2004 Subaru Legacy Air Suspension and Kits

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Keep Your 2004 Subaru Legacy in Top Shape with Quality Air Suspension and Kits

Whether you’re repairing or upgrading your Air Suspension and Kit, 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 Suspension Strut Bumper and Bellows Kits, Suspension Self-Leveling Unit Fluids, and Lift and Lowering Kits. 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 Air Suspension and Kits from Trusted Brands

Looking for a reliable Air Suspension and Kit? We’ve got you covered with options from brands you know and trust like Valvoline. For example, Valvoline Air Suspension and Kits start at just $13.99 with an average 4.8 star rating. With over 488 reviews and a solid 4.0 star average, you can shop with confidence knowing other Subaru Legacy owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2004 Subaru Legacy Air Suspension and Kit at Advance Auto Parts is around $56.22, with a range that starts at $13.99 and goes up to $225.99. With 11 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Monroe Strut-Mate Front Rear Suspension Strut Bumper and Bellows Kit, 63632, Monroe Strut-Mate Suspension Strut Mount, 904934, and Whiteline Front Lower Inner Rear Bushings Offset Caster, KCA375 start at just $42.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Air Suspension and Kit, don’t forget to check out other key components like Coil and Leaf Springs and Shocks and Struts. 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 Air Suspension and Kits

Monroe – Monroe Strut-Mate Front Rear Suspension Strut Bumper and Bellows Kit, 63632 (Part No.63632)

Monroe Strut-Mate Front Rear Suspension Strut Bumper and Bellows Kit, 63632

from

$42.49
Designed to protect the strut, the Monroe Strut-Mate Boot Kit is the perfect replacement for a damaged jounce bumper or boot. Heavy-duty construction and unique design features make it the ideal choice for maximum rod protection and improved strut life.
See More

Whiteline – Whiteline Rear Differential Bushings – Mount in Cradle, KDT906 (Part No.KDT906)

Whiteline Rear Differential Bushings - Mount in Cradle, KDT906

from

$52.99
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

Whiteline – Whiteline Heavy Duty Rear Sway Bar Mount Kit, KBR21-20 (Part No.KBR21-20)

Whiteline Heavy Duty Rear Sway Bar Mount Kit, KBR21-20

from

$127.99
Whiteline heavy duty rear sway bar mounting saddle kits are designed to replace the original equipment mounts with a stronger more rigid forged alloy version. This Whiteline kit improves sway bar response and should be used for large diameter or adjustable sway bars especially when running the stiffer sway bar set tings as factory mounts will twist/ flex and potentially fail prematurely.
See More

Whiteline – Whiteline Sway Bar Bushing Kit, W0406-15 (Part No.W0406-15)

Whiteline Sway Bar Bushing Kit, W0406-15

from

$19.99
One of the most common suspension service items as they are easily inspected and simple to replace. Whiteline sway bar mounts utilise the latest technology synthetic elastomer combined with effective designs such as the internal bore knurling and grease retention lips for optimum lubrication and performance. Be sure to measure the sway bar diameter to ensure appropriate diameter mount bushing is selected.
See More

Whiteline – Whiteline Front Lower Inner Rear Bushings Offset Caster, KCA375 (Part No.KCA375)

Whiteline Front Lower Inner Rear Bushings Offset Caster, KCA375

from

$93.99
Whiteline caster kits are designed to improve cornering grip and vehicle straight line stability through increased static caster and dynamic negative camber gain. In addition, synthetic elastomer bushings provide improved steering feedback and braking performance.
See More

Whiteline – Whiteline Heavy Duty Rear Sway Bar Mount Kit, KBR21-27 (Part No.KBR21-27)

Whiteline Heavy Duty Rear Sway Bar Mount Kit, KBR21-27

from

$127.99
Whiteline heavy duty rear sway bar mounting saddle kits are designed to replace the original equipment mounts with a stronger more rigid forged alloy version. This Whiteline kit improves sway bar response and should be used for large diameter or adjustable sway bars especially when running the stiffer sway bar settings as factory mounts will twist/ flex and potentially fail prematurely.
See More

Whiteline – Whiteline Rear Differential Bushings – Outrigger, KDT905 (Part No.KDT905)

