1999 Toyota 4Runner Differentials

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1999 Toyota 4Runner in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1999 Toyota 4Runner looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Oil, Differential Covers, and Differential Pinion Seals. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Differentials from Trusted Brands

Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Valvoline and National. For example, Valvoline Differentials start at just $12.99 with an average 4.8 star rating. National offer similar pricing and quality, backed by strong customer feedback. With over 1,384 reviews and a solid 5 star average, you can shop with confidence knowing other Toyota 4Runner owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 Toyota 4Runner Differential at Advance Auto Parts is around $245.11, with a range that starts at $5.99 and goes up to $1,566.99. With 130 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like 3 Qt – 80W90 Conventional Gear Oil With Posi Additive, 3 Qt – Penzoil 80W90 Conventional Gear Oil, and Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts start at just $44.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Differential, don’t forget to check out other key components like 4WD Components and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 1999 Toyota 4Runner in peak condition, inside and out.

Looking for the perfect Differential for your 1999 Toyota 4Runner? You’re in the right place. Below, you’ll find links to various types of Differentials that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Differentials, ensuring durability and a precise fit for your Toyota 4Runner. Whether you’re driving a 1999 model or another popular model year like 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.

Essential 1999 Toyota 4Runner Differentials

from

$8.99

Product Features:

Side adjuster lock bolt
Fits Toyota 8″ 4 or 6 cylinder engine

from

$89.99

Product Features:

CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS: Precision manufactured using high-quality materials for durability and performance
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

from

$959.99

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

Fits Toyota 8″ with 4 cylinder engine
Patented internal design reduces common locker failures
8620 internals for added strength
Assembled in the USA

from

$49.99

8″ Toyota Spartan locker cross pin.

Product Features:

USA Standard Gear heavy-duty short cross pin shaft
Fits Toyota 8″ with 4 cylinder engine
Works with Spartan Locker or standard open spider gears

from

$7.99

Oil baffle for Toyota Landcruiser reverse rotation front, 8″ IFS front & TV6/Tacoma rear with factory locker.

Product Features:

Oil baffle
Fits Toyota Landcruiser reverse rotation front

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$73.99

Differential Crush S

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$78.99

Product Features:

Seal housing for Toyota 8″ and V6
Includes o-rings

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$276.99

Yukon small hole yoke for ’82 and older Toyota T100 and Tacoma (with locker) with 27 spline pinion. All Yukon yokes come with a one year warranty against manufacturing defects.

Product Features:

Fits Toyota Tacoma and T100 with factory locking differential
27 spline

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$11.99

Product Features:

Side adjuster lock
Fits Toyota 8″ with 4 cylinder engine

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$404.99

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
4.88 ratio
29 spline pinion
Includes conversion yoke, seal, and pinion nut

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$6.99

Product Features:

PIN. NUT TOYOTA FRT&REAR

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$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

from

$6.99

Toyota 7.5″, 8″, & V6 ring gear bolt retainer plate (5 needed).

Product Features:

Ring gear bolt retainer plate for Toyota 7.5″ 8″ and 8″ V6
5 needed

from

$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

from

$188.99

Bearing race driver for rear Toyota V6, Landcruiser reverse rotation, and Tacoma with locker. (TOY35028). No return.

Product Features:

Bearing race driver
Fits 35028 race
All steel construction

from

$78.99

When the thin-gauge steel corrodes on 4Runner and Tacoma truck rear differential covers, the typical solution has been to replace the entire axle. This Dorman OE FIX weld-on solution allows direct replacement of only the failed cover.

Product Features:

Direct replacement – this weld-on differential cover directly replaces a corroded original cover on certain Toyota 4Runner and Tacoma trucks
Cost-effective repair – rather than buy a new axle, cut off the old cover and weld on this new one
Greater durability – constructed from heavier-gauge stamped steel than the original cover
Ready to install – pre-primed in weldable primer for a clean installation

from

$101.99

7.5″ V6 & 4cyl side shim kit (incl. 7 shims).

Product Features:

Carrier shim kit
Fits Toyota 7.5″

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$468.99

RngPnnKt

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$11.99

With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.

