2021 Toyota 4Runner Drivetrains

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Essential Drivetrains for 2021 Toyota 4Runners

Dorman – Four Wheel Drive Axle Actuator Assembly (Part No.600-488)

Four Wheel Drive Axle Actuator Assembly

from

$448.99
This 4WD actuator directly replaces the original equipment part on specific vehicle applications. It is reverse engineered to reliably restore proper functionality.

Product Features:
  • Direct replacement – this 4WD axle actuator directly replaces the original equipment part on specific vehicle years, makes and models
  • Effective fix – installation addresses inoperative four-wheel drive caused by failed original actuator
  • Smart solution – delivers reliable fit and function for competitive price
  • Trustworthy quality – backed by team of designers and engineers in the United States
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Dorman – Wheel Bearing Hub Nut (Part No.926-263)

Wheel Bearing Hub Nut

from

$29.99
This spindle nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this spindle nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Yukon Gear – Spindle Nut Kit For Toyota Front (Part No.33513)

Spindle Nut Kit For Toyota Front

from

$24.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty. This gear uses 7/16″ ring gear bolts.

Product Features:
  • Spindle nut kit for Toyota front
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Yukon Gear – RngPnnKt (Part No.24707)

RngPnnKt

from

$359.99
RngPnnKt

Yukon Gear – High Performance Ring & Pinion Gear Set For Toyota 8" In A 5.29 Ratio (Part No.24624)

High Performance Ring & Pinion Gear Set For Toyota 8" In A 5.29 Ratio

from

$384.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Fits 1979-1985 Toyota Pickup and 4Runner and 1975-1990 Landcruiser
  • 5.29 ratio
  • 29 spline pinion
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Carquest Premium – CV Axle Shaft Assembly (Part No.NCV69170XD)

CV Axle Shaft Assembly

from

$222.99
Carquest Premium constant velocity (C.V.) axle shaft assemblies are 100% new units that are designed to meet or exceed OE specifications. Every part number is tested to guarantee a proper fit and reliable performance. Carquest Premium CV axles are assembled with a specially formulated high-temperature moly grease to resist friction and wear of the bearings and joints. Our strict engineering and quality specifications ensure a long-lasting repair that is guaranteed with an industry-leading warranty.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new axle and components
  • New axle nut or attaching hardware included when applicable
  • Bearings, races and housings are heat-treated for longer life
  • Precision-engineered seal mating surfaces for leak-free performance
  • High moly CV joint grease with stainless-steel boot bands
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Carquest Premium – CV Axle Shaft Assembly (Part No.NCV69073)

CV Axle Shaft Assembly

from

$159.99
Carquest Premium constant velocity (C.V.) axle shaft assemblies are 100% new units that are designed to meet or exceed OE specifications. Every part number is tested to guarantee a proper fit and reliable performance. Carquest Premium CV axles are assembled with a specially formulated high-temperature moly grease to resist friction and wear of the bearings and joints. Our strict engineering and quality specifications ensure a long-lasting repair that is guaranteed with an industry-leading warranty.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new axle and components
  • New axle nut or attaching hardware included when applicable
  • Bearings, races and housings are heat-treated for longer life
  • Precision-engineered seal mating surfaces for leak-free performance
  • High moly CV joint grease with stainless-steel boot bands
See More

Dorman – 4WD Transfer Case Motor Assembly (Part No.600-423)

4WD Transfer Case Motor Assembly

from

$1102.99
Transfer case stopped shifting between high and low ranges? Swap out a seized transfer case motor with this direct replacement. Designed to install and perform like the original motor, it uses a factory-style connector and is sealed for protection.

Product Features:
  • Direct replacement – this transfer case motor fits and performs like the original motor on certain vehicle applications
  • Durable construction – made with factory-style electrical connector and weathertight seal to prevent corrosion
  • 100% new – this transfer case motor is entirely new, not remanufactured like competitors
  • Quality assured – vehicle-specific application has been validation tested to ensure quality
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Dorman – 4WD Transfer Case Motor (Part No.600-493)

4WD Transfer Case Motor

from

$1190.00
Transfer case stopped shifting between high and low ranges? Swap out a seized transfer case motor with this direct replacement. Designed to install and perform like the original motor, it uses a factory-style connector and is sealed for protection.

