2003 Ford Explorer Differentials

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Keep Your 2003 Ford Explorer in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2003 Ford Explorer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Rear Differential Cover Gaskets, Differential Covers, and Differential Oil. 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 Motive Gear, Valvoline, and National. For example, Motive Gear Differentials start at just $2.79 with an average 4.0 star rating. Valvoline and National offer similar pricing and quality, backed by strong customer feedback. With over 10,276 reviews and a solid 4 star average, you can shop with confidence knowing other Ford Explorer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Ford Explorer Differential at Advance Auto Parts is around $170.90, with a range that starts at $1.29 and goes up to $1,115.99. With 199 options in stock from 18 trusted brands, finding the right fit is easy. Popular picks like Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket, MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT, and 3 Qt – 80W90 Conventional Gear Oil With Posi Additive start at just $15.99 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 Drive Shafts and Axles and Universal Joints. At Advance Auto Parts, we’re here to help you keep your 2003 Ford Explorer in peak condition, inside and out.

Essential 2003 Ford Explorer Differentials

Felpro – Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket (Part No.RDS 55341)

Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket

from

$15.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Yukon Gear – Chrome Cover For 8.8" Ford (Part No.32009)

Chrome Cover For 8.8" Ford

from

$74.99
Chrome cover for 8.8″ Ford.

Product Features:
  • Fits Ford 8.8″
  • Chrome
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Yukon Gear – The Carrier Bearing Puller (Part No.56072)

The Carrier Bearing Puller

from

$883.99
The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with a handy bench top stand and works with up to one ton applications including Dana 70HD, Dana 80, 10.25″ & 10.5″ Ford, or GM & Chrysler 11.5″ differentials.

Product Features:
  • Carrier bearing puller
  • Works with an impact gun to safely and easliy remove carrrier bearings
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Yukon Gear – 18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron ‘Vette (Part No.16110)

18 Plate Steel Clutches For GM 8.2", GM 8.5", 12T, 12P, Ford 8.8" & Cast Iron 'Vette

from

$483.99
Product Features:
  • Clutch kit
  • Fits Ford 8.8″, 1963-1979 Corvette, GM 12 bolt passenger car and truck, 8.2″, 8.5″ and 8.6″ Dura Grip positraction
  • 18 piece kit
  • Steel clutches
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Yukon Gear – Dana 25 / 27 / 30 / 36 / 44 / 53 Pinion Nut Washer Replacement (Part No.33163)

Dana 25 / 27 / 30 / 36 / 44 / 53 Pinion Nut Washer Replacement

from

$3.99
Replacement pinion nut washer for Dana 25, 27, 30, 36, 44 & 53.

Product Features:
  • Pinion nut washer for Dana Spicer 25, 27, 30, 44 and 50
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National – Multi-Purpose Bearing (Part No.A-64)

Multi-Purpose Bearing

from

$53.99
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
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Pro-King – Differential Cross Shaft (Part No.742G930)

Differential Cross Shaft

from

$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
See More

Yukon Gear – Standard Open Spider Gear Kit For 8.8" Ford With 31 Spline Axles (Part No.16021)

Standard Open Spider Gear Kit For 8.8" Ford With 31 Spline Axles

from

$299.99
Yukon standard open spider gear kit for 8.8″ Ford with 31 spline axles and 7/8″ pin. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects.

Product Features:
  • Spider gear kit
  • Fits Ford 8.8″ with 31 spline axles
  • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
  • 0.875″ cross pin shaft diameter
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Pro-King – Differential Internal Nest Kit (Part No.762B717A)

Differential Internal Nest Kit

from

$90.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:
  • Meets or exceeds OE specifications
See More

Powertrax – Lock Right Locker (Part No.1822-LR)

Lock Right Locker

from

$371.99
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!
  • See More

    Yukon Gear – Pinion Install Kit For Model 35 IFS Differential For Explorer And Ranger (Part No.13084)

    Pinion Install Kit For Model 35 IFS Differential For Explorer And Ranger

    from

    $199.99
    Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused. This kit uses Timken bearings and races along with a high quality pinion seal and small parts. Included in this kit are the pinion bearings and races, pilot bearing (if applicable), crush sleeve (if applicable), complete pinion shim kit, thread locker, and marking compound with brush. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your pinion gear.