Product Features:

High-precision and High-quality components used in all KITs
Coverage of classic and new high-tech solutions for the best system coverage

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$782.99

Differential

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$622.99

OE Manufactured Direct Replacement Shift and Lock Actuators Control the Vehicle 2WD to 4WD, 4WD High to Low, and/or Differential Lock Function.

Product Features:

Actuators control the vehicle 2WD to 4WD, 4WD High to Low, and/or differential lock function.

from

$289.99

Differential Pinion

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$323.99

The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.

Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.

Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.

Powertrax® = Extreme Traction Systems!

from

$271.99

Product Features:

Full spool
Fits Toyota V6 rear

from

$11.99

Toyota 8″ & V6 gasket.

Product Features:

Dropout gasket
Fits Toyota 8″ and V6

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$18.99

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

Design type: spring loaded; multi-lip
Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
Resistance to EP lubricants
Low swell in hydrocarbon fluids
Delivers quality and reliable performance for every type of repair

from

$7.99

8″ standard Open pinion gear Thrust washer.

Product Features:

Pinion gear thrust washer
Fits Toyota 8″ with 4 cylinder engine

from

$11.99

8″ standard Open side gear Thrust washer.

Product Features:

Side gear thrust washer
Fits Toyota 8″ with 4 cylinder engine

Popular 1999 Toyota 4Runner Differentials Categories

Differential Oil

Differential Lock Actuators

Differential Covers

Differential Bearings

Differential Axle Shafts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Ring and Pinions

Differential Cases

Differential End Yokes

Differential Lock Assemblies

Differential Air System Seal Housings

Differential Spools

Differential Carrier Bearing Adjusters

Front Differential Cover Gaskets

Differential Pinion Bearing Kits

Differential Seals

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

Pinion Shaft Seals

Differential Side Bearing Spacers

Differential Pinion Shims

Differential Pinion Shaft Nuts

Differential Cross Pins

Differential Side Gear Thrust Washers

Differential Pinion Bearing Baffles

Differential Pinion Gear Thrust Washers

Differential Ring and Pinion Kits

Limited Slip Differential Assemblies

Most Popular Differential Oil for 1999 Toyota 4Runners

Enhance your 1999 Toyota 4Runner with one of the 9 Differential Oil we have in stock, starting at just $12.99.

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from

$35.99

Valvoline MaxLife Multi-Vehicle ATF is a full-synthetic formulation with advanced additives to prevent the major causes of transmission breakdown and help extend transmission life. Developed to help prevent leaks, maximize transmission performance, reduce transmission wear, and maintain smooth shifting longer than conventional fluids. It is suitable for use in a broad range of ATF applications including most Ford, GM, Toyota, Honda, Nissan, Hyundai, BMW, Mercedes, Volvo, VW & Audi. Recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, Ford MERCON LV, Toyota/Lexus Type T, T-II, T-IV, WS, Honda/Acura, ATF-Z1, Nissan/Infiniti Matic-D, Matic-J, Matric-K, Matic-S, Hyundai/Kia SP-II, SP-III, SP-IV, SPH-IV, BMW 7045E, ETL 8072B, LA2634, LT71141, Allison C-4, Mercedes Benz NAG-1, Volvo 1161521, 1161540, 97340, 1273.41, and VW/Audi G-052-025-A2, G-052-162-A1. For CVT applications Valvoline recommends Valvoline Full Synthetic CVT Fluid.

Product Features:

Formulated with full-synthetic base oils and long life friction modifiers to help improve smooth shifting, eliminate slippage and shudder, prevent clutch wear and improve drivability longer than conventional fluids
High-performance seal conditioners maintain and preserve the elasticity of seals to help prevent leaks in high mileage transmissions
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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$12.99

Valvoline High Performance Gear Oil is an extreme pressure gear lubricant formulated with quality base oils and superior additives that helps protect against severe temperatures, shock loads, scuffing, scouring, corrosion and pitting in high speed, high load, high torque and high horsepower conditions.

