2008 Mercury Mountaineer Differentials

Name: Differential Pinion Nut
Brand: Motive Gear
SKU: 379570S
Price: 6.99 USD
Rating: 4.0 (1 reviews)

Keep Your 2008 Mercury Mountaineer in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2008 Mercury Mountaineer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Covers, Differential Pinion Seals, and Differential Bearings. 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 $7.99 with an average 4.0 star rating. Valvoline and National offer similar pricing and quality, backed by strong customer feedback. With over 1,478 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Mountaineer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2008 Mercury Mountaineer Differential at Advance Auto Parts is around $199.70, with a range that starts at $1.29 and goes up to $1,303.99. With 200 options in stock from 15 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart, and Differential Shaft Lock Bolt start at just $6.79 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 2008 Mercury Mountaineer in peak condition, inside and out.

Looking for the perfect Differential for your 2008 Mercury Mountaineer? 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 Mercury Mountaineer. Whether you’re driving a 2008 model or another popular model year like 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, and 2010, 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 2008 Mercury Mountaineer Differentials

from

$6.99

All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!

from

$13.99

Product Features:

O-ring for seal housing
Fits Dana Spicer 30 and AMC Model 35

from

$329.99

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 AMC Model 35 IFS
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, thread locker, marking compound with brush and gasket.

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

from

$6.99

Side gear thrust washer (0.750″ shaft) for 8.8″ Ford.

Product Features:

Side gear thrust washer for Ford 8.8″
0.750″ diameter cross pin shaft applications only

from

$9.99

5/16″-18 cover bolt, Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, Chrysler 9.25 rear, GM 7.5″, 7.625″, 8.2″, 8.5″, 12 bolt passenger car and truck.

Product Features:

Cover bolt for Dana Spicer 25, 27, 30 and 44, AMC Model 20 and Model 35, GM 7.5″, 7.625″, 8.2″, 8.5″ and 12 bolt passenger car and truck.
1/2″ head

from

$164.99

Yukon replacement standard open carrier case for Dana 30, 3.73 & up, 1.943″ tall. If purchasing this case for a D30 JK front, you will need to also purchase spider gear set YPKD30-S-27.

Product Features:

Standard open carrier case
Fits Dana Spicer 30
3.73 and up ratio only
Does not include spider gears

from

$336.99

Yukon positraction internals for 8.8″ Ford with 28 spline axles. This kit fits Yukon Gura Grip & Eaton positractions. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. This kit does not include clutches. All components come with a one year warranty against manufacturing defects.

Product Features:

Spider gear kit
Fits Ford 8.8″ with Yukon Dura Grip positraction with 28 spline axles
Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers.

from

$99.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$241.99

8.8″ Ford TracLoc (with short ears–for late models only) clutch set, both sides.

Product Features:

Clutch kit
Fit Ford 8.8″ Trac Loc positraction

from

$179.99

Product Features:

FRD 10BL 8.8 R/P 3.73A MG

from

$6.49

This differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles, and is engineered for durability and reliable performance.

Product Features:

Direct replacement – this differential crush sleeve is designed to match the fit and function of the original sleeve on specified vehicles
Required replacement – when servicing the differential
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

from

$30.99

7.5″, 8″, 8.8″, 9″, 10.25″ Ford REDI sleeve yoke saver.Yukon Mighty seal.

Product Features:

Redi-Sleeve yoke saver
Fits Ford 7.5″, 8.8″, 9″ and 10.25″

from

$4.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

from

$269.99

B&M Cast Aluminum Differential Covers are designed to strengthen the differential by preventing case distortion and ring gear & bearing cap deflection. Constructed of A356.0-T6 aluminum, these rugged covers significantly increase the fluid capacity and dissipate heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, drain and fill port locations, a magnetic drain plug for catching ferrous metal particles, and complete hardware and installation instructions.

Product Features:

Additional Oil Capacity
More Cooling Ability
No Dipstick Modification
Some Include Fluid Pickup Extension
Built-In Drain Plugs
Cast Aluminum

from

$17.99

Yukon 1541H alloy right hand rear axle for Model 35 (drum brakes) with a 54 tooth, 2.7″ ABS ring. axle has a length of 29-1/4″ inches and 27 splines. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H allo

Product Features:

Pinion depth shims for AMC Model 35 and Chrysler 7.25″

from

$5.99

Model 35 roll pin for cross pin shaft, 0.190″ DIA.