Product Features:
  • Direct replacement – this transfer case motor fits and performs like the original motor on certain vehicle applications
  • Durable construction – made with factory-style electrical connector and weathertight seal to prevent corrosion
  • 100% new – this transfer case motor is entirely new, not remanufactured like competitors
  • Quality assured – vehicle-specific application has been validation tested to ensure quality
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Dorman – Pre-Pressed Axle (OE Fix) (Part No.926-138)

Pre-Pressed Axle (OE Fix)

from

$868.99
Replacing a worn wheel bearing usually requires a time-consuming procedure with a shop press. This Dorman OE FIX loaded axle includes all critical components already assembled for a fast, simple, safe install.

Product Features:
  • Easier installation – this loaded axle assembly includes a new axle shaft, wheel bearing, hub and backing plate pre-assembled and ready to install right out of the box
  • Time saver – eliminates frustrating, unpredictable work required to replace bearings without damaging other components
  • Simpler solution – eliminates the need to use potentially dangerous shop press to perform complete bearing repair
  • Quality tested – this part has undergone try-on, corrosion and material testing to ensure a quality fit and long service life
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Yukon Gear – T8 30 Spline Axle (24.64" – 29.08" Cut2Lth) 4340 – 106Mm Brake Pilot (Part No.21724)

T8 30 Spline Axle (24.64" - 29.08" Cut2Lth) 4340 - 106Mm Brake Pilot

from

$274.99
Yukon high-performance axles are built with high-tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature advanced induction coil heat treating to create an axle of unmatched quality and durability.

Product Features:
  • Fits 1979-2000 Toyota 8″ and V6 rear
  • 4340 Chromoly
  • 30 spline
  • 29 1/8″ long
  • Cut to length design fits 26.62″-29.26″ applications
  • 106mm brake pilot
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Dorman – Rear Axle Shaft (Part No.630-335A)

Rear Axle Shaft

from

$179.99
This axle shaft is designed to match the performance of the original equipment shaft on specified vehicle makes, models and years. When a factory axle shaft fails or is damaged by rust or collision, this replacement is engineered to help restore and ensure the proper transfer of torque and rotational power from the differential or transmission to the wheel.

Product Features:
  • Direct replacement – this axle shaft is designed to match the performance of the original equipment shaft on specified vehicle makes, models and years
  • Ideal solution – when a factory axle shaft fails, this replacement is engineered to help ensure proper transfer of torque and rotational power from the differential or transmission to the wheels
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Driveworks – Universal Joint (Part No.DW-387)

Universal Joint

from

$25.99
Driveworks Universal Joints are designed to meet or exceed OE fit, form, and function. These universal joints are set to provide superior quality and easy installation. Driveworks Universal Joints are constructed from quality materials for extended durability. Driveworks Universal Joints are pre-lubricated with premium grease to provide a longer service life. The grease fittings are pre-installed to allow for easy maintenance (where applicable).

Product Features:
  • The cross is hot forged for the higher torque and horsepower
  • The bearing cups are made by cold forging, having higher strength and better rigidity
  • Bearing cups allow 360 lubricant distribution to bearing surfaces, and are precision-ground for maximum load-carrying capabilities
  • Lubrication grooves are designed to ensure grease penetration to entire journal and needle bearings
  • Grease fitting in the cross allows for easy maintenance and the flexible use of the whole assembly
  • Snap rings are held to strict tolerances to ensure proper cup position and retention
  • Nitrile rubber seals to optimize grease retention and reduce contamination
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MOOG Driveline Products – Greaseable Super Strength Universal Joint (Part No.285)