    Product Features:
    • Fits AMC Model 35 IFS
    • Included are pinion bearings and races, pinion seal, crush sleeve, complete pinion shim kit, and marking compound with brush.
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    Spartan – Drive Axle Assembly; FoMoCo SUV 96-00 Lockup Axle (Part No.RAXP1831D)

    Drive Axle Assembly; FoMoCo SUV 96-00 Lockup Axle

    from

    $1539.99
    Remanufactured Rear Axle assemblies are completely disassembled, thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed & include backing plates, axle shafts & fluid.

    Product Features:
    • Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shipping
    • Axles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original core
    • Our complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble free
    • Remember to match axle ratio to original. For 4WD rear axle must match front axle ratio
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    Dorman – Differential Clutch Kit (Part No.697-780)

    Differential Clutch Kit

    from

    $262.99
    This differential disc kit is a low-cost, time-saving repair solution for the posi-traction function. They are designed to match the fit and performance of the original disc on specific vehicle years, makes and models.

    Product Features:
    • Direct replacement – this differential clutch kit provides the necessary components for repairing the original equipment on specific vehicles
    • Quality materials – all components are built for reliable longevity and performance
    • Smart solution – provides original equipment fit and function for a competitive price compared to original manufacturer
    • Trustworthy quality – backed by team of designers and engineers in the United States
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    Yukon Gear – Cover Bolt For Ford 7.5", 8.8" & 9.75" (Part No.33554)

    Cover Bolt For Ford 7.5", 8.8" & 9.75"

    from

    $6.99
    Yukon 1541H alloy replacement rear axle for Dana 60, 70, and 80, 35 spline. (40″ to 43.5″) Full float axle (8×3.96″ ). Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a full-floating axle.

    Product Features:
    • 35 spline
    • 8 x 3.96″ bolt pattern
    • Cut to length design fits 40″-43.5″ applications
    • Fits Dana Spicer 60, 70 and 80
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    Pro-King – Differential Pinion Shim Kit (Part No.742G200A)

    Differential Pinion Shim Kit

    from

    $18.49
    Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

    Product Features:
    • Meets or exceeds OE specifications
    See More

    Yukon Gear – Standard Open Carrier Case, Ford 8.8", 31 Spline (Part No.20077)

    Standard Open Carrier Case, Ford 8.8", 31 Spline

    from

    $269.99
    8.8″ 31 spline standard Open case (7/8 X-PIN HOLE).

    Product Features:
    • Standard open carrier case
    • Fits Ford 8.8″ with 31 spline axles
    • Does not include spider gears
    • 0.875″ cross pin shaft diameter
    See More

    National – Bearings (Part No.LM603019)

    Bearings

    from

    $49.99
    Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

    Product Features:
    • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
    • SMOOTH ROTATION – Crowned raceways 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
    See More

    Yukon Gear – Yoke For Ford 8.8" Truck Or Passenger With A 1330 U/Joint Size (Part No.41049)

    Yoke For Ford 8.8" Truck Or Passenger With A 1330 U/Joint Size

    from

    $209.99
    Yukon yoke for Ford 8.8″ truck or passenger with a 1330 U/joint size. 3.625″ snap ring span, 1.125″ cap diameter. Outside snap ring. All Yukon yokes come with a one year warranty against manufacturing defects.

