Best Electric Rear Axle Kit for DIY Go-Karts and ATVs

#1 · Best Overall

1. 91.SCS Complete 60V Kit

Best for: Complete 60V conversion builders.

Why it ranks #1: Its 60V 2500W motor and 12:1 differential come with five batteries, charger, controller, wiring, wheels, hubs, and a 43-inch axle.

A 60V 2500W brushless motor paired with an integrated 12:1 differential gives this 91.SCS kit a high-torque foundation for a custom electric vehicle. Its listed package also includes five 12V 20Ah batteries and a charger, enabling builders to start with a supplied battery set rather than sourcing those components separately.

The motor is rated for 5000 RPM and up to 400N.m of torque, giving this kit a substantial powertrain for a go-kart, ATV, or buggy conversion. Its integrated 12:1 differential combines motor drive and rear-wheel power distribution in one assembly. The title also lists wheels, hubs, axles, controller, pedal, wiring, key switch, batteries, and charger, which can simplify component gathering. Check the 43-inch axle against the chassis before planning the installation.

Skip it if you need a rear axle narrower than 43 inches; the listed 32-inch YC Yier kit is a better dimensional match to investigate.

A DIY builder seeking a broad component package for a 60V go-kart, ATV, or buggy conversion should consider this kit. Its batteries and charger are listed, but the 43-inch axle still has to suit the frame.

Listed on Amazon as: Complete 60V 2500W Electric Drive Axle Kit – 43" Rear Differential with Brushless Motor, Controller, Batteries & Wheels for Go Kart, ATV, Buggy DIY Conversion

#2 · Best 32-Inch Kit

2. ICONSPORTSS 32-Inch Kit

Best for: 32-inch 60V axle conversions.

Why it ranks #2: The 60V 2500W motor, 12:1 differential, 32-inch axle, brake discs, and 4-stud hubs make a substantial, clearly specified drive package.

A 32-inch, 25mm axle with a 6-tooth spline gives the ICONSPORTSS kit a clearly specified fit profile for 60V electric vehicle projects. Its 2500W brushless motor and 12:1 differential target go-karts, ATVs, buggies, and similar builds, with brake discs and four-stud hubs also listed.

The 810mm axle length and 25mm diameter let builders compare this assembly directly with chassis, hub, and drivetrain requirements. A 6-tooth spline specifies the drive connection, while the 12:1 differential works with the 60V 2500W brushless motor, rated at 5000 RPM and 400N.m torque. The kit also lists brake discs and four-stud wheel hubs, reducing the number of axle-side components to source separately. Its 32-inch span remains the key fit check.

Skip it if you need a 40-inch rear axle; the Kemblawolf kit lists that longer shaft for a wider-span build.

A builder matching a 32-inch chassis span and 6-tooth spline can use this as a defined 60V axle-and-motor package. Brake discs and hubs are listed, but the stated axle width and connection details govern fit.

Listed on Amazon as: 32in Rear Differential Axle Kit for Electric Vehicles, Go Kart, Golf Cart, ATV, Quad, Buggy, Trikes – Includes 60V 2500W Brushless Motor, Controller, Brake Discs, and 4-Stud Wheel Hubs

#3

3. YC Yier 32-Inch Kit

Best for: 32-inch axle project builders.

Why it ranks #3: Its 32-inch axle, 60V brushless motor, 12:1 differential, and stated 1500-pound maximum load suit builders seeking a compact, high-output assembly.

A 32-inch axle width is the defining fit detail of this YC Yier kit, making it a candidate for builds that need a more compact rear span. The listed 60V brushless motor, differential, and 12:1 gearing give DIY go-kart and buggy builders a matched axle-and-drive starting point.

The specifications list a 25mm axle with a 6-tooth spline, a 190mm disc rotor, and 110mm four-stud hub bolt spacing. Those measurements help builders compare the assembly with their wheel and brake arrangement before committing to a build. The motor is listed at 2500W, with 5000 RPM rated speed and 6000 RPM maximum speed, while the 12:1 differential supplies the reduction between motor and axle. Confirm the 32-inch width suits the chassis.

Skip it if you need a 34-inch axle span; the CWTD 34-inch kit is the more direct listed size to compare.

This kit suits a DIY builder whose frame and wheel hardware match its 32-inch span, 6-tooth spline, and four-stud hub dimensions. Its listed motor and differential form a useful starting point, but fit depends on those measurements.

Listed on Amazon as: 32" Rear Axle Kit with 60V 3000W DC Brushless Motor Differential Controller For DIY Project Electric Vehicle ATV UTV Quad Buggy Mini Bike Trike Racing Golf Cart Go Kart 6000RPM, 400Nm Torque

#4 · Best Speed Controls

4. ICONSPORTSS 30-Inch Kit

Best for: Selectable-speed 48V builds.

Why it ranks #4: The 48V 1000W package lists a controller, wiring, throttle pedal, brake switch, and three selectable speed settings from 10 to 20 mph.