Greaseable Super Strength Universal Joint

from

$42.99
Backed by superior materials and rigorous testing, MOOG Super Strength® universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST – Rugged design specifically engineered for applications with higher torque and horsepower
  • COMPREHENSIVE COVERAGE – Available for foreign and domestic nameplates
  • CORROSION PROTECTION – Exclusive MICRO SHIELD coating protects against rust and corrosion
  • GREASEABLE DESIGN – Bearing cups feature a radial design to allow 360 Degrees lubricant distribution to all bearing surfaces
  • KEEPS DIRT OUT – Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • STRONG AND DURABLE – Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability
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MOOG Driveline Products – Non-Greaseable Super Strength Universal Joint (Part No.287)

Non-Greaseable Super Strength Universal Joint

from

$31.49
Backed by superior materials and rigorous testing, MOOG Super Strength universal joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:
  • BUILT TO LAST – Rugged design specifically engineered for applications with higher torque and horsepower
  • COMPREHENSIVE COVERAGE – Available for foreign and domestic nameplates
  • CORROSION PROTECTION – Exclusive MICRO SHIELD coating protects against rust and corrosion
  • KEEPS DIRT OUT – Abrasion-resistant nitrile seals provide ideal grease retention and protection from under-vehicle contaminants
  • RIGOROUS TESTING – Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
  • STRONG AND DURABLE – Bearing cups are cold-forged, case-hardened and precision ground while steel cross is forged and carburized heat treated for strength and durability
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Yukon Gear – Bearing Kit for ’86 and Newer Toyota 8" Differential with OEM Ring & Pinion (Part No.11118)

Bearing Kit for '86 and Newer Toyota 8" Differential with OEM Ring & Pinion

from

$298.99
Yukon Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Master Overhaul Kit. This kit uses Timken bearings and races along with all high-quality small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to properly install your ring and pinion gear set.

Product Features:
  • Fits Toyota 8″ and 4 cylinder engine, 1986 and up with OEM ring and pinion set and air operated locker
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, marking compound and brush.
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Yukon Gear – Bearing Kit for Toyota 8.2" Rear with Factory Locker (Part No.11129)

Bearing Kit for Toyota 8.2" Rear with Factory Locker

from

$519.99
Yukon Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Master Overhaul Kit. This kit uses Timken bearings and races along with all high-quality small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to properly install your ring and pinion gear set.
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Yukon Gear – Master Overhaul Kit for Toyota Clamshell Diff Front Reverse Rotation (Part No.14130)

Master Overhaul Kit for Toyota Clamshell Diff Front Reverse Rotation

from

$649.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.

Product Features:
  • Included are Timken bearings and races along with high quality seals and small parts.
  • Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush, and silicone.
  • Fits Toyota 8″ clamshell front
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USA Standard Gear – Differential Rebuild Kit (Part No.37115)

Differential Rebuild Kit

from

$614.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits Toyota 8″ clamshell front
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, pinion nut, crush sleeve, thread locker, marking compound with brush and silicone.
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USA Standard Gear – Differential Bearing Kit (Part No.37076)

Differential Bearing Kit

from

$267.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits Toyota 8″ and 4 cylinder engine, 1985 and down or 1986 and up with aftermarket ring and pinion set
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve eliminator, thread locker, marking compound with brush and gasket.
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USA Standard Gear – Differential Rebuild Kit (Part No.37111)

Differential Rebuild Kit

from

$363.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits reverse rotation Toyota 7.5″
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, axle seals, complete shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles and slingers, thread locker, marking compound with brush and silicone.
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Yukon Gear – Pinion Depth Shim Kit for Toyota8", GM 7.5", 8.2" & 12 Bolt Truck (Part No.55064)

Pinion Depth Shim Kit for Toyota8", GM 7.5", 8.2" & 12 Bolt Truck

from

$39.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Pinion depth shim kit for Toyota 7.5″, 8″ and V6
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Yukon Gear – Solid Preload Kit for Toyota Landcruiser (Part No.55065)

Solid Preload Kit for Toyota Landcruiser

from

$30.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.