    Product Features:
    • Fits Ford 8.8″
    • 30 spline
    • 1330 u-joint size
    • 3.625″ snap ring span
    • 1.062″ cap diameter
    • Outside snap ring design
    • Strap style
    See More

    Yukon Gear – Carrier Installation Kit For Ford 8.8" Differential (Part No.57007)

    Carrier Installation Kit For Ford 8.8" Differential

    from

    $134.99
    Yukon Carrier installation kits are great, low cost kit for carrier changes such as Positraction or locker upgrades. Carrier installation kit for Ford 8.8″ differential. This kit contains carrier bearings, races and shims.

    Product Features:
    • Fits Ford 8.8″
    • Includes carrier bearings and races and “super” carrier shim kit
    See More

    Yukon Gear – Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette (Part No.55002)

    Super Carrier Shim Kit For Ford 8.8", GM 12 Bolt Car & Truck, 8.6 & Vette

    from

    $59.99
    Product Features:
    • Super carrier shim kit for Ford 8.8″, GM 12 bolt passenger car and truck, GM 8.0″, 8.6″, 8.6″ IRS and 1963-1979 Corvette
    • Interlocking design makes installation much easier
    See More

    Yukon Gear – Crush Sleeve (Part No.33093)

    Crush Sleeve

    from

    $10.99
    Crush Sleeve for Model 35, Chrysler 7.25″, 8.25″ Ford 8″ & GM 7.75″. Approx 0.495″ long.

    Product Features:
    • Crush sleeve for AMC Model 35, Chrysler 7.25″ and 8.25″, Ford 8″ and GM 7.75″
    • 0.495″ tall
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    Yukon Gear – Dana 25 / 27 / 30 / 44 / 50 Inner Oil Slinger Replacement (Part No.33012)

    Dana 25 / 27 / 30 / 44 / 50 Inner Oil Slinger Replacement

    from

    $6.99
    Product Features:
    • Inner oil slinger for Dana Spicer 25, 27, 30, 44 and 50
    See More

    Schaeffler – Shaft Seal (Part No.SS2876)

    Shaft Seal

    from

    $23.79
    Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

    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
    See More

    Yukon Gear – 8.8" Ford 3/4" Notched Cross Pin Shaft (0.750", ’85 And Older) (Part No.33432)

    8.8" Ford 3/4" Notched Cross Pin Shaft (0.750", '85 And Older)

    from

    $78.99
    8.8″ Ford 3/4″ Notched cross pin shaft (0.750″, ’85 and older). This cross pin shaft is not compatible with Powertrax Lock Rights or Spartan Lockers.

    Product Features:
    • Cross pin shaft
    • Fits Ford 8.8″
    • 0.750″ diameter
    • Notched
    • Not compatible with Spartan Lockers or Lock Rights
    See More

    Yukon Gear – Spider Gear Kit For Ford 8.8", 31 Spline, Trac Loc Posi (Part No.16106)

    Spider Gear Kit For Ford 8.8", 31 Spline, Trac Loc Posi

    from

    $363.99
    Yukon spider gear kit for Ford 8.8″, 31 spline, Trac Loc posi. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects. This kit does not include cross pin shaft or clutches.

    Product Features:
    • Spider gear kit
    • Fit Ford 8.8″ Trac Loc positraction with 31 spline axles
    • Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.
    See More

    Yukon Gear – 1541H Alloy 5 Lug Right Hand Rear Axle For ’91-’94 Ford 8.8" Explorer (Part No.21191)

    1541H Alloy 5 Lug Right Hand Rear Axle For '91-'94 Ford 8.8" Explorer

    from

    $282.99
    Yukon 1541H alloy 5 lug right hand rear axle for ’91-’94 Ford 8.8″ Explorer with a length of 27-13/16″ inches and 31 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. This is a C-clip axle.