Whiteline Rear Differential Bushings - Outrigger, KDT905

from

$48.99
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

Whiteline – Whiteline Front Lower Inner Rear Bushings Offset Caster & Anti Lift, KCA319A (Part No.KCA319A)

Whiteline Front Lower Inner Rear Bushings Offset Caster & Anti Lift, KCA319A

from

$225.99
Whiteline Anti Lift Kits are primarily designed to improve traction and cornering grip under power. By increasing static caster and improving front end geometry the new alloy mounts coupled with low compliance synthetic elastomer bushings serve to dramatically sharpen initial turn-in response and reduce understeer.
See More

Valvoline – Valvoline ATF for Mercon«V Applications Conventional, 1 Quart, 822345 (Part No.822345)

Valvoline ATF for Mercon«V Applications Conventional, 1 Quart, 822345

from

$13.99
Valvoline ATF for MERCON V Applications is a high-quality transmission fluid meeting and exceeding the requirements of the Ford Mercon V specification which covers most Ford passenger cars and light-duty trucks (except those specifying MERCON SP, MERCON LV, MERCON ULV or Type F fluids), including Lincoln and Mercury, as well as most pre-2006 GM vehicles and many imports. Recommended for use in the following applications: MERCON V, MERCON, DEXRON-III, DEXRON-II, Caterpillar TO-2, Allison C-4. Other applications include Power steering fluid where a DEXRON or MERCON fluid is recommended. Suitable to use in Nissan Matic D, Matic J and Matic K. Volume: 1 quart.
See More

Valvoline – Valvoline Extended Protection Automatic Transmission Fluid 1 GA, 899177 (Part No.899177)

Valvoline Extended Protection Automatic Transmission Fluid 1 GA, 899177

from

$39.99
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
See More

Valvoline – Valvoline Extended Protection Automatic Transmission Fluid, 1 Quart, 899179 (Part No.899179)

Valvoline Extended Protection Automatic Transmission Fluid, 1 Quart, 899179

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 is suitable for use in 92% of vehicles in light duty automatic transmissions 2010 and newer. Keep your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand. Volume: 1 quart.
See More

Valvoline – Valvoline Import Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 QT, 904984 (Part No.904984)

Valvoline Import Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 QT, 904984

from

$14.99
Valvoline Import Multi-Vehicle ATF is the full-synthetic automatic transmission fluid that has been specially engineered to meet and exceed the requirements of most imports and domestics with automatic transmissions. Formulated with 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 specific frictional enhancements for smooth gear engagements. Valvoline Import Multi-Vehicle ATF is suitable for a broad range of automatic transmissions including most Toyota, Honda, Nissan, Hyundai, Kia, BMW, Volvo, VW and other import and domestic vehicles. It€™s specifically recommended for use in the following applications: BMW LT 71141 and ETL-7045E; Nissan/Infiniti Matic-D, Matic-K and Matic-J; Mitsubishi Diamond SP-II and SP-III; Subaru ATF-HP; Hyundai/Kia SP-II and SP-III; and Toyota/Lexus Type T. For the many shifts and miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
See More

Monroe – Monroe Strut-Mate Suspension Strut Mount, 904934 (Part No.904934)

Monroe Strut-Mate Suspension Strut Mount, 904934

from

$48.99
Every new strut deserves a Monroe Strut-Mate Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.
See More

Monroe – Monroe Strut-Mate Suspension Strut Mount, 907949 (Part No.907949)

Monroe Strut-Mate Suspension Strut Mount, 907949

from

$76.99
Every new strut deserves a Monroe Strut-Mate Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.
See More

Most Popular Suspension Strut Bumper and Bellows Kit for 2004 Subaru Legacies

Enhance your 2004 Subaru Legacy with this popular Suspension Strut Bumper and Bellows Kit we have in stock, for $42.49.

Monroe – Monroe Strut-Mate Front Rear Suspension Strut Bumper and Bellows Kit, 63632 (Part No.63632)

Monroe Strut-Mate Front Rear Suspension Strut Bumper and Bellows Kit, 63632

from

$42.49
Designed to protect the strut, the Monroe Strut-Mate Boot Kit is the perfect replacement for a damaged jounce bumper or boot. Heavy-duty construction and unique design features make it the ideal choice for maximum rod protection and improved strut life.
See More

Best-Selling 2004 Subaru Legacy Suspension Self-Leveling Unit Fluids

Upgrade your Legacy with one of our 4 best-selling Suspension Self-Leveling Unit Fluids, earning an average 5 stars rating across 120 reviews.