Product Features:

Roll pin
Fits AMC Model 35

from

$153.99

M802048 set-up bearing (one bearing). No return.

Product Features:

Set up bearing
Fits M802048 pinion bearing
Easily slips on and off pinion journal to allow for easier pinion depth adjustment

from

$63.99

Product Features:

Trac Loc spring
Fits 28 spline Ford 8.8

from

$719.99

Product Features:

Trac Loc positraction
Fits Ford 8.8″ with 31 spline axles

from

$174.99

Pump up kit, Zip Locker.

Product Features:

Tire pump up kit
Includes hose, fittings, couplers and teflon tape

from

$5.99

Ford 7.5″ & 8.8″ ring gear bolt, standard Open & TracLoc. 7/16″ x 20.

Product Features:

Ring gear bolt for Ford 7.5″ and 8.8″
7/16″ x 20

from

$194.99

Mini Spool for Ford 8.8″ with 31 spline axles and 7/8″ cross pin. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier and give 100% power to both tires at all times. These units are not recommended for street-driven vehicles. We recommend full spools for vehicles with large tires or high horsepower. These units come with a one year warranty against manufacturing defects.

Product Features:

Fits Ford 8.8″ with 31 spline axles
Provides 100% traction to both wheels at all times
Installs into standard open carrier case

from

$48.99

A worn or damaged differential pinion flange can lead to driveline vibrations and fluid leaks. This part is designed to match the performance of the original equipment pinion flange on specified vehicles. It has been engineered to help restore a secure and reliable connection between the differential pinion and the drive shaft when the original flange is rusted, worn or damaged. It is made of rugged materials for reliable service and durability.

Product Features:

Direct replacement – this differential pinion flange is designed to match the performance of the original equipment flange on specified vehicles
Ideal solution – engineered to help restore a secure and reliable connection between the differential pinion and the drive shaft when the original flange is worn or damaged
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

from

$1303.99

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are backed by the best warranty in the business! All Zip Lockers come with a six (6) year warranty, including any collaterally damaged parts and associated labor, up to $2,000, for the first two (2) years.

Product Features:

Fits Dana Spicer 30 with aftermarket 30 spline axles
3.73 and up ratio only
Forged case and 8620 internals for added strength
Works with a variety of air delivery systems
Assembled in the USA

from

$6.99

Product Features:

Inner oil slinger for Dana Spicer 25, 27, 30, 44 and 50

from

$215.99

Bearing race driver. No return.

Product Features:

Bearing race driver
Fits M802011 race
All steel construction

from

$17.49

Popular 2008 Mercury Mountaineer Differentials Categories

Differential Oil

Differential Pinion Yokes

Rear Differential Cover Gaskets

Differential Open Unit and Components

Differential Covers

Differential Pinion Shaft Lock Bolts

Differential Bearings

Differential Pinion Pilot Bearings

Differential Cover Bolts

Differential Carriers

Differential Bearing Kits

Front Differential Pinion Bearings

Differential Spider Gear Kits

Differential Rebuild Kits

Differential Carrier Shim Kits

Differential Pinion Seals

Differential Disc Kits

Differential Clutch Packs

Differential Ring and Pinions

Differential End Yokes

Differential Lock Assemblies

Differential Air System Seal Housings

Differential Spools

Differential Carrier Bearings

Differential Lock Springs

Differential Pinion Bearing Kits

Complete Differentials

Differential Ring Gear Bolts

Bearing Race Drivers

Differential Carrier Bearing Shims

Differential Crush Sleeves

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 Drive Pinion Oil Deflectors

Differential Pinion Gear Washers

Limited Slip Differential Assemblies

Differential Spider and Pinion Gear Kits

Most Popular Differential Covers for 2008 Mercury Mountaineers

Enhance your 2008 Mercury Mountaineer with one of the 4 Differential Covers we have in stock, starting at just $52.99.

show more show less

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

from

$74.99

Chrome cover for 8.8″ Ford.

Product Features:

Fits Ford 8.8″
Chrome

from

$52.99

Product Features:

Fits standard rotation Dana Spicer 30
Chrome

from

$419.99

8.8″ Ford low profile TA HD Aluminum rear Cover. This cover will not fit vehicles with independent rear suspension.

