1999 Mercury Cougar Differentials
Keep Your 1999 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 1999 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Bearing Kits, Differential Ring Gear Bolts, and Differential Pinion Shaft Lock Bolts. 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 National. For example, National Differentials start at just $41.49 with an average 4.3 star rating. With over 1 reviews and a solid 5.0 star average, you can shop with confidence knowing other Mercury Cougar owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1999 Mercury Cougar Differential at Advance Auto Parts is around $45.09, with a range that starts at $1.29 and goes up to $242.99. With 11 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002, Pro-King Differential Rebuild Kit, 762B004, and Pro-King Differential Ring Gear Bolt, 761A935 start at just $1.29 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 Hubs and Hub Assemblies. At Advance Auto Parts, we’re here to help you keep your 1999 Mercury Cougar in peak condition, inside and out.
Find Your Specific 1999 Mercury Cougar Differentials
Looking for the perfect Differential for your 1999 Mercury Cougar? 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 Cougar. Whether you’re driving a 1999 model or another popular model year like
1992,
1993,
1994,
1995,
1996,
1997,
2000,
2001, and
2002, we’ve got you covered. Purchasing Differentials from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Differentials that fit your vehicle.
Essential 1999 Mercury Cougar Differentials
Yukon Gear – "Yukon Gear Standard Open Spider Gear Kit, Ford 8""/9"", 28 Spline, 2-Pinion Design, 16031" (Part No.16031)
from
$285.99
Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.
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Motive Gear – Motive Gear Differential Carrier Shim Kit, 1101 (Part No.1101)
Yukon Gear – "Yukon Gear Shim Kit for 9"" Ford Tracloc Clutch, 16030" (Part No.16030)
from
$46.99
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 other general maintenance items. You can count on Yukon to fulfill all your differential small parts needs.
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Pro-King – Pro-King Differential Pinion Shim Kit, 742G202 (Part No.742G202)
from
$6.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Motive Gear – Motive Gear Master Bearing Kit, R9R28MKT (Part No.R9R28MKT)
from
$147.99
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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Yukon Gear – "Yukon Gear Master Overhaul Kit for Ford 8"" Differential, 14047" (Part No.14047)
from
$302.99
Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs. This kit uses Timken bearings and races along with high quality seals and small parts. Yukon Master Overhaul Kits are the most comprehensive and complete kits on the market because Yukon does extensive research to ensure that every kit has everything you need for your application.
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Motive Gear – Motive Gear Bearing Kit, R9R28 (Part No.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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Pro-King – Pro-King Differential Cover Gasket, 762B303 (Part No.762B303)
from
$4.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – Yukon Gear Crush Sleeve, 33093 (Part No.33093)
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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Motive Gear – Motive Gear Differential Crush Sleeve, B7A4662A (Part No.B7A4662A)
from
$3.99
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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Yukon Gear – "Yukon Gear Crush Sleeve Eliminator Kit for Ford 8.8"" & 7.5"", 55040" (Part No.55040)
from
$96.99
Yukon shim kits are precision machined and tailored for each individual application to ensure you have the right shims for every set up.
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Motive Gear – Motive Gear Nodular Differential Housing, 26325 (Part No.26325)
Yukon Gear – "Yukon Gear Ford 9"" 3.250"" Aluminum Case, HD Dropout Housing, 32035" (Part No.32035)
from
$679.99
“9”” Yukon 3.250″” aluminum case, HD dropout housing with forged caps. The Yukon aluminum dropouts feature a adjuster lock which is offset 90 degrees, offering an uninterrupted bearing cap for higher strenth. Made from A356-T6 aluminum and featuring a through-bolt desgin, this dropout is built for high horsepower & tall tires.Rated up to 1000HP!”
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Yukon Gear – "Yukon Gear 9"" 3.250"" Aluminum Case, HD Drop Out Housing, With Load Bolt, 32152" (Part No.32152)
from
$1070.00
“9”” Yukon 3.250″” aluminum case, HD Drop Out housing, with load bolt. Made from A356-T6 aluminum & featuring a through bolt design, this dropout is rated for up to 1400 horsepower!”
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Valvoline – Valvoline Flex Fill Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Quart, 889787 (Part No.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 Redline Synthetic ""Shock Proof"" Oil – 4 Quarts, 15004" (Part No.15004)
from
$137.99
Redline Heavy Shockproof Gear Oil is formulated to provide lasting protection.
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Royal Purple – Royal Purple MaxGear SAE 75W90 High Performance Gear Oil w/Friction Modifier Additive, 1 QT, 01300 (Part No.01300)
from
$26.49
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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Dorman – Help – Dorman – Help Differential Shaft Lock Bolt, 81048 (Part No.81048)
from
$6.79
This differential pinion shaft lock bolt is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.
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Pro-King – Pro-King Differential Cross Shaft, 742G930 (Part No.742G930)
from
$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Yukon Gear – "Yukon Gear Ford 8"" & 9"" Standard Open, Ag, & Detroit Locker Ring Gear Bolt, 33058" (Part No.33058)
from
$5.99
“Ford 8″” & 9″” standard Open, AG, & Detroit locker ring gear bolt. 7/16″” head, .925″” long.”
