1991 Mercury Topaz Differentials
Keep Your 1991 Mercury Topaz in Top Shape with Quality Differentials
Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 1991 Mercury Topaz looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Front Differential Pinion Bearings, Differential Oil, and Differential Seals. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Differentials from Trusted Brands
Looking for a reliable Differential? We’ve got you covered with options from brands you know and trust like Royal Purple, Valvoline, and DriveWorks. For example, Royal Purple Differentials start at just $41.99 with an average 4.8 star rating. Valvoline and DriveWorks offer similar pricing and quality, backed by strong customer feedback. With over 686 reviews and a solid 5 star average, you can shop with confidence knowing other Mercury Topaz owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1991 Mercury Topaz Differential at Advance Auto Parts is around $21.60, with a range that starts at $6.69 and goes up to $69.99. With 16 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart, Tapered Cone/Cup Wheel Bearing Set, and Multi-Purpose Bearing start at just $11.99 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 1991 Mercury Topaz in peak condition, inside and out.
Find Your Specific 1991 Mercury Topaz Differentials
Looking for the perfect Differential for your 1991 Mercury Topaz? 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 Topaz. Whether you’re driving a 1991 model or another popular model year like
1985,
1986,
1987,
1988,
1989,
1990,
1992,
1993, and
1994, 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 1991 Mercury Topaz Differentials
National – Bearing Race (Part No.JL69310)
from
$7.29
Product Features:
See More
- 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
National – Bearing Race (Part No.LM501310)
from
$8.49
Product Features:
See More
- 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
National – Multi-Purpose Bearing (Part No.A-37)
from
$18.99
Product Features:
See More
- 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
FAG US – Bearing – DGBB (Deep Groove Ball Bearing) (Part No.6208-C3)
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:
See More
Product Features:
- Radial Ball Bearing, Both Sides Shield.
- Coverage of classic and new high-tech solutions for the best system coverage
FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT11)
from
$21.79
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:
See More
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
Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)
from
$26.99
Value-priced bearing meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
FAG US – Cup (Part No.LM67010)
from
$6.69
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:
See More
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
Driveworks – Camshaft Seal (Part No.S-99139)
FAG US – Shaft Seal (Part No.SS2421)
from
$14.29
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:
See More
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
Valvoline – SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon (Part No.887344)
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:
See More
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
Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)
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:
See More
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
Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)
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:
See More
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
National – Tapered Roller Bearing Cone (Part No.M86647)
from
$27.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
Product Features:
See More
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
Popular 1991 Mercury Topaz Differentials Categories
Most Popular Front Differential Pinion Bearing for 1991 Mercury Topazs
Enhance your 1991 Mercury Topaz with this popular Front Differential Pinion Bearing we have in stock, for $27.49.
National – Tapered Roller Bearing Cone (Part No.M86647)
from
$27.49
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
Product Features:
See More
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
Best-Selling 1991 Mercury Topaz Differential Oil
Upgrade your Topaz with one of our 3 best-selling Differential Oil, earning an average 5 stars rating across 497 reviews.
Royal Purple – High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (Part No.51530)
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:
See More
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
Valvoline – SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon (Part No.887344)
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:
See More
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
Valvoline – DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (Part No.798153)
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:
See More
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
Top-Quality Differential Seals for 1991 Mercury Topazs
Choose a high-quality OEM or aftermarket Differential Seal for Mercury Topazs and enjoy top-notch performance from $14.29.
Driveworks – Camshaft Seal (Part No.S-99139)
FAG US – Shaft Seal (Part No.SS2421)
from
$14.29
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:
See More
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
Top Picks for 1991 Mercury Topaz Differential Bearings
Invest in one of our 10 durable Differential Bearings for your 1991 Mercury, knowing you’re getting trusted brands and expert craftsmanship.
Driveworks – Tapered Cone/Cup Wheel Bearing Set (Part No.S-A-35)
from
$26.99
Value-priced bearing meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
National – Multi-Purpose Bearing (Part No.A-37)
from
$18.99
Product Features:
See More
- 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
National – Bearing Race (Part No.LM501310)
from
$8.49
Product Features:
See More
- 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
FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT37)
from
$28.49
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:
See More
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
FAG US – Bearing – DGBB (Deep Groove Ball Bearing) (Part No.6208-C3)
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:
See More
Product Features:
- Radial Ball Bearing, Both Sides Shield.