Valvoline – Valvoline ATF for Mercon«V Applications Conventional, 1 Quart, 822345 (Part No.822345)

Valvoline ATF for Mercon«V Applications Conventional, 1 Quart, 822345

from

$13.99
Valvoline ATF for MERCON V Applications is a high-quality transmission fluid meeting and exceeding the requirements of the Ford Mercon V specification which covers most Ford passenger cars and light-duty trucks (except those specifying MERCON SP, MERCON LV, MERCON ULV or Type F fluids), including Lincoln and Mercury, as well as most pre-2006 GM vehicles and many imports. Recommended for use in the following applications: MERCON V, MERCON, DEXRON-III, DEXRON-II, Caterpillar TO-2, Allison C-4. Other applications include Power steering fluid where a DEXRON or MERCON fluid is recommended. Suitable to use in Nissan Matic D, Matic J and Matic K. Volume: 1 quart.
See More

Valvoline – Valvoline Extended Protection Automatic Transmission Fluid 1 GA, 899177 (Part No.899177)

Valvoline Extended Protection Automatic Transmission Fluid 1 GA, 899177

from

$39.99
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
See More

Valvoline – Valvoline Extended Protection Automatic Transmission Fluid, 1 Quart, 899179 (Part No.899179)

Valvoline Extended Protection Automatic Transmission Fluid, 1 Quart, 899179

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 is suitable for use in 92% of vehicles in light duty automatic transmissions 2010 and newer. Keep your modern vehicle shifting smoothly, mile after mile, with the ultimate protection you can only expect from Valvoline, the #1 ATF brand. Volume: 1 quart.
See More

Valvoline – Valvoline Import Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 QT, 904984 (Part No.904984)

Valvoline Import Multi-Vehicle (ATF) Full Synthetic Automatic Transmission Fluid 1 QT, 904984

from

$14.99
Valvoline Import Multi-Vehicle ATF is the full-synthetic automatic transmission fluid that has been specially engineered to meet and exceed the requirements of most imports and domestics with automatic transmissions. Formulated with 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 specific frictional enhancements for smooth gear engagements. Valvoline Import Multi-Vehicle ATF is suitable for a broad range of automatic transmissions including most Toyota, Honda, Nissan, Hyundai, Kia, BMW, Volvo, VW and other import and domestic vehicles. It€™s specifically recommended for use in the following applications: BMW LT 71141 and ETL-7045E; Nissan/Infiniti Matic-D, Matic-K and Matic-J; Mitsubishi Diamond SP-II and SP-III; Subaru ATF-HP; Hyundai/Kia SP-II and SP-III; and Toyota/Lexus Type T. For the many shifts and miles ahead, trust your transmission with Valvoline, the #1 automatic transmission fluid brand.
See More

Top-Quality Lift and Lowering Kits for 2004 Subaru Legacies

Choose a high-quality OEM or aftermarket Lift and Lowering Kit for Subaru Legacies and enjoy top-notch performance from $19.99.

Whiteline – Whiteline Front Lower Inner Rear Bushings Offset Caster & Anti Lift, KCA319A (Part No.KCA319A)

Whiteline Front Lower Inner Rear Bushings Offset Caster & Anti Lift, KCA319A

from

$225.99
Whiteline Anti Lift Kits are primarily designed to improve traction and cornering grip under power. By increasing static caster and improving front end geometry the new alloy mounts coupled with low compliance synthetic elastomer bushings serve to dramatically sharpen initial turn-in response and reduce understeer.
See More

Whiteline – Whiteline Front Lower Inner Rear Bushings Offset Caster, KCA375 (Part No.KCA375)

Whiteline Front Lower Inner Rear Bushings Offset Caster, KCA375

from

$93.99
Whiteline caster kits are designed to improve cornering grip and vehicle straight line stability through increased static caster and dynamic negative camber gain. In addition, synthetic elastomer bushings provide improved steering feedback and braking performance.
See More

Whiteline – Whiteline Rear Differential Bushings – Mount in Cradle, KDT906 (Part No.KDT906)