    Product Features:
    • 31 spline
    • 5 lug
    • 27 13/16″ long
    • Fits Ford 8.8″ in 1991-1994 Explorer
    • Right hand side
    See More

    Sealed Power – Engine Auxiliary Shaft Bearing Set (Part No.1881M)

    Engine Auxiliary Shaft Bearing Set

    from

    $36.99
    Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

    Product Features:
    • Steel-backed Babbitt lining material
    • Used in automotive and high-performance
    • Babbitt is designed to perform under extreme loads without damaging other engine parts
    • Babbitt is more environmentally friendly than other material
    • ISO & QS certified manufacturing
    See More

    Motive Gear – Differential Pinion Solid Spacer Kit w/Shims (Part No.4104)

    Differential Pinion Solid Spacer Kit w/Shims

    from

    $10.49


    Product Features:
    • SOLID SPACER FORD 8.8″ & 9″
    See More

    Most Popular Rear Differential Cover Gaskets for 2003 Ford Explorers

    Enhance your 2003 Ford Explorer with one of the 4 Rear Differential Cover Gaskets we have in stock, starting at just $12.99.

    Felpro – Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket (Part No.RDS 55341)

    Axle Housing Cover Gasket Rectangular Shaped, 10 Bolt Hole Gasket

    from

    $15.99
    Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

    Product Features:
    • Meets or exceeds all original equipment specifications
    • Application specific design to ensure a perfect fit
    • Engineered for the sealing repair environment
    • Validated for fit, form and function
    • Unsurpassed quality you can trust
    See More

    Yukon Gear – Replacement Cover Gasket For Dana 30 (Part No.23003)

    Replacement Cover Gasket For Dana 30

    from

    $12.99
    Product Features:
    • Cover gasket
    • Fits Dana Spicer 30
    See More

    Mr. Gasket – Differential Gasket (Part No.142)

    Differential Gasket

    from

    $24.29
    Mr. Gasket Axle Housing/Differential Cover or Rear End Gaskets are manufactured from a .047 inch thick cellulose/nitrile composite gasket material for excellent sealing and durability. They are precision die-cut for an excellent fit.

    Product Features:
    • .047″ thick cellulose/nitrile composite gasket material
    • Precision die cut
    • Reusable
    See More

    Yukon Gear – 8.8" Ford Cover Gasket (Part No.23011)

    8.8" Ford Cover Gasket

    from

    $12.99
    8.8″ Ford cover gasket.

    Product Features:
    • Cover gasket
    • Fits Ford 8.8″
    See More

    Best-Selling 2003 Ford Explorer Differential Covers

    Upgrade your Explorer with one of our 5 best-selling Differential Covers, earning an average 1 stars rating across 1 reviews.

    ATP – DIFF COVER KIT (Part No.111103)

    DIFF COVER KIT

    from

    $37.99
    DIFF COVER KIT

    Yukon Gear – Steel Cover For Ford 8.8" (Part No.32328)

    Steel Cover For Ford 8.8"

    from

    $99.99
    Yukon outer stub axle for Chrysler 9.25″ front. This axle uses a 1485 u/joint and has 33 splines.

    Product Features:
    • Fits Ford 8.8″
    • Steel
    See More

    Yukon Gear – Replacement Chrome Cover For Dana 30 Standard Rotation (Part No.32003)

    Replacement Chrome Cover For Dana 30 Standard Rotation

    from

    $52.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Chrome
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    Yukon Gear – Polished Aluminum Replacement Cover For Dana 30 Standard Rotation (Part No.32021)

    Polished Aluminum Replacement Cover For Dana 30 Standard Rotation

    from

    $201.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Finned polished aluminum
    See More

    Yukon Gear – Steel Cover For Dana 30 Standard Rotation Front (Part No.32316)

    Steel Cover For Dana 30 Standard Rotation Front

    from

    $138.99
    Product Features:
    • Fits standard rotation Dana Spicer 30
    • Steel
    See More

    Top-Quality Differential Oil for 2003 Ford Explorers

    Choose a high-quality OEM or aftermarket Differential Oil for Ford Explorers and enjoy top-notch performance from $12.99.

