1990 Mercury Cougar Differentials

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Keep Your 1990 Mercury Cougar in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1990 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearings, Rear Housing Cover Gaskets, and Differential Covers. 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, National, and Royal Purple. For example, Motive Gear Differentials start at just $6.99 with an average 4.1 star rating. National and Royal Purple offer similar pricing and quality, backed by strong customer feedback. With over 145 reviews and a solid 4.1 star average, you can shop with confidence knowing other Mercury Cougar owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1990 Mercury Cougar Differential at Advance Auto Parts is around $186.18, with a range that starts at $1.29 and goes up to $1,115.99. With 130 options in stock from 15 trusted brands, finding the right fit is easy. Popular picks like Valvoline Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Quart, 889787, Dorman – Help Differential Shaft Lock Bolt, 81048, and Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 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 1990 Mercury Cougar in peak condition, inside and out.

Essential 1990 Mercury Cougar Differentials

Driveworks – Driveworks Taper Bearing Cup, S-LM-501314 (Part No.S-LM-501314)

Driveworks Taper Bearing Cup, S-LM-501314

from

$7.99
Value-priced bearing meets all cataloged application requirements.
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Yukon Gear – "Yukon Gear Trac Loc Case For Ford 9"", 20079" (Part No.20079)

"Yukon Gear Trac Loc Case For Ford 9"", 20079"

from

$339.99
“9”” TracLoc case, bare, 28 & 31 spline, 2or4 PIN, 4 TAB clutches.”
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Pro-King – Pro-King Differential Internal Nest Kit, 762B717 (Part No.762B717)

Pro-King Differential Internal Nest Kit, 762B717

from

$239.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – "Yukon Gear Cover Bolt For Ford 7.5"", 8.8"" & 9.75"", 33554" (Part No.33554)

"Yukon Gear Cover Bolt For Ford 7.5"", 8.8"" & 9.75"", 33554"

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.”
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Yukon Gear – "Yukon Gear Extra HD 3.062"" Nodular Iron Dropout For Ford 9"", 32099" (Part No.32099)

"Yukon Gear Extra HD 3.062"" Nodular Iron Dropout For Ford 9"", 32099"

from

$615.99
“Yukon Extra HD 3.062″” nodular Iron dropout for Ford 9″”. Yukon nodular iron dropouts feature a 5/8″” cap bolt and forged caps for maximum strength. Rated up to 1200HP!”
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Yukon Gear – Yukon Gear Crush Sleeve, 33085 (Part No.33085)

Yukon Gear Crush Sleeve, 33085

from

$9.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear 8.8"" Ford Tracloc Clutch Set, Both Sides, 16017" (Part No.16017)

"Yukon Gear 8.8"" Ford Tracloc Clutch Set, Both Sides, 16017"

from

$207.99
Yukon Gear & Axle clutch kits fit popular Ford diffs outfitted with a Trac Loc style positraction unit feature stout clutch plates, ensuring total traction and long-lasting performance.
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Yukon Gear – "Yukon Gear Trac-Loc For Ford 8"" Wtih 31 Spline Axles – Street Design, 26004" (Part No.26004)

"Yukon Gear Trac-Loc For Ford 8"" Wtih 31 Spline Axles - Street Design, 26004"

from

$819.99
The Yukon Dura Grip provides aggressive yet smooth traction to give you the confidence & performance you need. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. The Yukon-Trac Loc uses a nodular case, billet side hat, and forged internals for higher strength than stock Trac-Locs. The units use composite clutches for high performance and long life. All units are Rebuildable. Yukon offers a one year warranty against manufacturing defects.
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Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)

Driveworks Tapered Roller Bearing, S-LM-603012

from

$7.99
Driveworks Tapered Roller Bearing, S-LM-603012.
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Richmond Gear – Richmond Gear Ring and Pinion Set, F9620 (Part No.F9620)

Richmond Gear Ring and Pinion Set, F9620

from

$185.99
Richmond Gear Ring and Pinion Set, F9620.
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Yukon Gear – "Yukon Gear Pinion Install Kit for Ford Daytona 9"" Differential, 13045" (Part No.13045)