Product Features:

Formulated for reliable gear protection
Protects against severe temperatures to help extend service life
Formulated with extreme-pressure additives to minimize gear wear from shock loads
Helps protect against gear wear from scuffing, scouring, corrosion and pitting
Recommended for conventional hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified
PLEASE NOTE: Valvoline recommends SynPower Full Synthetic Gear Oil for limited slip differentials

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$13.99

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

from

$57.99

3 Qt. Penzoil 80W90 conventional gear Oil. W/ bottle of Posi additive.

Product Features:

Includes three quarts of conventional oil and one 4oz bottle of Yukon positraction additive

from

$44.99

3 Qt. Penzoil 80W90 conventional gear Oil.

Product Features:

Includes three quarts of conventional oil

from

$148.99

Redline Synthetic “Shock Proof” Oil with positraction Additive. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil and one 4oz bottle of Yukon positraction additive

from

$99.99

Redline Synthetic “Shock Proof” Oil. 3 Quarts.

Product Features:

Includes three quarts of Redline Shockproof oil

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$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

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$28.99

Castrol® Transmax® ATF/CVT Universal is a premium full-synthetic transmission fluid engineered for exceptional performance in both traditional step-shifting automatic transmissions and modern continuously variable transmissions (CVTs). Featuring Castrol Smooth Drive® Technology, it ensures enhanced friction durability for seamless gear shifts and superior high-temperature protection to resist oxidation. This advanced formulation offers unmatched protection against copper corrosion, extending the life of your transmission system. Its broad compatibility covers a wide range of ATF and CVT applications, including Dexron VI, Mercon LV, Toyota WS, Honda DW-1, Nissan Matic S, and many more, making it ideal for diverse vehicle types, including hybrids. Designed to improve workshop efficiency and simplify inventory management, this fluid is a versatile solution for professional mechanics and DIY enthusiasts alike. Packaged in a convenient 1-gallon size, it delivers outstanding value and reliability for maintaining optimal transmission performance.

Product Features:

Enhanced friction durability for smooth transmission performance
Superior high temperature protection to effectively resist oxidation
Unsurpassed protection against copper corrosion
Broad scope of vehicle applications improves workshop efficiency and inventory management
ATF Applications: Dexron VI (Dexron III, Dexron), Mercon LV (Mercon SP, Mercon V, Mercon), JASO 1A (03), JASO 1A LV (13), Toyota T IV, Toyota T III, Toyota WS, Honda/Acura DW 1/Z 1, Nissan Matic D, Matic J, Matic S, Hyundai/Kia SP IV, SP III
ATF Applications: Mazda ATF M-V, M-III, FZ, Mitsubishi SP IV, SP III, IIM, II, PA, J3, VW/Audi (6, 8 & 9 speed automatics), BMW/Mini (6, 8 and 9 speed automatics), Jaguar/Land Rover (6, 8 & 9 speed automatics), Porsche (6, 8 & 9 speed automatics)
ATF Applications: Volvo (6, 8 and 9 speed automatics), Volvo Transmission Oil 97342, AT102, Mercedes-Benz (7 and 9 speed automatics)
CVT Applications: Toyota CVT Fluid TC, Toyota CVT Fluid FE , Nissan CVT Fluid NS-1, Nissan CVT Fluid NS-2, Nissan CVT Fluid NS-3, Subaru i-CVT Fluid, Subaru i-CVT FG, Subaru Lineartronic High Torque Chain CVTF, Honda HCF-2

Best-Selling 1999 Toyota 4Runner Differential Cover

Upgrade your 4Runner with our best-selling Differential Cover.

show more show less

from

$78.99

Direct replacement – this weld-on differential cover directly replaces a corroded original cover on certain Toyota 4Runner and Tacoma trucks
Cost-effective repair – rather than buy a new axle, cut off the old cover and weld on this new one
Greater durability – constructed from heavier-gauge stamped steel than the original cover
Ready to install – pre-primed in weldable primer for a clean installation

Top-Quality Differential Pinion Seals for 1999 Toyota 4Runners

Choose a high-quality OEM or aftermarket Differential Pinion Seal for Toyota 4Runners and enjoy top-notch performance from $12.99.

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from

$19.99

Pinion seal for 7.5″, 8″, V6, and T100 and Tacoma with lockers.Yukon Mighty seal.