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

    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon

    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
    See More

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

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

    from

    $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
    See More

    Royal Purple – MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT (Part No.01300)

    MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT

    from

    $24.99
    Max Gear is recommended for truck and automotive differentials, outboard motor lower units or in rear axles or manual transmissions requiring an API fluid. Max Gear is a high performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates both gear and bearing wear-even under severe squeeze film conditions caused by extremely high loads, sudden shock loads or low RPMs. Slippery, synthetic molecules not only reduce wear and friction but significantly increase Max Gear’s cold weather fluidity and lubricity, making it the ideal choice for vehicles operating in cold climates. Gears run smoother, quieter, cooler and longer without overhauls. It is noncorrosive to both ferrous and nonferrous metals.

    Product Features:
    • Maximizes horsepower
    • Extends gear and bearing life
    • Reduces operating temperature
    • Lower coefficient of friction
    • Superior corrosion protection
    • Separates rapidly from water
    • For use with open, limited-slip and locking differential
    • Contains limited-slip friction modifier
    • Made in USA
    See More

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

    Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart

    from

    $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
    See More

    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
    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
    See More

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

    3 Qt - Penzoil 80W90 Conventional Gear Oil

    from

    $44.99
    3 Qt. Penzoil 80W90 conventional gear Oil.

    Product Features:
    • Includes three quarts of conventional oil
    See More

    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 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
    See More

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

    Redline Synthetic "Shock Proof" Oil - 3 Quarts

    from

    $99.99
    Redline Synthetic “Shock Proof” Oil. 3 Quarts.

    Product Features:
    • Includes three quarts of Redline Shockproof oil
    See More

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

    Redline Synthetic "Shock Proof" Oil - 4 Quarts

    from

    $137.99
    Redline Synthetic “Shock Proof” Oil. 4 Quarts.

    Product Features:
    • Includes four quarts of Redline Shockproof oil
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    Castrol – Transmax ATF/CVT Universal Transmission Fluid, Smooth Performance, 1 Gallon (Part No.15E0C8)

    Transmax ATF/CVT Universal Transmission Fluid, Smooth Performance, 1 Gallon

    from

    $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
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    Top Picks for 2003 Ford Explorer Differential Bearings

    Invest in one of our 8 durable Differential Bearings for your 2003 Ford, knowing you’re getting trusted brands and expert craftsmanship.

    Driveworks – Taper Bearing Cone (Part No.S-LM-501349)

    Taper Bearing Cone

    from

    $10.99
    Value-priced bearing meets all cataloged application requirements.

    Product Features:
    • Brand may vary by location
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    National – Multi-Purpose Bearing (Part No.206)

    Multi-Purpose Bearing

    from

    $24.99
    Product Features:
    • BUILT TO LAST: Advanced heat treatment process for strength
    • PREMIUM MATERIALS: Precision manufactured using premium-grade steel for lasting performance and extended bearing life
    • RELIABLE PERFORMANCE: Element size and quantity are engineered to meet or exceed the load rating of OE bearings
    • 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
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    National – Tapered Roller Bearing Cone (Part No.LM603049)

    Tapered Roller Bearing Cone

    from

    $11.29
    Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.

    Product Features:
    • 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
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    Schaeffler – Cone (Part No.KNP343847)

    Cone

    from

    $59.99
    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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    National – Bearings (Part No.LM603019)

    Bearings

    from

    $49.99
    Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

    Product Features:
    • PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
    • SMOOTH ROTATION – Crowned raceways 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
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    Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT36)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $34.49
    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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    Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT5)

    Bearing - TRB (Tapered Roller Bearing)

    from

    $21.29
    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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    Schaeffler – Bearing (Part No.BR1682)

    Bearing

    from

    $12.49
    Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.

    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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    Differential Axle Shafts for 2003 Ford Explorers

    Make a smart move for your 2003 Ford Explorer with products all priced from $126.99 to $127.99.