Three selectable speed settings—listed at 20, 16, and 10mph—make this ICONSPORTSS kit useful for builders who want operating-speed choices in a 48V conversion. Its 1000W brushless differential motor, 30-inch axle, and 6-inch wheels form a bundled starting point for go-karts, ATVs, and trikes.

The high, medium, and low settings let a builder choose among the listed speed levels for different operating needs. The package also lists a speed controller, wiring harness, ignition key switch, three-speed switch, throttle pedal, brake switch, charging port, and terminal, bringing key electrical controls into the build. The 30-inch rear axle and 6-inch wheels give the assembly a specific size profile. Compare those dimensions with the frame and wheel setup before fitting.

Skip it if you need a 34-inch axle and snow-sand tracks; the CWTD kit lists both for that kind of build.

This kit suits a builder who values three selectable speeds and a listed set of electrical controls for a 48V go-kart, ATV, or trike. Its 30-inch axle and 6-inch wheels remain essential fit considerations.

Listed on Amazon as: 30" Rear Axle Kit 48V 1000W Electric Differential Motor 6" Wheels For DIY Go kart Golf Cart ATV Quad Motorcycle

#5

5. WPHMOTO 48V Complete Kit

Best for: 48V go-kart conversion builders.

Why it ranks #5: This 30-inch, 48V 1000W kit includes tires, controller, brakes, throttle, and switches, with a 9.5:1 differential for paired-wheel turning.

A 9.5:1 differential gearbox lets this WPHMOTO kit turn its two rear wheels at different speeds, a practical feature for go-kart and ATV builders seeking smoother cornering. The 48V 1000W brushless motor comes with a 30-inch axle, tires, brakes, controller, throttle, and switches.

The 30-inch axle and included 145/70-6 tires give builders concrete dimensions to compare with a compact chassis and wheel setup. Its 48V 32A controller is paired with a foot throttle, brake switch, ignition key, forward/reverse control, and three-speed switches, bringing several operating controls into the kit. The 9.5:1 differential allows the rear wheels to rotate at different speeds in a turn. Check chassis and wheel compatibility before installation.

Skip it if you need a longer rear span; the 34-inch CWTD kit offers a listed axle size better suited to that requirement.

A builder assembling a compact 48V go-kart or ATV and wanting tires, brakes, controls, and a differential in the package may find this configuration useful. Its 30-inch axle and 6-inch wheels are important fit boundaries.

Listed on Amazon as: 48V 1000W Brushless Differential Motor Gearbox Axle Kit for Go Kart ATV

#6 · Best Track Package

6. CWTD 34-Inch Track Kit

Best for: Snow and sand track conversions.

Why it ranks #6: Its 34-inch axle and 48V 1000W motor are supplied with snow/sand tracks, LCD, throttle, brake, controller, and wiring.

Included snow-and-sand tracks distinguish this CWTD kit, offering a traction-oriented option for off-road builds intended for those surfaces. The 48V 1000W brushless motor, 34-inch differential axle, LCD, throttle, brake, controller, and wiring kit provide a bundled starting point for go-kart, golf-cart, or buggy conversions.

The 34-inch chrome axle is listed to support over 500lbs, giving builders a stated load figure to weigh against their vehicle plans. A 9.5:1 reduction pairs with the 1000W motor, which is rated at 3900 RPM and reaches a listed maximum of 4800 RPM. The three-speed mode offers selectable power control, while the LCD and included controls provide an operating interface. The tracks make the package especially relevant where snow or sand traction matters.

Skip it if you want a 32-inch axle rather than 34 inches; the ICONSPORTSS kit lists the shorter span for comparison.

Choose this configuration if your off-road conversion calls for the included tracks and your chassis accepts a 34-inch axle. Its 1000W motor and controls suit a bundled build, while the listed surface-specific traction focus is the key use-case boundary.

Listed on Amazon as: Complete 34" Rear Axle Differential Kit with 48V 1000W Motor + LCD + Tracks + Controller for ATV, Golf Cart, Go Kart, Buggies

#7

7. LenvraSQ 72V Kit

Best for: 72V 34-inch axle builders.

Why it ranks #7: The 72V 1500W powertrain and 34-inch differential axle offer an alternative voltage and axle length for compatible utility and recreational builds.

A 72V 1500W brushless power system sets this LenvraSQ kit apart for builders planning a higher-voltage DIY conversion. Its 34-inch differential axle assembly is intended for go-karts, golf carts, ATVs, and utility vehicles, with differential action aimed at smoother power distribution through turns.

The 72V motor-and-controller combination gives builders a defined electrical system around which to plan a compatible vehicle conversion. Its 34-inch gear-driven differential axle is described as distributing power smoothly during turns and helping prevent wheel hop, which matters when selecting a rear drive for varied terrain. The listed vehicle types include go-karts, golf carts, ATVs, and utility vehicles. The supplied component details identify an axle kit, so verify the full build’s other electrical and mounting needs separately.

