2004 Subaru Legacy Differentials

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Keep Your 2004 Subaru Legacy in Top Shape with Quality Differentials

Whether you’re repairing or upgrading your Differential, using high-quality parts is key to keeping your 2004 Subaru Legacy looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Differential Mount Bushings, Front Differential Pinion Bearings, and Differential Oil. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

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 Transfer Cases. At Advance Auto Parts, we’re here to help you keep your 2004 Subaru Legacy in peak condition, inside and out.

Essential 2004 Subaru Legacy Differentials

Valvoline – Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976 (Part No.904976)

Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976

from

$15.99
Modern transmissions are better than ever, with more gears to help improve fuel efficiency and acceleration. Greater performance calls for greater protection. Valvoline Extended Protection Full Synthetic ATF features our exclusive Dual Defense Additive Technology for two layers of protection against metal-on-metal contact and thermal breakdown, all while minimizing wear on clutch components. In fact, Valvoline Extended Protection Full Synthetic ATF is 45% stronger against breakdown compared to major brand DEX/MERC oxidative PDSC performance. Proven to maximize transmission life, our patented formula keeps your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand.
See More

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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Whiteline – Whiteline Rear Differential Bushings – Mount in Cradle Inserts, KDT903 (Part No.KDT903)

Whiteline Rear Differential Bushings - Mount in Cradle Inserts, KDT903

from

$53.99
Whiteline’s differential insert bushings work within the voids of the original factory bushing to ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.
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Nolathane – Nolathane Differential – Mount In Cradle Bushing – 41mm Tube Length, REV202.0004 (Part No.REV202.0004)

Nolathane Differential - Mount In Cradle Bushing - 41mm Tube Length, REV202.0004

from

$60.99
With over 40 years of history, Nolathane remains the number 1 replacement and enhancement bushing and chassis component brand throughout Australia & New Zealand and now boasts a warehouse in California & catalog to suit the North American market.
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Whiteline – Whiteline Rear Differential Cradle Bushing, W91380 (Part No.W91380)

Whiteline Rear Differential Cradle Bushing, W91380

from

$86.99
Whiteline’s differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.
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Nolathane – Nolathane Differential – Mount Support Outrigger Bushing, REV086.0018 (Part No.REV086.0018)

Nolathane Differential - Mount Support Outrigger Bushing, REV086.0018

from

$62.99
Nolathane’s differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.
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Whiteline – Whiteline Rear Differential Outrigger Bushing, W91379 (Part No.W91379)

Whiteline Rear Differential Outrigger Bushing, W91379

from

$77.99
Whiteline’s differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.
See More

National – National Multi-Purpose Bearing, 30208 (Part No.30208)

National Multi-Purpose Bearing, 30208

from

$33.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
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National – National Multi-Purpose Bearing, 32306 (Part No.32306)

National Multi-Purpose Bearing, 32306

from

$44.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
See More

National – National Multi-Purpose Bearing, 32206 (Part No.32206)

National Multi-Purpose Bearing, 32206

from

$30.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
See More

Driveworks – Driveworks Tapered Roller Bearing, S-32207 (Part No.S-32207)

Driveworks Tapered Roller Bearing, S-32207

from

$20.99
Driveworks Tapered Roller Bearing, S-32207.
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National – National Axle Differential Seal, 711090 (Part No.711090)

National Axle Differential Seal, 711090

from

$15.99
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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National – National Shaft Repair Sleeve, 99139 (Part No.99139)

National Shaft Repair Sleeve, 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.
See More

National – National Axle Differential Seal, 711091 (Part No.711091)

National Axle Differential Seal, 711091

from

$14.99
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.
See More

National – National Axle Differential Seal, 711092 (Part No.711092)

National Axle Differential Seal, 711092

from

$11.99
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.
See More

Most Popular Differential Mount Bushing for 2004 Subaru Legacies

Enhance your 2004 Subaru Legacy with this popular Differential Mount Bushing we have in stock, for $53.99.