Product Features:

Fits Ford 8.8″
Aluminum girdle cover

Best-Selling 2008 Mercury Mountaineer Differential Pinion Seals

Upgrade your Mountaineer with one of our 6 best-selling Differential Pinion Seals, earning an average 1 stars rating across 1 reviews.

show more show less

from

$5.99

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$10.99

Value-priced seal meets all cataloged application requirements.

Product Features:

Brand may vary by location

from

$17.49

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

from

$15.99

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

from

$8.99

Pinion seal for 7.5″, 8.8″, and 9.75″ Ford, and also 1985-’86 9″ Ford.Yukon Mighty seal.

Product Features:

Pinion seal
Fits Ford 7.5″, 8.8″ and some 9.75″
2.785″ O.D.

Top-Quality Differential Bearings for 2008 Mercury Mountaineers

Choose a high-quality OEM or aftermarket Differential Bearing for Mercury Mountaineers and enjoy top-notch performance from $6.99.

show more show less

from

$9.29

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

from

$19.99

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

from

$24.79

We develop and produce high-quality roller bearings, spherical bearings, and plain bearings worldwide for a wide range of applications.

Product Features:

Radial Ball Bearing, Both Sides Shield.
Coverage of classic and new high-tech solutions for the best system coverage

from

$24.29

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

from

$11.29

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

from

$6.99

Cross pin bolt for Chrysler 8.25″, 9.25″ rear, Ford 7.5″, 8.8″, GM 12 bolt car & truck, 7.2″ IFs, 7.5″, 7.6″, 8.0″, 8.25″ IFS & 8.5″.

Product Features:

Cross pin bolt for Chrysler 8.25″ and 9.25″ rear, Ford 7.5″ and 8.8″, GM 12 botl car and truck, 8.5″, 8.25″ IFS, 8.0″, 7.625″, 7.5″ and 7.2″ IFS

Top Picks for 2008 Mercury Mountaineer Rear Differential Cover Gaskets

Invest in one of our 4 durable Rear Differential Cover Gaskets for your 2008 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

show more show less

from

$8.99

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

from

$12.99

Product Features:

Cover gasket
Fits Dana Spicer 30

from

$12.99

8.8″ Ford cover gasket.

Product Features:

Cover gasket
Fits Ford 8.8″

from

$4.99

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

Product Features:

All products are designed to meet or exceed OE quality, form, fit and funtion.

Top-Rated Differential Oil for 2008 Mercury Mountaineers

Make a smart move for your 2008 Mercury Mountaineer with products all priced from $11.99 to $148.99.

show more show less

from

$41.99

Royal Purple Motor Oil is a specially formulated multi viscocity oil for use in gasoline and diesel engines of all types from cars and trucks to SUVs, motorcycles and boats. Royal Purple(R) Motor Oil with Synerlec(R) additive technology reduces friction, which results in a 1-3 percent increase in horsepower, lowers operating temperatures, provides superior corrosion protection, improves fuel economy, reduces emissions and extends oil life. A.P.I. Certified.

Product Features:

Better wear protection
Increased fuel efficiency
Better protection of the expensive catalytic emission system
Improved compatibility with fuels containing ethanol
Superior corrosion protection
Meets ILSAC GF-5 and Dexos1 performance requirements

from

$14.49

Valvoline DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, and Allison C-4.

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

$69.99

Valvoline SAE 75W-140 Full Synthetic Gear Oil provides the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Engineered to outperform, our formulation provides exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity and wear resistance, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. It’s recommended for conventional rear axles and transmissions requiring EP gear lubes under high speed, high load, high torque and high horsepower conditions.

Product Features:

EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -22F to 390F degrees
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
MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4
MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Ford M2C-192A, GM 12346140, Chrysler MS-8985 and API GL-5

from

$11.99

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands of many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON*, DEXRON*-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Product Features:

Formulated with premium 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

$18.99

We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil, the ultimate gear protection in hypoid rear differentials and non-synchronized manual transmissions. Our unique new flexible pouch makes getting into the tightest places to lubricate gears easier than ever and with less waste. The superior detergent package-based formulation contains fully synthetic basestocks and special additives that help protect parts from rust and corrosion while providing exceptional high and low temperature protection and excellent thermal stability, especially in demanding driving situations such as towing and off-roading. It contains an extreme pressure additive for better load carrying capacity, wear resistance additives that assist in protecting gear teeth, a limited slip additive for optimal clutch pack performance, and an anti-foaming agent for better lubrication and service life. Valvoline FlexFill SAE 75W-90 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance.