Product Features:
  • Preload shim kit
  • Fits 9.5″ Toyota Landcruiser
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Motive Gear – Differential Pinion Shim Kit (Part No.1109)

Differential Pinion Shim Kit

from

$13.49


Product Features:
  • KIT SHIM TOYO TRK 79-92 REAR/89-92 FRONT
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Yukon Gear – Redline Synthetic "Shock Proof" Oil with Positraction Additive – 4 Quarts (Part No.15005)

Redline Synthetic "Shock Proof" Oil with Positraction Additive - 4 Quarts

from

$148.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection. This kit includes four quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive
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Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON, GM DEXRON-II and DEXRON-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III, Toyota/Lexus Type T, T-III and T-IV, Honda/Acura ATF-Z1 (except in CVTs), Mercedes Benz NAG1, Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart (Part No.VV820)

High Performance Transmission & Differential Gear Oil: Conventional 75W-90, 1 Quart

from

$12.99
Valvoline High Performance Synthetic Gear Oil is the thermally stabile extreme pressure lubricant that offers outstanding protection for gearboxes and differentials in passenger cars, light trucks, and sport utility vehicles. Combined with high quality synthetic base oils, our formula’s superior additives help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions. Can be used in conventional and limited slip hypoid differentials where GL-5 is specified as well as non-synchronized manual transmissions that require GL-4. Protect your gears with Valvoline, the #1 gear oil brand.

Product Features:
  • HIGH PERFORMANCE EXTREME-PRESSURE ADDITIVES HELP MINIMIZE WEAR in high pressure and high temperature conditions
  • EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION can easily handle both winter and summer conditions for dependable coverage and protection year-round
  • REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
  • FIGHTS CORROSION AND RUST with emulsifying agents and safeguards against impurities, oxidation and thermal breakdown
  • SUPERIOR ADDITIVES help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions
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Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil with Posi Additive (Part No.15003)

3 Qt - 80W90 Conventional Gear Oil with Posi Additive

from

$57.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials. This kit includes three quarts of oil and a bottle of Yukon Limited Slip Friction modifier that reduces noise and chatter in clutch driven positraction units and limited slip differentials.

Product Features:
  • Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive
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Upgrade your 2021 Toyota 4Runner with Top-Quality Drivetrains

When it comes to maintaining or upgrading your 2021 Toyota 4Runner, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Toyota or enhancing its overall performance, Drivetrains are key to keeping your 4Runner functioning at its best. At Advance Auto Parts, we offer a wide selection of 24 Drivetrains for the 2021 Toyota 4Runner, designed to meet your needs without breaking the bank. From 4WD Component replacements to Drive Shafts and Axles upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Drivetrains for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Drivetrains for your 2021 Toyota 4Runner at great prices. Our Drivetrains inventory for this model ranges from just $12.49 to $1,190.00, with an average price of $464.30. Our 24 Drivetrains in stock come from 8 trusted brands, so you’re sure to find the right part for your 2021 Toyota 4Runner without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2021 Toyota 4Runner, we stock popular OEM and aftermarket Drivetrains from top names like Valvoline, and more. Valvoline Drivetrains start at just $12.49 and boast an impressive 4.8 stars average rating from customers. With 1,968 customer reviews and counting, our 2021 Toyota 4Runner Drivetrains have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Drivetrain upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 Toyota 4Runner is always ready to roll. We’re committed to providing you with everything you need to keep your 4Runner in top shape, all in one place. Start shopping confidently below for your 2021 Toyota 4Runner!

Best-Selling 4WD Components for 2021 Toyota 4Runners

Enhance the driving experience in your Toyota with 1 quality 4WD Component components, starting at $448.99.

Dorman – Four Wheel Drive Axle Actuator Assembly (Part No.600-488)

Four Wheel Drive Axle Actuator Assembly

from

$448.99
This 4WD actuator directly replaces the original equipment part on specific vehicle applications. It is reverse engineered to reliably restore proper functionality.