Whiteline – Whiteline Rear Differential Bushings – Mount in Cradle Inserts, KDT903 (Part No.KDT903)

Whiteline Rear Differential Bushings - Mount in Cradle Inserts, KDT903

from

$53.99
Whiteline’s differential insert bushings work within the voids of the original factory bushing to ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels.
See More

Best-Selling 2004 Subaru Legacy Front Differential Pinion Bearings

Upgrade your Legacy with one of our 3 best-selling Front Differential Pinion Bearings.

National – National Multi-Purpose Bearing, 32206 (Part No.32206)

National Multi-Purpose Bearing, 32206

from

$30.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
See More

National – National Multi-Purpose Bearing, 32306 (Part No.32306)

National Multi-Purpose Bearing, 32306

from

$44.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
See More

Driveworks – Driveworks Tapered Roller Bearing, S-32207 (Part No.S-32207)

Driveworks Tapered Roller Bearing, S-32207

from

$20.99
Driveworks Tapered Roller Bearing, S-32207.
See More

Top-Quality Differential Oil for 2004 Subaru Legacies

Choose a high-quality OEM or aftermarket Differential Oil for Subaru Legacies and enjoy top-notch performance from $15.99.

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.
See More

Valvoline – Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976 (Part No.904976)

Valvoline Extended Protection Full Synthetic Automatic Transmission Fluid ATF 1 QT, 904976

from

$15.99
Modern transmissions are better than ever, with more gears to help improve fuel efficiency and acceleration. Greater performance calls for greater protection. Valvoline Extended Protection Full Synthetic ATF features our exclusive Dual Defense Additive Technology for two layers of protection against metal-on-metal contact and thermal breakdown, all while minimizing wear on clutch components. In fact, Valvoline Extended Protection Full Synthetic ATF is 45% stronger against breakdown compared to major brand DEX/MERC oxidative PDSC performance. Proven to maximize transmission life, our patented formula keeps your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand.
See More

Our Top Pick for a 2004 Subaru Legacy Differential Bearing

Invest in a durable Differential Bearing for your 2004 Subaru, knowing you’re getting trusted brands and expert craftsmanship.

National – National Multi-Purpose Bearing, 30208 (Part No.30208)

National Multi-Purpose Bearing, 30208

from

$33.99
Manufactured with premium materials, National taper bearing assemblies are designed and engineered to meet OE specifications.
See More

Differential Seals for 2004 Subaru Legacies

Make a smart move for your 2004 Subaru Legacy with products all priced from $14.99 to $15.99.

National – National Axle Differential Seal, 711090 (Part No.711090)

National Axle Differential Seal, 711090

from

$15.99
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.
See More

National – National Axle Differential Seal, 711091 (Part No.711091)

National Axle Differential Seal, 711091

from

$14.99
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.
See More

FAQs for 2004 Subaru Legacy Differentials

What are the best-selling Differentials for 2004 Subaru Legacies?

Out of 9 Differentials that fit 2004 Subaru Legacies, the following parts are the top sellers:

What’s the price range for 2004 Subaru Legacy Differentials?

The prices of Differentials for the 2004 Subaru Legacy range from $14.99 up to $53.99 for the most premium parts.

What is the average price of a Differential for a 2004 Subaru Legacy?

The average price for Differentials for the 2004 Subaru Legacy is $29.77. 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 Subaru Legacy model years?

Yes, we carry Differentials for 28 model years of Subaru Legacies between 1990 and 2019. The following model years are the most popular for Differential purchases: 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Differentials for my 2004 Subaru Legacy?

The cheapest 2004 Subaru Legacy Differentials we carry are:

Does Advance Auto Parts sell Differentials for any other 2004 Subaru models?

Yes. We stock Differentials for 3 other popular 2004 Subaru models. Some of the most popular are 2004 Outback Differentials, 2004 Impreza Differentials, 2004 Forester Differentials, and 2004 Baja Differentials.

What types of Differentials do you sell for my 2004 Subaru Legacy?

As of 8/2/26, these are some of the most in-demand types of Differentials for a 2004 Subaru Legacy:

Can I get help with 2004 Subaru Legacy Differential orders?

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

What is your return policy for Subaru Legacy Differentials?

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