, provided the vehicle matches the listed applications; note the stated seven-day warranty period.

Listed on Amazon as: Locking Gas Cap Fuel Tank with Key, Gas Cap Lock Locking Fuel Cap Cover Compatible with Toyota 4Runner, Chevy Silverado 1500 2500 3500, Nissan GMC Honda Subaru Buick #10504 77300-47020

#4 · Metal Diesel Cap

4. LLNSEAUTO 10591D Cap

• Weight: 0.13 kg
• Material: Metal
• Compatible with Vehicle Type: Truck

Best for: Two-key diesel truck owners.

Why it ranks #4: Targets diesel-truck applications with 10591D and related replacement numbers, lists metal construction, and includes two keys.

Two included keys and a stated lock-and-remove sequence distinguish this LLNSEAUTO 10591D cap for truck owners who want clear key handling after installation. Its listed Chevrolet, Dodge, Ford and GMC applications, together with several replacement numbers, offer multiple ways to check whether it matches a vehicle.

The instructions say to turn the cap to locked status to remove the key, then rotate it clockwise on the tank port until it clicks. That sequence gives owners a specific reference for securing the cap during routine refueling. The 10591D and cross-reference numbers support parts matching, while the fitment list names truck applications across four brands. Metal is the specified material, and two keys are included; confirm the precise application before ordering.

Skip it if you need an expressly stated tight-seal feature; LANDSIN’s 10591D listing specifically describes a tight seal for the fuel tank.

Choose this for a listed truck application when two keys and explicit locking steps matter; its 10591D fitment is not a universal truck specification, so verify the exact vehicle.

Listed on Amazon as: 10591D Locking Diesel Fuel Cap Gas Cap Fuel Tank Caps Fit for Chevy Silverado Express C3500 K3500, Dodge Ram 3500 W350 D350, Ford F-250 E-350, GMC Sierra Savana, OE # 9MGC791, MGC791, 10591

#5

5. LANDSIN 10591D Cap

• Weight: 0.14 kg
• Material: Acrylonitrile Butadiene Styrene (ABS), Rubber
• Compatible with Vehicle Type: Truck

Best for: Diesel truck replacement buyers.

Why it ranks #5: The 10591D cap is specified for truck applications including Silverado, Sierra, and Ram models, with ABS and rubber construction and a one-year warranty.

A stated tight seal is the central feature of this LANDSIN 10591D cap, which is listed for diesel-truck applications across Chevrolet, Dodge, Ford and GMC. Its multiple replacement-number references help buyers cross-check a worn or missing cap against more than one identifier before choosing a replacement.

The 10591D reference and its listed equivalents—among them 9MGC791, 31778D and 40791—give truck owners several identifiers to compare during a parts search. The fitment information names applications such as Silverado 2500 HD, Ram 2500 and Ford F-250, while the stated tight seal addresses keeping the fuel tank closed. ABS and rubber are the listed materials, and the included housing is specified; verify the particular vehicle application before installation.

Skip it if you need two included keys or a named turn-to-lock routine; LLNSEAUTO’s 10591D listing specifies two keys and the locking sequence.

This cap suits a truck owner matching a listed 10591D replacement number and application, especially when a stated tight seal is a priority; check the exact year and model first.

Listed on Amazon as: 10591D Locking Fuel Gas Cap For Diesel Trucks Fuel Tank

#6

6. Dtomi 10591D Cap

• Weight: 0.15 kg
• Material: Plastic
• Compatible with Vehicle Type: Truck

Best for: Heavy-duty truck cap replacement.

Why it ranks #6: Lists the 10591D replacement family and Chevy Silverado 2500 HD and GMC Sierra applications, but the package description lists one cap without keys.

The 10591D replacement reference anchors this Dtomi cap to a range of named Chevrolet and GMC truck applications, including Silverado and Sierra heavy-duty models. That specific parts-family focus gives buyers a starting point for replacing a cap without relying on a generic, all-vehicle compatibility claim.

Dtomi lists 10591D along with 9MGC791, MGC791, 31778D and other cross-references, so buyers can compare the cap against several identifiers from a parts search. The stated Chevrolet applications include Silverado 2500 HD and Express 3500, while its GMC list includes Sierra models. Plastic is the specified material, and the package contains one fuel tank filler cap. Since fitment is year-specific, match the listed vehicle and year before installation.

Skip it if you want two included keys and a stated locking sequence; LLNSEAUTO’s 10591D listing includes both keys and operating instructions.

A Chevrolet or GMC truck owner comparing 10591D-family replacements can use the listed model applications and cross-references to narrow the choice; the exact year and vehicle still need to match.

Listed on Amazon as: Locking Fuel Cap 10591D Fit For Chevy Silverado GMC Sierra Dodge Ram

#7 · Flex-Fuel Specialist

7. MotoRad MGC903 Cap

• Weight: 4 oz
• Material: Plastic
• Compatible with Vehicle Type: Car, Truck

Best for: Flex-fuel cam-on cap owners.

Why it ranks #7: Designed for flex-fuel applications with non-threaded cam-on caps; stated fits include selected Silverado, Malibu, Tahoe, and Impala models.

Flex-fuel application and non-threaded, black cam-on fitment define the MotoRad MGC903. Its vehicle-specific listing names Chevrolet models including Silverado 1500, Malibu and Tahoe, while the product information states that it passes state and federal emissions tests.