Product Features:
  • Direct replacement – this 4WD axle actuator directly replaces the original equipment part on specific vehicle years, makes and models
  • Effective fix – installation addresses inoperative four-wheel drive caused by failed original actuator
  • Smart solution – delivers reliable fit and function for competitive price
  • Trustworthy quality – backed by team of designers and engineers in the United States
See More

Most Popular 2021 Toyota 4Runner Drive Shafts and Axles

Customize your Toyota with 2 Drive Shafts and Axles products like Drive Shaft and Axles, all priced under $222.99.

Carquest Premium – New CV Axle Shaft Assembly (Part No.NCV69170)

New CV Axle Shaft Assembly

from

$164.99
Carquest Premium constant velocity (C.V.) axle shaft assemblies are 100% new units that are designed to meet or exceed OE specifications. Every part number is tested to guarantee a proper fit and reliable performance. Carquest Premium CV axles are assembled with a specially formulated high-temperature moly grease to resist friction and wear of the bearings and joints. Our strict engineering and quality specifications ensure a long-lasting repair that is guaranteed with an industry-leading warranty.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new axle and components
  • New axle nut or attaching hardware included when applicable
  • Bearings, races and housings are heat-treated for longer life
  • Precision-engineered seal mating surfaces for leak-free performance
  • High moly CV joint grease with stainless-steel boot bands
See More

Carquest Premium – CV Axle Shaft Assembly (Part No.NCV69170XD)

CV Axle Shaft Assembly

from

$222.99
Carquest Premium constant velocity (C.V.) axle shaft assemblies are 100% new units that are designed to meet or exceed OE specifications. Every part number is tested to guarantee a proper fit and reliable performance. Carquest Premium CV axles are assembled with a specially formulated high-temperature moly grease to resist friction and wear of the bearings and joints. Our strict engineering and quality specifications ensure a long-lasting repair that is guaranteed with an industry-leading warranty.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new axle and components
  • New axle nut or attaching hardware included when applicable
  • Bearings, races and housings are heat-treated for longer life
  • Precision-engineered seal mating surfaces for leak-free performance
  • High moly CV joint grease with stainless-steel boot bands
See More

Top Picks for 2021 Toyota 4Runner Differentials

Upgrade Toyota 4Runners with top-quality Differentials parts, including 17 OEM and aftermarket selections for your 2021 model.

Valvoline – MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.VV324)

MaxLife Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$12.49
Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the No. 1 ATF product, suitable for use in 95% of vehicles. And now, it’s recommended for most belt & chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it’s designed to help prevent leaks, reduce wear & tear, and maximize performance. Has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Valv MaxLife Multi-Vehicle ATF is suitable for most Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW & Audi vehicles. Recommended for use in: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC; Honda/Acura ATF-Z1 and Honda CVT; Nissan/Infiniti Matic-D, Matic-J, Matic-K and Matic-S; Hyundai/Kia SP-II, SP-III, SP-IV and SPH-IV; BMW 7045E, ETL 8072B, LA2634 and LT71141; Allison C-4; Mercedes-Benz NAG-1; Volvo 1161521, 1161540, 97340 and 1273.41; Subaru ATF HP, Lineartronic chain CVT and CVT-II, Lineartronic High Torque CVT, and CV-30; and VW/Audi G-052-025-A2 and G-052-162-A1. CURRENTLY UNABLE TO SHIP THIS PRODUCT TO CUSTOMERS LOCATED IN CALIFORNIA

Product Features:
  • FOR USE IN 95% OF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
  • HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
  • IMPROVED DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
  • ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations
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Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.99
Valvoline Import Multi-Vehicle Automatic Transmission Fluid is specifically formulated for use in most Toyota, Nissan, Honda and other imported vehicles. It is formulated with all synthetic base stocks and a proprietary additive system to ensure optimal transmission performance in a wide variety of vehicles. Valvoline Import Multi-Vehicle ATF can also be used in many domestic vehicles. It meets requirements of General Motors and Ford vehicles. Recommended for use in the following applications: Ford MERCON, GM DEXRON-II and DEXRON-III, BMW LT 71141 and ETL-7045E, Nissan/Infiniti Nissan ATF, Matic-D, Matic-K and Matic-J, Mitsubishi Diamond SP-II and SP-III, Subaru ATF-HP, Hyundai/ KIA SP-II and SP-III, Toyota/Lexus Type T, T-III and T-IV, Honda/Acura ATF-Z1 (except in CVTs), Mercedes Benz NAG1, Volvo passenger car (except AW-1), and Volkswagen/Audi TL52162. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
See More