Product Features:

Pinion seal
Fits Toyota 7.5″, 8″ with 4 cylinder engine, V6, Landcruiser and Tacoma/T100 with factory locking differential

from

$12.99

Low swell in hydrocarbon fluids
Design type: spring loaded; multi-lip
Provides good low temperature capability
Temperature range: -40°F to 225°F; -40°C to 107°C
Delivers quality and reliable performance for every type of repair

Our Top Pick for a 1999 Toyota 4Runner Differential Bearing

Invest in a durable Differential Bearing for your 1999 Toyota, knowing you’re getting trusted brands and expert craftsmanship.

show more show less

from

$69.99

Product Features:

CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
PREMIUM MATERIALS: Precision manufactured using premium-grade steel for outstanding durability and performance
SMOOTH ROTATION: Crowned raceways and rollers for even load distribution
OE-STYLE DESIGN: Engineered to meet OE specifications
COMPREHENSIVE COVERAGE: Industry-leading coverage for domestic and import applications
RIGOROUS TESTING: Comprehensive testing throughout design and development processes by National engineers for quality you can count on

Differential Axle Shafts for 1999 Toyota 4Runners

Make a smart move for your 1999 Toyota 4Runner with products all priced from $274.99 to $469.99.

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from

$469.99

Product Features:

30 spline
6 lug
29.25″ long
Fits 1995-2000 Tacoma and 1996-2000 4Runner
Non ABS applications only

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$289.99

95-00 Tacoma & 96-00 4RUNNER 29-1/4″ 30spline axle shaft.

Product Features:

30 spline
6 lug
29.25″ long
Fits 1995-2004 Tacoma and 1996-2002 4Runner
ABS applications only

from

$274.99

T8 30spline axle ’86-00 (24.64″ – 29.08″ CUT2LTH) 4340.

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

Top-Rated Differential Brands For Your 1999 Toyota 4Runner

When it comes to finding the perfect Differential for your 1999 Toyota 4Runner, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Differential brands including Valvoline and National, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $12.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1999 Toyota 4Runner, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 1999 Toyota 4Runner Differentials

If you’re looking for a top-quality Differential for your 1999 Toyota 4Runner, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 3 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.99 and an average cost of $20.99, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 1999 Toyota 4Runner come highly rated, with over 689 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $12.99

(235)

High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart

“Good quality oil. Does it’s job.”

from $35.99

(446)

MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

“Good quality great price”

from $13.99

(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”

Top-Quality National 1999 Toyota 4Runner Differentials

For those in search of a high-quality Differential for their 1999 Toyota 4Runner, Advance Auto Parts offers a great selection of National Differentials. With 1 National Differentials in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Differentials start at just $89.99, giving you a range of options to suit your budget. Backed by over 2 customer ratings and an average rating of 4.3 stars, National Differentials provide both reliability and excellent performance. Choosing a National Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $89.99

(2)

Multi-Purpose Bearing

“Exactly what came out”

FAQs for 1999 Toyota 4Runner Differentials

What are the best-selling Differentials for 1999 Toyota 4Runners?

Out of 130 Differentials that fit 1999 Toyota 4Runners, the following parts are the top sellers:

3 Qt – 80W90 Conventional Gear Oil With Posi Additive (11645418) – $57.99
3 Qt – Penzoil 80W90 Conventional Gear Oil (11644279) – $44.99
Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (11645332) – $148.99

What’s the price range for 1999 Toyota 4Runner Differentials?

The prices of Differentials for the 1999 Toyota 4Runner range from $5.99 up to $1,566.99 for the most premium parts.

What is the average price of a Differential for a 1999 Toyota 4Runner?

The average price for Differentials for the 1999 Toyota 4Runner is $245.11. Keep in mind the variety of part types within our Differential category, where you are likely to find a wide range of prices across a variety of parts and components.

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

Yes, we carry Differentials for 41 model years of Toyota 4Runners between 1984 and 2026. The following model years are the most popular for Differential purchases: 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Differentials for my 1999 Toyota 4Runner?

The cheapest 1999 Toyota 4Runner Differentials we carry are:

Pinion Nut (11642191) – $5.99
Differential Pinion Nut (20520203) – $6.99
Toyota 7.5", 8", & V6 Ring Gear Bolt Retainer Plate (11642377) – $6.99
Ring Gear Bolt (11642232) – $6.99
Zip Locker Rear Switch Cover (11642183) – $7.99

Does Advance Auto Parts sell Differentials for any other 1999 Toyota models?