Product Features:

FLEXIBLE POUCH FOR EASIER USE WITH LESS WASTE in tight, hard to reach undercarriage situations.
EXCEPTIONAL HIGH AND LOW TEMPERATURE PROTECTION ranging from -30F to 300F degrees for dependable coverage year-round
REDUCES CHATTERING AND PROTECTS GEAR TEETH from oxidation, rust, and wear
MEETS THE DEMANDS OF CONVENTIONAL AND LIMITED SLIP REAR DIFFERENTIALS where API GL-5 is specified, as well as non-synchronized manual transmissions that require API GL-4 or MT-1 fluid
MEETS OR EXCEEDS PERFORMANCE REQUIREMENTS for Mack GO-H and GO-J; API GL-5 and API MT-1; MIL-PRF-2105E; and SAE J2360

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

from

$137.99

Redline Synthetic “Shock Proof” Oil. 4 Quarts.

Product Features:

Includes four quarts of Redline Shockproof oil

Top-Rated Differential Brands For Your 2008 Mercury Mountaineer

When it comes to finding the perfect Differential for your 2008 Mercury Mountaineer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 15 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 $7.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 2008 Mercury Mountaineer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 2008 Mercury Mountaineer Differentials

If you’re looking for a top-quality Differential for your 2008 Mercury Mountaineer, Advance Auto Parts has exactly what you need with our selection of Valvoline Differentials. We have 2 Valvoline Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.49 and an average cost of $42.24, you’ll find the perfect Differential for your needs and budget. Valvoline Differentials for the 2008 Mercury Mountaineer come highly rated, with over 366 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 $69.99

(364)

SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon

“Happy with purchase”

from $14.49

(2)

DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

“I’ve used this in my 2005 2500HD since I bought the truck with 20k on it now at 280k changed every other year maybe 40k I’d put on in two years, I pu”

Top-Quality National 2008 Mercury Mountaineer Differentials

For those in search of a high-quality Differential for their 2008 Mercury Mountaineer, 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 $7.99, with an average price of $8.64, 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.

from $9.29

(2)

Bearing Race

“Reasonable price and woks well. front diff 2006 Escalade esv”

from $7.99

(4)

Bearing Race

“Goes with M88010 bearing cup. Application was the pinion bearing race for a Ford 9 Inch on a 1957 Ford F-100.”

FAQs for 2008 Mercury Mountaineer Differentials

What are the best-selling Differentials for 2008 Mercury Mountaineers?

Out of 200 Differentials that fit 2008 Mercury Mountaineers, the following parts are the top sellers:

DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (12507273) – $18.99
Differential Shaft Lock Bolt (5707714) – $6.79

What’s the price range for 2008 Mercury Mountaineer Differentials?

The prices of Differentials for the 2008 Mercury Mountaineer range from $1.29 up to $1,303.99 for the most premium parts.

What is the average price of a Differential for a 2008 Mercury Mountaineer?

The average price for Differentials for the 2008 Mercury Mountaineer is $199.70. 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 Mercury Mountaineer model years?

Yes, we carry Differentials for 12 model years of Mercury Mountaineers between 1997 and 2010. The following model years are the most popular for Differential purchases: 2010, 2009, 2007, 2006, 2005, 2004, 2003, 2002, and 2001.

What are the cheapest Differentials for my 2008 Mercury Mountaineer?

The cheapest 2008 Mercury Mountaineer Differentials we carry are:

Differential Ring Gear Bolt (10282257) – $1.29
Ring Gear Bolt (20520509) – $1.99
Differential Ring Gear Bolt (10282436) – $1.99
Differential Cross Shaft (10282201) – $2.99
Differential Crush Sleeve (10282338) – $2.99

Does Advance Auto Parts sell Differentials for any other 2008 Mercury models?

Yes. We stock Differentials for 3 other popular 2008 Mercury models. Some of the most popular are 2008 Grand Marquis Differentials, 2008 Sable Differentials, 2008 Mariner Differentials, and 2008 Milan Differentials.

What are the top-rated Differentials that fit the 2008 Mercury Mountaineer?

The one 2008 Mercury Mountaineer Differential we have in stock is the Differential Ring Gear Bolt. It costs $1.29.

What types of Differentials do you sell for my 2008 Mercury Mountaineer?