- Coverage of classic and new high-tech solutions for the best system coverage
FAG US – Cone (Part No.KM86649)
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:
See More
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
FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT11)
from
$21.79
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:
See More
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
FAG US – Cup (Part No.LM501310)
from
$9.99
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:
See More
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
National – Bearing Race (Part No.JL69310)
from
$7.29
Product Features:
See More
- 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
FAG US – Cup (Part No.LM67010)
from
$6.69
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:
See More
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
Top-Rated Differential Brands For Your 1991 Mercury Topaz
When it comes to finding the perfect Differential for your 1991 Mercury Topaz, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Differential brands including Royal Purple, Valvoline, and DriveWorks, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $26.99. Purchasing a Differential from us here at Advance Auto Parts is a smart move for both you and your 1991 Mercury Topaz, providing peace of mind with parts that meet or exceed OEM standards.
Popular Royal Purple 1991 Mercury Topaz Differentials
If you’re looking for a top-quality Differential for your 1991 Mercury Topaz, 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 $41.99, you’ll find the perfect Differential for your needs and budget. Royal Purple Differentials for the 1991 Mercury Topaz come highly rated, with over 133 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.
from
$41.99
(133)
High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart
“The best”
Top-Quality Valvoline 1991 Mercury Topaz Differentials
For those in search of a high-quality Differential for their 1991 Mercury Topaz, Advance Auto Parts offers a great selection of Valvoline Differentials. With 1 Valvoline 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 $69.99, giving you a range of options to suit your budget. Backed by over 364 customer ratings and an average rating of 4.8 stars, Valvoline Differentials provide both reliability and excellent performance. Choosing a Valvoline Differential from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
from
$69.99
(364)
SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon
“Happy with purchase”
FAQs for 1991 Mercury Topaz Differentials
What are the best-selling Differentials for 1991 Mercury Topazs?
Out of 16 Differentials that fit 1991 Mercury Topazs, the following parts are the top sellers:
- DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
- Tapered Cone/Cup Wheel Bearing Set (5050723) – $26.99
- Multi-Purpose Bearing (3275892) – $18.99
What’s the price range for 1991 Mercury Topaz Differentials?
The prices of Differentials for the 1991 Mercury Topaz range from $6.69 up to $69.99 for the most premium parts.
What is the average price of a Differential for a 1991 Mercury Topaz?
The average price for Differentials for the 1991 Mercury Topaz is $21.60. 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 Topaz model years?
What are the cheapest Differentials for my 1991 Mercury Topaz?
The cheapest 1991 Mercury Topaz Differentials we carry are:
- Cup (50211146) – $6.69
- Bearing Race (3277119) – $7.29
- Bearing Race (3277399) – $8.49
- Cup (50206181) – $9.99
- DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart (12079139) – $11.99
Does Advance Auto Parts sell Differentials for any other 1991 Mercury models?
Yes. We stock Differentials for 5 other popular 1991 Mercury models. Some of the most popular are 1991 Cougar Differentials, 1991 Grand Marquis Differentials, 1991 Colony Park Differentials, 1991 Capri Differentials, and 1991 Tracer Differentials.
What are the top-rated Differentials that fit the 1991 Mercury Topaz?
Based on 686 reviews by customers, our 1991 Mercury Topaz Differentials have an average customer rating of 5 stars. These are the highest-rated categories of Differentials for the 1991 Mercury Topaz and their top-rated products:
- Differential Bearings
- Multi-Purpose Bearing (3275892) – $18.99
- Tapered Cone/Cup Wheel Bearing Set (5050723) – $26.99
- Differential Oil
- High Performance 5W-30 Synthetic Engine Oil, Better Wear Protection, 5 Quart (11150912) – $41.99
- SynPower Transmission & Differential Gear Oil: Full Synthetic 75W-140, 1 Gallon (12048191) – $69.99
What types of Differentials do you sell for my 1991 Mercury Topaz?
As of 11/2/25, these are some of the most in-demand types of Differentials for a 1991 Mercury Topaz:
Can I get help with 1991 Mercury Topaz 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 Topaz Differentials?
Advance Auto Parts keeps returns simple. For new Mercury Topaz Differentials and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.