"Yukon Gear Pinion Install Kit for Ford Daytona 9"" Differential, 13045"

from

$284.99
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused. This kit features Timken bearings and races along with high-quality seals and small parts. Yukon does extensive research for each application to make sure your kit will arrive with all the correct parts you need to install your gear set.
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Yukon Gear – "Yukon Gear Un-Notched Cross Pin Shaft for 7.5"" Ford. Oem, Not Auburn Gear, 33330" (Part No.33330)

"Yukon Gear Un-Notched Cross Pin Shaft for 7.5"" Ford. Oem, Not Auburn Gear, 33330"

from

$36.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Standard Open & Tracloc Pinion Gear and Thrust Washer for 7.5"" Ford, 33296" (Part No.33296)

"Yukon Gear Standard Open & Tracloc Pinion Gear and Thrust Washer for 7.5"" Ford, 33296"

from

$10.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Forged Yoke for Ford 9"" with 28 Spline Pinion and A 1350 U/Joint Size, 41064" (Part No.41064)

"Yukon Gear Forged Yoke for Ford 9"" with 28 Spline Pinion and A 1350 U/Joint Size, 41064"

from

$209.99
Yukon Gear and Axle manufactures a complete line of general replacement and performance series of pinion yokes for many street, racing, and heavy-duty off-road applications.
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Motive Gear – Motive Gear Differential Internal Carrier Gear Kit, F7.5BI (Part No.F7.5BI)

Motive Gear Differential Internal Carrier Gear Kit, F7.5BI

from

$149.99
Motive Gear Differential Internal Carrier Gear Kit, F7.5BI.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Yukon Gear – "Yukon Gear Carrier Installation Kit for Ford 8.8"" Differential, 57007" (Part No.57007)

"Yukon Gear Carrier Installation Kit for Ford 8.8"" Differential, 57007"

from

$134.99
Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limited slip differential, a mechanical locker, or an air operated locker. These kits contain carrier bearings and races and a carrier shim kit.
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USA Standard Gear – USA Standard Gear Differential Rebuild Kit, 37029 (Part No.37029)

USA Standard Gear Differential Rebuild Kit, 37029

from

$249.99
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.
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Powertrax – Powertrax Differential Lock Assembly, 1810-LR (Part No.1810-LR)

Powertrax Differential Lock Assembly, 1810-LR

from

$339.99
For vehicles that are driven daily, the Power Trax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Power Trax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Power Trax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Power Trax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds.
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Motive Gear – Motive Gear Differential Pinion Nut, 379570S (Part No.379570S)

Motive Gear Differential Pinion Nut, 379570S

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.
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Motive Gear – Motive Gear Bearing Kit, R9R28 (Part No.R9R28)

Motive Gear Bearing Kit, R9R28

from

$106.99
Motive Gear Differential Bearing Kits Include Front & Rear Pinion Bearing, Pinion Seal, Carrier Bearings, Pilot Bearing Where Applicable, Gear Marking Compound, Crush Sleeve, Pinion Nut, Brush, Thread Locking Compound And Cover Gasket Or Rtv
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Motive Gear – Motive Gear Differential Gear Install Kit, F7.5IK (Part No.F7.5IK)

Motive Gear Differential Gear Install Kit, F7.5IK

from

$35.49
Motive Gear Differential Gear Install Kit, F7.5IK.
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Richmond Gear – Richmond Gear Differential Pinion Shaft, CSPF88L (Part No.CSPF88L)

Richmond Gear Differential Pinion Shaft, CSPF88L

from

$26.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND.
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Yukon Gear – "Yukon Gear 3.062"" Side Adjuster for Ford 9"", 32139" (Part No.32139)

"Yukon Gear 3.062"" Side Adjuster for Ford 9"", 32139"

from

$94.99
Yukon Gear & Axle dropouts are heavy duty. They feature upgraded nodular iron construction and a larger-than-OEM design to provide unrivaled strength and reliability in racing and off-road applications.
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Yukon Gear – "Yukon Gear Side Gear and Thrust Washer (0.875"" Shaft) for 8.8"" Ford, 33300" (Part No.33300)