Idemitsu – Type TLS-LV Automatic Transmission Fluid, 1 Quart (Part No.10114-042B)

Type TLS-LV Automatic Transmission Fluid, 1 Quart

from

$12.79
Formulated to meet the specific requirements of Toyota, Lexus, and Scion vehicles equipped with conventional (non-CVT) transmissions that require the use of Toyota ATF WS. Recommended for service-fill in all Toyota, Lexus, and Scion automatic transmissions where ATF WS is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. Idemitsu is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. Idemitsu application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made.

Product Features:
  • Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
  • Optimized viscosity and advanced friction reducing additive technology provide exceptional fuel economy performance
  • Precisely engineered frictional characteristics guarantee smooth shifting and outstanding anti-shudder performance
  • Exceptional wear protection of gears and bearings
  • Provides superior deposit control and protects metal surfaces from rust and corrosion
  • Excellent seal compatibility and conditioning reduces risk of fluid leaks due to seal shrinkage, hardening and cracking
  • Optimized viscosity and advanced friction reducing additive technology provide exceptional fuel economy performance
  • Excellent resistance to oxidation and thermal breakdown provide long fluid life and extended protection
  • Exceptional wear protection of gears and bearings
  • Provides superior deposit control and protects metal surfaces from rust and corrosion
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Motive Gear – Differential Pinion Shim Kit (Part No.1109)

Differential Pinion Shim Kit

from

$13.49


Product Features:
  • KIT SHIM TOYO TRK 79-92 REAR/89-92 FRONT
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Dorman – Pre-Pressed Axle (OE Fix) (Part No.926-137)

Pre-Pressed Axle (OE Fix)

from

$869.99
Replacing a worn wheel bearing usually requires a time-consuming procedure with a shop press. This Dorman OE FIX loaded axle includes all critical components already assembled for a fast, simple, safe install.

Product Features:
  • Easier installation – this loaded axle assembly includes a new axle shaft, wheel bearing, hub and backing plate pre-assembled and ready to install right out of the box
  • Time saver – eliminates frustrating, unpredictable work required to replace bearings without damaging other components
  • Simpler solution – eliminates the need to use potentially dangerous shop press to perform complete bearing repair
  • Quality tested – this part has undergone try-on, corrosion and material testing to ensure a quality fit and long service life
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Dorman – Pre-Pressed Axle (OE Fix) (Part No.926-138)

Pre-Pressed Axle (OE Fix)

from

$868.99
Replacing a worn wheel bearing usually requires a time-consuming procedure with a shop press. This Dorman OE FIX loaded axle includes all critical components already assembled for a fast, simple, safe install.

Product Features:
  • Easier installation – this loaded axle assembly includes a new axle shaft, wheel bearing, hub and backing plate pre-assembled and ready to install right out of the box
  • Time saver – eliminates frustrating, unpredictable work required to replace bearings without damaging other components
  • Simpler solution – eliminates the need to use potentially dangerous shop press to perform complete bearing repair
  • Quality tested – this part has undergone try-on, corrosion and material testing to ensure a quality fit and long service life
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Yukon Gear – Master Overhaul Kit for Toyota Clamshell Diff Front Reverse Rotation (Part No.14130)

Master Overhaul Kit for Toyota Clamshell Diff Front Reverse Rotation

from

$649.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.

Product Features:
  • Included are Timken bearings and races along with high quality seals and small parts.
  • Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve, thread locker, marking compound with brush, and silicone.
  • Fits Toyota 8″ clamshell front
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USA Standard Gear – Differential Rebuild Kit (Part No.37115)

Differential Rebuild Kit

from

$614.99
USA Standard Master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), threading locking compound, marking compound with brush and gasket.