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ARP Auto Racing – "ARP Auto Racing For Use With Ford 9"" Using 5/8""Socket, 0.94""L Under Head, 7/16""-20, 12Point Head, 250-3002" (Part No.250-3002)
from
$43.99
The tremendous shock loads generated at launch by most any drag racing vehicle equipped with today sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. they are forged from premium grade 8740 chrome moly steel and are heat treated to a nominal rating of 200,000 PSI tensile strength. Specially hardened, precision ground washers are included where required. Available to fit most any ring gear setup ranging from popular 9 Inch Ford GM 10 and 12 bolt rear ends to the beefy strange differentials found in top fuel and funny car applications.
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Yukon Gear – "Yukon Gear Ford 8"" & 9"" Tracloc Ring Gear Bolt, 33044" (Part No.33044)
Yukon Gear – "Yukon Gear Ford 8"" & 9"" Standard Open, Ag, & Detroit Locker Ring Gear Bolt, 33043" (Part No.33043)
from
$5.99
“Ford 8″” & 9″” standard Open, AG, & Detroit locker ring gear bolt, 1.0″” long, Ford.”
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National – National Shaft Repair Sleeve, 99139 (Part No.99139)
from
$41.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
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Popular 1999 Mercury Cougar Differentials Categories
Most Popular Differential Bearing Kit for 1999 Mercury Cougars
Enhance your 1999 Mercury Cougar with this popular Differential Bearing Kit we have in stock, for $90.99.
Pro-King – Pro-King Differential Rebuild Kit, 762B004 (Part No.762B004)
from
$90.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket. All products are designed to meet or exceed OE quality, form, fit and function.
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Best-Selling 1999 Mercury Cougar Differential Ring Gear Bolt
Upgrade your Cougar with our best-selling Differential Ring Gear Bolt.
Pro-King – Pro-King Differential Ring Gear Bolt, 761A935 (Part No.761A935)
from
$1.29
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Top-Quality Differential Pinion Shaft Lock Bolts for 1999 Mercury Cougars
Choose a high-quality OEM or aftermarket Differential Pinion Shaft Lock Bolt for Mercury Cougars and enjoy top-notch performance from $2.99.
Pro-King – Pro-King Differential Cross Shaft, 742G930 (Part No.742G930)
from
$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Our Top Pick for a 1999 Mercury Cougar Differential Crush Sleef
Invest in a
durable Differential Crush Sleef for your 1999 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
Pro-King – Pro-King Differential Crush Sleeve, 761A034 (Part No.761A034)
from
$2.99
Pro-King is the leading supplier of transmission and driveline products in the aftermarket.
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Differential Oil for 1999 Mercury Cougars
Make a smart move for your 1999 Mercury Cougar with products all priced from $35.99 to $44.99.
Yukon Gear – Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (Part No.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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Valvoline – Valvoline Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 GA, 904891 (Part No.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 1999 Mercury Cougar
When it comes to finding the perfect Differential for your 1999 Mercury Cougar, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Differential brands including National, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $41.49. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1999 Mercury Cougar, providing peace of mind with parts that meet or exceed OEM standards.
Popular National 1999 Mercury Cougar Differentials
If you’re looking for a top-quality Differential for your 1999 Mercury Cougar, Advance Auto Parts has exactly what you need with our selection of National Differentials. We have 1 National Differentials in stock for this fitment, all known for their durability and precision fit. With prices starting at just $41.49, you’ll find the perfect Differential for your needs and budget. National Differentials for the 1999 Mercury Cougar come highly rated, with over 1 customer reviews and an impressive average rating of 4.3 stars. Choosing a National Differential from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$41.49
(1)
National Shaft Repair Sleeve, 99139
“used these speedy sleeves on the front axle of my Kubota with the wheel seals,saved me from spending 15 times more on the axle’s, Thank’s”
FAQs for 1999 Mercury Cougar Differentials
What are the best-selling Differentials for 1999 Mercury Cougars?
Out of 11 Differentials that fit 1999 Mercury Cougars, the following parts are the top sellers:
- Yukon Gear 3 Qt – Penzoil 80W90 Conventional Gear Oil, 15002 (11644279) – $44.99
- Pro-King Differential Rebuild Kit, 762B004 (10282430) – $90.99
- Pro-King Differential Ring Gear Bolt, 761A935 (10282257) – $1.29
What’s the price range for 1999 Mercury Cougar Differentials?
The prices of Differentials for the 1999 Mercury Cougar range from $1.29 up to $242.99 for the most premium parts.
What is the average price of a Differential for a 1999 Mercury Cougar?
The average price for Differentials for the 1999 Mercury Cougar is $45.09. 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?
What are the cheapest Differentials for my 1999 Mercury Cougar?
The cheapest 1999 Mercury Cougar Differentials we carry are:
- Pro-King Differential Ring Gear Bolt, 761A935 (10282257) – $1.29
- Pro-King Differential Crush Sleeve, 761A034 (10282338) – $2.99
- Pro-King Differential Cross Shaft, 742G930 (10282201) – $2.99
- Pro-King Differential Cover Gasket, 762B303 (10282380) – $4.99
- Pro-King Differential Pinion Shim Kit, 742G202 (10282353) – $6.99
Does Advance Auto Parts sell Differentials for any other 1999 Mercury models?
Yes. We stock Differentials for 5 other popular 1999 Mercury models. Some of the most popular are 1999 Grand Marquis Differentials, 1999 Mountaineer Differentials, 1999 Tracer Differentials, 1999 Mystique Differentials, and 1999 Villager Differentials.
What are the top-rated Differentials that fit the 1999 Mercury Cougar?
The one 1999 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 1999 Mercury Cougar?
As of 8/2/26, these are some of the most in-demand types of Differentials for a 1999 Mercury Cougar:
Can I get help with 1999 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.