"Yukon Gear Side Gear and Thrust Washer (0.875"" Shaft) for 8.8"" Ford, 33300"

from

$11.99
Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts and washers, axle studs, thrust washers and much, much more. For all your differential small parts needs, look no further than Yukon.
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Yukon Gear – "Yukon Gear Dropout Housing Stud For Ford 8"" & 9"", 32338" (Part No.32338)

"Yukon Gear Dropout Housing Stud For Ford 8"" & 9"", 32338"

from

$7.99
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.
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Yukon Gear – "Yukon Gear Ford 8"" & 9"" Tracloc Ring Gear Bolt, 33044" (Part No.33044)

"Yukon Gear Ford 8"" & 9"" Tracloc Ring Gear Bolt, 33044"

from

$4.99
“Ford 8″” & 9″” TracLoc ring gear bolt, 1-1/4″” long.”
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Yukon Gear – "Yukon Gear 8"" Ford Pinion Seal, 30180" (Part No.30180)

"Yukon Gear 8"" Ford Pinion Seal, 30180"

from

$24.99
Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.
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Most Popular Differential Bearing for 1990 Mercury Cougars

Enhance your 1990 Mercury Cougar with this popular Differential Bearing we have in stock, for $7.99.

Driveworks – Driveworks Tapered Roller Bearing, S-LM-603012 (Part No.S-LM-603012)

Driveworks Tapered Roller Bearing, S-LM-603012

from

$7.99
Driveworks Tapered Roller Bearing, S-LM-603012.
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Best-Selling 1990 Mercury Cougar Rear Housing Cover Gaskets

Upgrade your Cougar with one of our 2 best-selling Rear Housing Cover Gaskets, earning an average 4.5 stars rating across 3 reviews.

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

Felpro Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket, RDS 55460

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.
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Felpro – Felpro Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket, RDS 55459 (Part No.RDS 55459)

Felpro Axle Housing Cover Gasket Round Shaped 10 Bolt Hole Gasket, RDS 55459

from

$9.99
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.
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Top-Quality Differential Covers for 1990 Mercury Cougars

Choose a high-quality OEM or aftermarket Differential Cover for Mercury Cougars and enjoy top-notch performance from $99.99.

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

"Yukon Gear Steel Cover for Ford 8.8"", 32328"

from

$99.99
These Yukon replacement diff covers are a direct bolt-on.
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Yukon Gear – Yukon Gear Ford OEM Steel Differential Cover, 32364 (Part No.32364)

Yukon Gear Ford OEM Steel Differential Cover, 32364

from

$99.99
These Yukon replacement diff covers are a direct bolt-on.
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Our Top Pick for a 1990 Mercury Cougar Differential Pinion Seal

Invest in a durable Differential Pinion Seal for your 1990 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

Schaeffler – Schaeffler Shaft Seal, SS2865 (Part No.SS2865)

Schaeffler Shaft Seal, SS2865

from

$11.99
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.
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Top-Rated Differential Oil for 1990 Mercury Cougars

Make a smart move for your 1990 Mercury Cougar with products all priced from $19.99 to $137.99.

Royal Purple – Royal Purple MaxGear SAE 75W140 High Performance Gear Oil w/Friction Modifier Additive, 1 QT, 01301 (Part No.01301)

Royal Purple MaxGear SAE 75W140 High Performance Gear Oil w/Friction Modifier Additive, 1 QT, 01301

from

$28.49
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.
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Valvoline – Valvoline Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Quart, 889787 (Part No.889787)

Valvoline Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Quart, 889787

from

$19.99
We’ve squeezed innovation into every ounce of Valvoline FlexFill SAE 75W-140 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-140 Full Synthetic Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels for limited slip performance. Volume: 1 quart.
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Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.15002)

Yukon Gear 3 Qt - Penzoil 80W90 Conventional Gear Oil, 15002

from

$44.99
Union 76 gear oil is a conventional non-synthetic 80W90 formulation designed for all types of differentials.
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Yukon Gear – "Yukon Gear Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)