Product Features:
  • Fits Toyota 8″ clamshell front
  • Uses Koyo bearings and races
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, pinion nut, crush sleeve, thread locker, marking compound with brush and silicone.
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Yukon Gear – Ring and Pinion Kit (Part No.24554)

Ring and Pinion Kit

from

$569.99
Ring and Pinion Kit

Yukon Gear – Bearing Install Kit for New Toyota Clamshell Reverse Rotation Front Diff (Part No.11108)

Bearing Install Kit for New Toyota Clamshell Reverse Rotation Front Diff

from

$569.99
Yukon Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Master Overhaul Kit. This kit uses Timken bearings and races along with all high-quality small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to properly install your ring and pinion gear set.

Product Features:
  • Fits Toyota 8″ clamshell front
  • Reverse rotation only
  • Included are carrier bearings and races, pinion bearings and races, pinion seal, crush sleeve, marking compound and brush.
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Yukon Gear – Ring and Pinion Kit (Part No.24681)

Ring and Pinion Kit

from

$544.99
Ring and Pinion Kit

Yukon Gear – Ring and Pinion Kit (Part No.24680)

Ring and Pinion Kit

from

$544.99
Ring and Pinion Kit

Yukon Gear – Ring and Pinion Kit (Part No.24682)

Ring and Pinion Kit

from

$544.99
Ring and Pinion Kit

Yukon Gear – High Performance Ring & Pinion Gear Set For Toyota FJ Cruiser Front, 4.56 Ratio, Thick (Part No.24635)

High Performance Ring & Pinion Gear Set For Toyota FJ Cruiser Front, 4.56 Ratio, Thick

from

$529.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Rear axle stud
  • 9/16″ x 18 thread
  • 2 29/32″ long
  • 0.625″ knurl diameter
  • 23/32″ shoulder length
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Yukon Gear – High Performance Ring & Pinion Gear Set For Toyota FJ Cruiser Front, 4.88 Ratio, Thick (Part No.24565)

High Performance Ring & Pinion Gear Set For Toyota FJ Cruiser Front, 4.88 Ratio, Thick

from

$524.99
Yukon Ring & Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions. Whether it’s on the street, off-road, or at the track; Yukon ring & pinion sets deliver unrivaled performance & quality. This is a thick gear for a 3.73 & down carrier. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. All Yukon ring & pinion sets come standard with a one-year warranty.

Product Features:
  • Fits 8″ Toyota clamshell front
  • 8.00″ ring gear diameter
  • 29 spline pinion
  • 10 ring gear bolts
  • 4.88 ratio
  • Thick gear for 3.73 and down carrier
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Yukon Gear – RngPnnKt (Part No.24677)

RngPnnKt

from

$468.99
RngPnnKt

Yukon Gear – RngPnnKt (Part No.24679)

RngPnnKt

from

$454.99
RngPnnKt

In-Demand Transfer Cases for 2021 Toyota 4Runners

Select from 2 premium Transfer Cases parts for your 2021 Toyota 4Runner, with prices ranging from $1,102.99 to $1,190.00.

Dorman – 4WD Transfer Case Motor (Part No.600-493)

4WD Transfer Case Motor

from

$1190.00
Transfer case stopped shifting between high and low ranges? Swap out a seized transfer case motor with this direct replacement. Designed to install and perform like the original motor, it uses a factory-style connector and is sealed for protection.

Product Features:
  • Direct replacement – this transfer case motor fits and performs like the original motor on certain vehicle applications
  • Durable construction – made with factory-style electrical connector and weathertight seal to prevent corrosion
  • 100% new – this transfer case motor is entirely new, not remanufactured like competitors
  • Quality assured – vehicle-specific application has been validation tested to ensure quality
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Dorman – 4WD Transfer Case Motor Assembly (Part No.600-423)

4WD Transfer Case Motor Assembly

from

$1102.99
Transfer case stopped shifting between high and low ranges? Swap out a seized transfer case motor with this direct replacement. Designed to install and perform like the original motor, it uses a factory-style connector and is sealed for protection.