Yes. We stock Differentials for 8 other popular 1999 Toyota models. Some of the most popular are 1999 Corolla Differentials, 1999 Camry Differentials, 1999 Land Cruiser Differentials, 1999 Celica Differentials, and 1999 Avalon Differentials.

What types of Differentials do you sell for my 1999 Toyota 4Runner?

As of 3/1/26, these are some of the most in-demand types of Differentials for a 1999 Toyota 4Runner:

Can I get help with 1999 Toyota 4Runner Differential orders?

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

What is your return policy for Toyota 4Runner Differentials?

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

1999 Toyota 4Runner Differentials

Yukon Gear – T8 & V6 Bolt For Adjuster Lock (Part No.33366)

National – Multi-Purpose Bearing (Part No.30025)

Yukon Gear – Grizzly Locker For Toyota 8", 4 Cylinder (Part No.28019)

USA Standard Gear – 8" Toyota Spartan Locker Cross Pin (Part No.17031)

Yukon Gear – Oil Baffle (Part No.33007)

Yukon Gear – Differential Crush S (Part No.55081)

Yukon Gear – Seal Housing For Toyota Zip Locker (Part No.34011)

Yukon Gear – Small Hole Yoke For ’82 And Older Toyota T100 And Tacoma (With Locker) With 27 Spline Pinion (Part No.41107)

Yukon Gear – T8 Side Bearing Adjuster Lock (Without Bolt) (Part No.33363)

Yukon Gear – High Performance Ring & Pinion Gear Set For Toyota 8" In A 4.88 Ratio (Part No.24646)

Motive Gear – Differential Pinion Nut (Part No.1504)

Dorman – Pre-Pressed Axle (OE Fix) (Part No.926-137)

Yukon Gear – Toyota 7.5", 8", & V6 Ring Gear Bolt Retainer Plate (Part No.33061)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Yukon Gear – Bearing Race Driver (Part No.56008)

Dorman – Differential Cover (OE Fix) (Part No.926-993)

Yukon Gear – Carrier Shim Kit For Toyota 7.5" (Part No.55038)

Yukon Gear – RngPnnKt (Part No.24677)

Schaeffler – Cup (Part No.JLM104910)

Yukon Gear – Differential (Part No.26051)

AISIN – Differential Lock Shift Actuator Assembly (Part No.SAT-020)

Yukon Gear – Differential Pinion (Part No.13111)

Powertrax – Lock Right Locker (Part No.1620-LR)

USA Standard Gear – Spool For Toyota V6 (Part No.59012)

Yukon Gear – Toyota 8" & V6 Gasket (Part No.23028)

National – Multi-Purpose Seal (Part No.710697)

Yukon Gear – 8" Standard Open Pinion Gear Thrust Washer (Part No.33392)

Yukon Gear – 8" Standard Open Side Gear Thrust Washer (Part No.33395)

Valvoline – MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon (Part No.773775)

Valvoline – High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart (Part No.VV831)

Valvoline – Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822389)

Yukon Gear – 3 Qt – 80W90 Conventional Gear Oil With Posi Additive (Part No.15003)

Yukon Gear – 3 Qt – Penzoil 80W90 Conventional Gear Oil (Part No.15002)

Yukon Gear – Redline Synthetic "Shock Proof" Oil With Positraction Additive – 4 Quarts (Part No.15005)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 3 Quarts (Part No.15000)

Yukon Gear – Redline Synthetic "Shock Proof" Oil – 4 Quarts (Part No.15004)

Castrol – Transmax ATF/CVT Universal Transmission Fluid, Smooth Performance, 1 Gallon (Part No.15E0C8)

Dorman – Differential Cover (OE Fix) (Part No.926-993)

Yukon Gear – Pinion Seal For Toyota 7.5", 8", V6 & T100 (Part No.30005)

National – Multi Purpose Seal (Part No.710823)

National – Multi-Purpose Bearing (Part No.KC-11445-Y)

Yukon Gear – Rear Axle For ’95-’00 Tacoma & ’96-’00 4Runner, Non-ABS (Part No.21739)

Yukon Gear – Axle Shaft For 95-00 Tacoma & 96-00 4Runner, 29-1/4", 30 Spline (Part No.21660)

Yukon Gear – T8 30Spline Axle (24.64" – 29.08" Cut2Lth) 4340 – 106Mm Brake Pilot (Part No.21724)