"Yukon Gear Redline Synthetic ""Shock Proof"" Oil - 4 Quarts, 15004"

from

$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.904891)

Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891

from

$35.99
Choosing an automatic transmission fluid just got easier. Valvoline Full Synthetic MaxLife Multi-Vehicle ATF, the #1 ATF product, is suitable for use in 95% of ATF vehicles in operation with US registered light duty applications. And now, it€™s also recommended for most belt and chain-driven continuously variable transmissions (CVT). Featuring advanced additives to prevent the major causes of transmission breakdown, it€™s designed to help prevent leaks, reduce wear and tear, and maximize performance €“ all for much longer than conventional fluids. It has improved thermal stability for longer fluid life, better viscosity stability for consistent transmission operation, and frictional enhancements for smooth gear engagements. Whether your vehicle has a CVT or traditional automatic, Valvoline MaxLife Multi-Vehicle ATF is suitable for a broad range of transmissions including Ford, GM, Toyota, Honda, Nissan, Hyundai, Subaru, BMW, Mercedes, Volvo, VW and Audi vehicles. It€™s specifically recommended for use in the following applications: GM DEXRON-II, DEXRON-III, DEXRON-VI, and DEX-CVT; Ford MERCON LV; Toyota/Lexus Type T, T-II, T-IV, WS, CVTF FE, and CVTF TC. For the many miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
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Top-Rated Differential Brands For Your 1990 Mercury Cougar

When it comes to finding the perfect Differential for your 1990 Mercury Cougar, 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 Royal Purple, 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 $6.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1990 Mercury Cougar, providing peace of mind with parts that meet or exceed OEM standards.

Popular Royal Purple 1990 Mercury Cougar Differentials

If you’re looking for a top-quality Differential for your 1990 Mercury Cougar, Advance Auto Parts has exactly what you need with our selection of Royal Purple Differentials. We have 1 Royal Purple Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $28.49, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 1990 Mercury Cougar come highly rated, with over 57 customer reviews and an impressive average rating of 4.8 stars. Choosing a Royal Purple Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

Top-Quality National 1990 Mercury Cougar Differentials

For those in search of a high-quality Differential for their 1990 Mercury Cougar, 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 $91.99, 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.
National Axle Differential Bearing & Seal Kit, RA-311
from $171.99
(4)
National Axle Differential Bearing & Seal Kit, RA-311
“Complete kit with for my rebuild. I was lucky to get awesome service from the salesman. Parts were very reasonable price-wise.”
National Bearing Race, LM501314
from $11.99
(2)
National Bearing Race, LM501314
“good quality & price”

FAQs for 1990 Mercury Cougar Differentials

What are the best-selling Differentials for 1990 Mercury Cougars?

Out of 130 Differentials that fit 1990 Mercury Cougars, the following parts are the top sellers:

What’s the price range for 1990 Mercury Cougar Differentials?

The prices of Differentials for the 1990 Mercury Cougar range from $1.29 up to $1,115.99 for the most premium parts.

What is the average price of a Differential for a 1990 Mercury Cougar?

The average price for Differentials for the 1990 Mercury Cougar is $186.18. 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 Cougar model years?

Yes, we carry Differentials for 33 model years of Mercury Cougars between 1967 and 2002. The following model years are the most popular for Differential purchases: 2002, 2001, 2000, 1999, 1997, 1996, 1995, 1994, and 1993.

What are the cheapest Differentials for my 1990 Mercury Cougar?

The cheapest 1990 Mercury Cougar Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 1990 Mercury models?

Yes. We stock Differentials for 3 other popular 1990 Mercury models. Some of the most popular are 1990 Grand Marquis Differentials, 1990 Colony Park Differentials, 1990 Topaz Differentials, and 1990 Sable Differentials.

What are the top-rated Differentials that fit the 1990 Mercury Cougar?

The one 1990 Mercury Cougar Differential we have in stock is the Pro-King Differential Ring Gear Bolt, 761A935. It costs $1.29.

What types of Differentials do you sell for my 1990 Mercury Cougar?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 1990 Mercury Cougar:

Can I get help with 1990 Mercury Cougar 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 Cougar Differentials?

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