Product Features:
  • Direct replacement – this transfer case motor fits and performs like the original motor on certain vehicle applications
  • Durable construction – made with factory-style electrical connector and weathertight seal to prevent corrosion
  • 100% new – this transfer case motor is entirely new, not remanufactured like competitors
  • Quality assured – vehicle-specific application has been validation tested to ensure quality
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Most Sold 2021 Toyota 4Runner Universal Joints

Explore our best-selling Toyota parts for the 2021 4Runner among 1 OEM and aftermarket options starting from $62.99.

Spicer – Universal Joint, Greaseable Toyota Series ISR (Part No.5-1510X)

Universal Joint, Greaseable Toyota Series ISR

from

$62.99
When you see the Spicer name, you know you are buying the highest quality product available. Spicer universal joints are no exception. Dana manufactures a full line of Spicer universal joints that are engineered to ensure longer life for vehicles in a wide variety of applications, from light vehicle to commercial and off-highway.

Product Features:
  • OE engineering and field tested experience is why the Spicer brand is the most trusted in the industry.
  • Forged with high-quality steel, these u-joints are heat treated and case-hardened with precision to specific levels, ensuring optimal strength and durability.
  • The process of precision grinding the seal and bearing surfaces helps to improve the life of the seal and bearing.
  • Zerk allows for lubricating at regular intervals to help extend the life of the part.
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Top-Rated Drivetrains Brands For Your 2021 Toyota 4Runner

Shop for the best-rated brands offering Drivetrains and other products for your 2021 Toyota 4Runners. Below you’ll find some of our best rated Drivetrains from Valvoline, and more. Drivetrains from these brands that fit a 2021 4Runner start at just $12.49 and are rated as high as 4.8 stars. OEM and aftermarket Drivetrains don’t get more top quality, durable, and affordable than from the brands below.

Popular Valvoline 2021 Toyota 4Runner Drivetrains

When it comes to maintaining or upgrading your 2021 Toyota 4Runner, using quality Drivetrains is essential to ensure durability and a perfect fit. Valvoline ticks all of those boxes. We offer a wide selection of Valvoline Drivetrains, specifically designed for the 2021 Toyota 4Runner. With over 2 Valvoline brand Drivetrains in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $12.49, with an average price of just $13.74. Plus, with over 454 customer reviews and an average rating of 4.8 stars, you can trust that our Valvoline Drivetrains will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart
from $14.99
(8)
Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart
“My 1999 Honda Accord 4-cylinder has over 250K miles and a drain and fill takes exactly 3 quarts of Import ATF. I do this with every oil change. No pro”

FAQs for 2021 Toyota 4Runner Drivetrains

Which Drivetrains are best-sellers for 2021 Toyota 4Runners?

Out of 24 Drivetrains that fit 2021 Toyota 4Runners, the following parts are the top sellers:

What’s the price range for 2021 Toyota 4Runner Drivetrains?

Drivetrain prices for the 2021 Toyota 4Runner start at $12.49 and go up to $1,190.00 for the most premium parts.

What’s the average price of a Drivetrain for a 2021 Toyota 4Runner?

The average price for Drivetrains for the 2021 Toyota 4Runner is $464.30. Keep in mind the variety of part types within our Drivetrain category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Drivetrains for other Toyota 4Runner model years?

Yes, we currently carry Drivetrains for 42 model years of Toyota 4Runners between 1984 and 2027. Drivetrains are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Drivetrains for my 2021 Toyota 4Runner?

The cheapest 2021 Toyota 4Runner Drivetrains we carry in stock are:

What types of Drivetrains do you sell for my 2021 Toyota 4Runner?

As of 6/2/26, these are some of the most in-demand types of Drivetrains for a 2021 Toyota 4Runner:

Can I get help with 2021 Toyota 4Runner Drivetrain orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Toyota Drivetrains and more.

What is your return policy for Toyota 4Runner Drivetrains?

Advance Auto Parts keeps returns simple. For new Toyota 4Runner Drivetrains and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.