Skip it if you need batteries and operating controls included; the 91.SCS kit lists batteries, charger, pedal, and key switch.

This is a candidate for a builder planning a 72V, 1500W conversion around a 34-inch axle and differential. Its described vehicle range is broad, but the supplied component listing identifies an axle kit rather than a full battery-and-controls package.

Listed on Amazon as: 72V 1500W High-Performance Electric Powertrain Kit | Complete Differential Axle, Motor & Controller Set | DIY Conversion for Go Kart, Golf Cart, ATV & Utility Vehicles (34" Axle)

#8

8. Wilfongkart 40-Inch Kit

Best for: 40-inch 72V replacement builds.

Why it ranks #8: Its 72V 1500W brushless motor, 40-inch axle, differential, brake rotor, and hubs suit builders who need a longer rear assembly.

A 40-inch, 1020mm axle paired with a 72V 1500W brushless motor defines this Wilfongkart kit for longer-span electric vehicle projects. Its listed differential gearbox, brake disc rotor, and wheel hubs offer builders a rear-assembly starting point for go-karts, UTVs, drift trikes, and other stated vehicle types.

The 9.5:1 differential gearbox and 16-tooth specification give builders key drivetrain details to match against a custom conversion. The motor is listed at 4800 RPM, and the assembly includes a brake disc rotor and wheel hubs, bringing several rear-drive elements together. The stated compatibility spans go-karts, ATVs, UTVs, golf carts, buggies, and more. Check the 40-inch axle span and 16-tooth connection against the chassis and drivetrain before installation.

Skip it if you have a compact chassis requiring a 30-inch axle; the WPHMOTO kit lists that shorter size.

Consider this assembly for a 72V DIY conversion needing a 40-inch rear span, differential gearbox, hubs, and brake rotor. Its broad listed vehicle compatibility does not replace checking chassis width and the 16-tooth drive connection.

Listed on Amazon as: 40" Go Kart Rear Axle Kit with DC 72V 1500W Electric Motor Differential Gearbox Assembly for Go Cart Tricycle ATV Drift Trike UTV Quad Bike Dune Buggy Snowmobile 4 Wheelers

#9

9. Kemblawolf 40-Inch Kit

Best for: 72V drift-trike axle projects.

Why it ranks #9: This 72V 1500W differential kit specifies a 40-inch axle and 4-stud hubs, but the listed package details are less extensive.

The 40-inch, 1020mm rear axle is the defining feature of this Kemblawolf assembly, giving builders a longer-span option for go-karts, ATVs, and drift trikes. Its 72V 1500W brushless differential motor and four-stud hubs add a specified powertrain and wheel-mounting arrangement to the package.

The 72V motor is listed at up to 4800 RPM, while the kit includes a rear axle shaft and dual rear half axles. That combination gives builders a complete rear-drive layout to plan around, rather than a motor alone. Four-stud hubs accommodate standard 4-lug wheels, making wheel selection easier when the existing or planned wheels match that pattern. The 40-inch axle is the main chassis constraint, so compare its span with the vehicle before installation.

Skip it if you need a 30-inch axle for a compact frame; the WPHMOTO kit lists that shorter length.

This assembly fits builders planning a longer rear span for a 72V go-kart, ATV, or drift-trike project. Its four-stud hubs suit 4-lug wheels, but the 40-inch axle must align with the chassis layout.

Listed on Amazon as: 72V 1500W Electric Brushless DC Differential Motor with 40" Rear Axle Shaft Kit and 4-Stud Wheel Hub for Go Kart ATV Quad Drift Trike Mini Bike Golf Cart Tricycle Buggy 4 Wheelers Rear Axle Assembly

#10

10. WPHMOTO 30-Inch Axle Kit

Best for: 48V 16-tooth axle projects.

Why it ranks #10: The 48V 1000W motor and 30-inch axle fit the category, but the listed package focuses on the motor and axle rather than complete controls.

A 16-tooth drive axle made from high-strength chrome is the defining connection detail of this WPHMOTO kit, which pairs it with a 48V 1000W brushless differential motor. The 30-inch axle assembly is listed for go-karts, golf carts, trikes, ATVs, and other compatible builds.

The 16-tooth axle and 9.5:1 gear ratio give builders two drivetrain details to compare with their planned motor and rear assembly. The axle is listed to support more than 500lbs, while the 48V motor is rated at 4800 RPM and 18–35A. The package lists a differential motor and two rear axles, keeping the basic drive components together. Its 30-inch length and 16-tooth connection make dimensional and drivetrain matching essential.

Skip it if you need a 6-tooth spline connection; the ICONSPORTSS 32-inch kit lists that axle pattern.

A builder seeking a 48V differential motor and 30-inch axle for a go-kart, trike, or ATV can consider this package. Match the 16-tooth drive connection and axle span to the planned vehicle before installation.

Listed on Amazon as: 30''/760mm Rear Axle Kit and 48V 1000W Brushless Electric Differential Motor for Go Kart Golf Cart ATV Trike