Whiteline Rear Differential Bushings - Mount in Cradle, KDT906

from

$52.99
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

Whiteline – Whiteline Rear Differential Bushings – Outrigger, KDT905 (Part No.KDT905)

Whiteline Rear Differential Bushings - Outrigger, KDT905

from

$48.99
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

Whiteline – Whiteline Sway Bar Bushing Kit, W0406-15 (Part No.W0406-15)

Whiteline Sway Bar Bushing Kit, W0406-15

from

$19.99
One of the most common suspension service items as they are easily inspected and simple to replace. Whiteline sway bar mounts utilise the latest technology synthetic elastomer combined with effective designs such as the internal bore knurling and grease retention lips for optimum lubrication and performance. Be sure to measure the sway bar diameter to ensure appropriate diameter mount bushing is selected.
See More

Our Top Pick for a 2004 Subaru Legacy Suspension Strut Mounting Kit

Invest in a durable Suspension Strut Mounting Kit for your 2004 Subaru, knowing you’re getting trusted brands and expert craftsmanship.

Monroe – Monroe Strut-Mate Suspension Strut Mount, 904934 (Part No.904934)

Monroe Strut-Mate Suspension Strut Mount, 904934

from

$48.99
Every new strut deserves a Monroe Strut-Mate Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.
See More

Top-Rated Air Suspension and Kit Brands For Your 2004 Subaru Legacy

When it comes to finding the perfect Air Suspension and Kit for your 2004 Subaru Legacy, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Air Suspension and Kit brands including Valvoline, and more, all known for their exceptional customer ratings (average brand rating of 4.8 stars) and competitive prices, as low as $13.99. Purchasing a Air Suspension and Kit from us here at Advance Auto Parts is a smart move for both you and your 2004 Subaru Legacy, providing peace of mind with parts that meet or exceed OEM standards.

Popular Valvoline 2004 Subaru Legacy Air Suspension and Kits

If you’re looking for a top-quality Air Suspension and Kit for your 2004 Subaru Legacy, Advance Auto Parts has exactly what you need with our selection of Valvoline Air Suspension and Kits. We have 1 Valvoline Air Suspension and Kits in stock for this fitment, all known for their durability and precision fit. With prices starting at just $13.99, you’ll find the perfect Air Suspension and Kit for your needs and budget. Valvoline Air Suspension and Kits for the 2004 Subaru Legacy come highly rated, with over 120 customer reviews and an impressive average rating of 4.8 stars. Choosing a Valvoline Air Suspension and Kit from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

FAQs for 2004 Subaru Legacy Air Suspension and Kits

What are the best-selling Air Suspension and Kits for 2004 Subaru Legacies?

Out of 11 Air Suspension and Kits that fit 2004 Subaru Legacies, the following parts are the top sellers:

What’s the price range for 2004 Subaru Legacy Air Suspension and Kits?

The prices of Air Suspension and Kits for the 2004 Subaru Legacy range from $13.99 up to $225.99 for the most premium parts.

What is the average price of an Air Suspension and Kit for a 2004 Subaru Legacy?

The average price for Air Suspension and Kits for the 2004 Subaru Legacy is $56.22. Keep in mind the variety of part types within our Air Suspension and Kit category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Air Suspension and Kits for other Subaru Legacy model years?

Yes, we carry Air Suspension and Kits for 29 model years of Subaru Legacies between 1990 and 2020. The following model years are the most popular for Air Suspension and Kit purchases: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2012.

What are the cheapest Air Suspension and Kits for my 2004 Subaru Legacy?

Does Advance Auto Parts sell Air Suspension and Kits for any other 2004 Subaru models?

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

What are the top-rated Air Suspension and Kits that fit the 2004 Subaru Legacy?

Based on 488 reviews by customers, our 2004 Subaru Legacy Air Suspension and Kits have an average customer rating of 4.0 stars. These are the highest-rated categories of Air Suspension and Kits for the 2004 Subaru Legacy and their top-rated products:

What types of Air Suspension and Kits do you sell for my 2004 Subaru Legacy?

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

Can I get help with 2004 Subaru Legacy Air Suspension and Kit orders?

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

What is your return policy for Subaru Legacy Air Suspension and Kits?

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