    Motive Gear – Axle Shaft (Part No.MG2120)

    Axle Shaft

    from

    $127.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 8.8″ 31 SPL. 95&UP EXPLO 95-97 MOUNTAINEER – R.H. 2&4 WD
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    Motive Gear – Axle Shaft (Part No.MG2121)

    Axle Shaft

    from

    $126.99
    The Motive Gear replacement axle shaft offers an OE-quality axle shaft at a fraction of the OE cost. Manufactured from 1541H material on high-tolerance CNC equipment, this axle shaft is designed to provide a perfect fit every time.

    Product Features:
    • AXLE SHAFT 8.8″ 31 SPL. 97 & UP MOUNTAINEER 2&4 WD, L.H.
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    Top-Rated Differential Brands For Your 2003 Ford Explorer

    When it comes to finding the perfect Differential for your 2003 Ford Explorer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 18 trusted brands. We carry the most popular Differential brands including Valvoline, National, and Motive Gear, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $2.79. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2003 Ford Explorer, providing peace of mind with parts that meet or exceed OEM standards.

    Popular Valvoline 2003 Ford Explorer Differentials

    If you’re looking for a top-quality Differential for your 2003 Ford Explorer, 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 2003 Ford Explorer 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.
    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
    from $35.99
    (446)
    MaxLife Multi-Vehicle Automatic Transmission Fluid, 1 Gallon
    “Good quality great price”
    High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart
    from $12.99
    (235)
    High Performance Transmission & Differential Gear Oil: Conventional 80W-90, 1 Quart
    “Good quality oil. Does it’s job.”
    Import Multi-Vehicle Synthetic Automatic Transmission Fluid, 1 Quart
    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 2003 Ford Explorer Differentials

    For those in search of a high-quality Differential for their 2003 Ford Explorer, Advance Auto Parts offers a great selection of National Differentials. With 2 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 $11.99, with an average price of $90.99, giving you a range of options to suit your budget. Backed by over 6 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.
    Axle Differential Bearing & Seal Kit
    from $169.99
    (4)
    Axle Differential Bearing & Seal Kit
    “Complete kit with for my rebuild. I was lucky to get awesome service from the salesman. Parts were very reasonable price-wise.”
    Bearing Race
    from $11.99
    (2)
    Bearing Race
    “Reasonable price and woks well. front diff 2006 Escalade esv”

    FAQs for 2003 Ford Explorer Differentials

    What are the best-selling Differentials for 2003 Ford Explorers?

    Out of 199 Differentials that fit 2003 Ford Explorers, the following parts are the top sellers:

    What’s the price range for 2003 Ford Explorer Differentials?

    The prices of Differentials for the 2003 Ford Explorer range from $1.29 up to $1,115.99 for the most premium parts.

    What is the average price of a Differential for a 2003 Ford Explorer?

    The average price for Differentials for the 2003 Ford Explorer is $170.90. 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 Ford Explorer model years?

    Yes, we carry Differentials for 33 model years of Ford Explorers between 1991 and 2025. The following model years are the most popular for Differential purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

    What are the cheapest Differentials for my 2003 Ford Explorer?

    The cheapest 2003 Ford Explorer Differentials we carry are:

    Does Advance Auto Parts sell Differentials for any other 2003 Ford models?

    Yes. We stock Differentials for 22 other popular 2003 Ford models. Some of the most popular are 2003 F-150 Differentials, 2003 Mustang Differentials, 2003 E-250 Econoline Differentials, 2003 Thunderbird Differentials, and 2003 F-250 Super Duty Differentials.

    What are the top-rated Differentials that fit the 2003 Ford Explorer?

    The one 2003 Ford Explorer Differential we have in stock is the Differential Ring Gear Bolt. It costs $1.29.

    What types of Differentials do you sell for my 2003 Ford Explorer?

    As of 3/1/26, these are some of the most in-demand types of Differentials for a 2003 Ford Explorer:

    Can I get help with 2003 Ford Explorer Differential orders?

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

    What is your return policy for Ford Explorer Differentials?

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