The cam-on, non-threaded design makes cap style a key part of the fit check, while the flex-fuel application narrows the intended use further. MotoRad lists select Chevrolet vehicles and identifies the MGC903 replacement number, helping owners compare both vehicle and part references. The stated emissions-test compliance adds a relevant consideration for fuel-vapor control, and the cap is described as protecting fuel from theft and vandalism. Confirm the exact vehicle application and cap style.

Skip it if you need a Ford F-150 capless fuel plug; Ford’s 8U5Z-9C268-B listing specifically identifies its 2009–14 capless-system application.

A driver with a listed flex-fuel vehicle using a black, non-threaded cam-on cap can consider this MotoRad option; vehicle and cap style both define its fit boundary.

Listed on Amazon as: MotoRad MGC903 Locking Fuel Cap for Flex-Fuel Applications with Black Cam-On (non-threaded) Caps Fuel Tank Cap Fits Chevy Silverado 1500 04–12 2500 HD 04–10 Malibu 04–12 Tahoe 04–13 Impala 06–10

#8

8. MotoRad MGC-502 Cap

• Weight: 3.52 oz
• Material: Aluminum
• Compatible with Vehicle Type: Car, Truck

Best for: Ford Super Duty emissions-conscious owners.

Why it ranks #8: Lists selected Ford Super Duty and E-Series applications, aluminum construction, and pressure and vacuum relief valves designed to prevent fuel evaporation.

Pressure and vacuum relief valves set the MotoRad MGC-502 apart, with the listing linking their design to limiting fuel evaporation. The locking cap also specifies state and federal emissions compliance and names several Ford Super Duty applications, giving Ford truck owners details beyond theft deterrence to assess.

The specified pressure and vacuum relief valves are intended to prevent fuel evaporation, while the listing states that the cap meets state and federal emissions requirements. Those details make this more than a keyed security choice for an owner replacing a cap on a named Ford application. Fitment includes F-250 and F-350 Super Duty models from 2009–21 and E-Series applications. OEM-quality materials are stated, and checking the exact vehicle remains essential.

Skip it if you need a Ford cap specifically identified for F-150 capless systems; Ford’s 8U5Z-9C268-B listing names 2009–14 F-150.

A Ford Super Duty owner prioritizing a locking cap with specified relief valves and emissions compliance can consider this model, as long as the vehicle falls within the listed fitment.

Listed on Amazon as: MotoRad MGC-502 Locking Fuel Cap – Ford F-250 Super Duty (09-21) F-350 Super Duty (09-21) E-350 Super Duty (04-10) E-350 Club Wagon (04-05) E-450 Super Duty (05-10) F-450 Super Duty (09-21)

#9

9. Xurkcinp Jeep Gas Cap

• Material: Plastic, Rubber
• Compatible with Vehicle Type: Car, Truck

Best for: Jeep and Ram keyed-cap shoppers.

Why it ranks #9: Provides a keyed cap for specified Jeep, Dodge, Chrysler, and Ram applications and lists replacement numbers 05278655AB and 5278655AB.

Two included keys accompany this Xurkcinp locking cap, which lists Jeep, Dodge, Chrysler and Ram applications under replacement numbers 05278655AB and 5278655AB. That combination gives owners concrete cross-references and a spare key when checking a replacement for one of the named vehicle families.

The two replacement numbers provide a starting point for identifying the cap, while the broad application description names Jeep models such as Wrangler, Grand Cherokee and Liberty. Dodge, Chrysler and Ram are also identified in the title, but the detailed supplied fitment centers on Jeep applications. Plastic and rubber are the listed materials, and the package includes one cap with two keys. Check the exact model and year against the full application information before ordering.

Skip it if you need a Ford F-150-specific capless locking plug; Ford’s 8U5Z-9C268-B listing names 2009–14 F-150 capless systems.

This may suit a Jeep, Dodge, Chrysler or Ram owner whose exact application matches the listing and replacement numbers; the detailed supplied fitment is clearest for Jeep models.

Listed on Amazon as: Locking Gas Cap Fit for Jeep Dodge Chrysler Cherokee Challenger Charger Liberty Grand Cherokee Journey Ram 1500 2500 3500 Wrangler TJ LJ JK JKU JL JT Lock Fuel Tank Cap 05278655AB 5278655AB

#10

10. Ford OEM F-150 Plug

• Weight: 0.06 kg
• Material: Metal
• Compatible with Vehicle Type: Car

Best for: Ford F-150 capless-system owners.

Why it ranks #10: This genuine Ford locking plug is limited to listed F-150 capless systems, so it serves a narrower application than the other locking-cap options.

Ford identifies this genuine locking fuel plug for 2009–14 F-150 capless systems, making its system-specific application the key distinction. The metal plug comes with keys, so it gives owners of those listed trucks a Ford-branded replacement option rather than a broadly described universal cap.

The 2009–14 F-150 application is explicitly tied to capless systems, an important fit consideration when replacing a fuel plug rather than a conventional cap. Ford identifies the part as genuine, and the listed metal construction and included locking fuel plug give buyers further details to compare with their existing setup. Its narrow application makes the model-year range especially relevant: use it for the stated F-150 capless fitment, not as a general Ford truck replacement.

Skip it if you own a listed Ford Super Duty and want pressure and vacuum relief valves; MotoRad MGC-502 names those features and truck applications.

This is the focused choice for an owner of a 2009–14 F-150 with a capless system who wants a genuine Ford locking plug; that application boundary is central to the fit decision.

Listed on Amazon as: Ford Oem Factory Stock Genuine 2009 2010 2011 2012 2013 2014 F-150 F150 Locking Lock Gas Fuel Plug Cap W Keys for Capless Systems