As of 11/2/25, these are some of the most in-demand types of Differentials for a 2008 Mercury Mountaineer:

Can I get help with 2008 Mercury Mountaineer Differential orders?

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

What is your return policy for Mercury Mountaineer Differentials?

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

2008 Mercury Mountaineer Differentials

Motive Gear – Differential Pinion Nut (Part No.379570S)

Yukon Gear – O-Ring For Dana 30 & Model 35 Zip Locker Seal Housing (Part No.34005)

USA Standard Gear – Master Overhaul Kit for the Model 35 IFS Front Differential (Part No.37068)

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

Yukon Gear – Side Gear And Thrust Washer (0.750" Shaft) For 8.8" Ford (Part No.33298)

Yukon Gear – Dana 25, 27, 30, 44, Model 20 And Model 35, GM 7.5", 8.2", 8.5", 12P, 12T, C9.25 Rear Cover Bolt (Part No.33286)

Yukon Gear – Replacement Standard Open Carrier Case For Dana 30, 3.73 & Up (Part No.20026)

Yukon Gear – Positraction Internals For 8.8" Ford With 28 Spline Axles (Part No.16015)

Pro-King – Differential Internal Nest Kit (Part No.762B717A)

Yukon Gear – 8.8" Ford Tracloc Clutch Set, Both Sides (Part No.16018)

Motive Gear – Differential Ring and Pinion (Part No.F8.8-373A)

Dorman – Help – Pinion Crush Sleeves (Part No.81056)

Yukon Gear – 7.5", 8", 8.8", 9", 10.25" Ford Redi Sleeve Yoke Saver (Part No.30226)

Pro-King – Differential Cover Gasket (Part No.762B303)

B & M – Rear End Cover 1 EA B&M (Part No.40297)

Yukon Gear – Replacement Pinion Depth Shims For Dana 35, Model 35 & Chrysler 7.25" (Part No.55014)

Yukon Gear – Model 35 Roll Pin For Cross Pin Shaft, 0.190" Diameter (Part No.33320)

Yukon Gear – Set Up Bearing (Part No.56045)

Yukon Gear – Trao Loc Spring For Ford 8.8", 28 Spline (Part No.33515)

Yukon Gear – Trac Loc Positraction, Ford 8.8", 31 Spline (Part No.20069)

Yukon Gear – Pump Up Kit, Zip Locker (Part No.34031)

Yukon Gear – Ford 7.5" & 8.8" Ring Gear Bolt, Standard Open & Tracloc (Part No.33053)

Yukon Gear – Mini Spool For Ford 8.8" With 31 Spline Axles (Part No.32226)

Dorman – Differential Yoke including Seal and Pinion Nut (Part No.697-507)

Yukon Gear – Zip Locker For Dana 30 With 30 Spline Axles, 3.73 & Up (Part No.34017)

Yukon Gear – Dana 25 / 27 / 30 / 44 / 50 Inner Oil Slinger Replacement (Part No.33012)

Yukon Gear – Bearing Race Driver (Part No.56020)

Motive Gear – Differential Pinion Seal (Part No.470331N)

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

Yukon Gear – Chrome Cover For 8.8" Ford (Part No.32009)

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

Yukon Gear – 8.8" Ford Low Profile Ta HD Aluminum Rear Cover (Part No.32114)

Driveworks – Oil Seal (Part No.S-3604)

Driveworks – Oil Seal (Part No.S-714675)

Motive Gear – Differential Pinion Seal (Part No.470331N)

FAG US – Shaft Seal (Part No.SS2876)

FAG US – Shaft Seal (Part No.SS2865)

Yukon Gear – Pinion Seal For 7.5", 8.8", And 9.75" Ford, And Also 1985-’86 9" Ford (Part No.30037)

National – Bearing Race (Part No.LM501314)

National – Tapered Roller Bearing Cone (Part No.LM501349)

FAG US – Bearing – DGBB (Deep Groove Ball Bearing) (Part No.6208-C3)

FAG US – Cone (Part No.KM86649)

FAG US – Cup (Part No.M88010)

Yukon Gear – Cross Pin Bolt (Part No.33067)

Felpro – Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket (Part No.RDS 55460)

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

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

Pro-King – Differential Cover Gasket (Part No.762B303)

Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)

Valvoline – DEXRON – VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

Valvoline – SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon (Part No.887344)

Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)

Valvoline – Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-90, 1 Quart (Part No.889785)

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)