2004 Subaru Legacy Engine Cooling Parts

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Keep Your 2004 Subaru Legacy in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, 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 Thermostats, Thermostat and Water Outlet Gaskets, and Water Pumps. 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 Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium, Felpro, and Imperial. For example, Carquest Premium Engine Cooling Parts start at just $14.99 with an average 4.5 star rating. Felpro and Imperial offer similar pricing and quality, backed by strong customer feedback. With over 1,736 reviews and a solid 3.9 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 Engine Cooling Part at Advance Auto Parts is around $47.88, with a range that starts at $3.99 and goes up to $217.99. With 39 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Imperial Adjustable Thermostatic Fan Control, 226203, Motorad UltraStats UltraStat Thermostat: 170 Degrees, 5294-170, and "Imperial Electric Fan, 12"" Diameter, 226112" start at just $20.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 2004 Subaru Legacy in peak condition, inside and out.

Looking for the perfect Engine Cooling Part for your 2004 Subaru Legacy? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Subaru Legacy. Whether you’re driving a 2004 model or another popular model year like 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, and 2022, we’ve got you covered. Purchasing Engine Cooling Parts 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 Engine Cooling Parts that fit your vehicle.

Essential 2004 Subaru Legacy Engine Cooling Parts

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$725.99

This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Dorman Engine Coolant Thermostat Housing, 902-5856

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$42.49

This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Dorman Non-Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement, 603-769

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$76.99

This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of under hood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

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$16.99

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

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$10.99

Motorad Engine Coolant Thermostat Housing Kit: Includes Gasket/Seal, 192 Degrees, 6131KT

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$87.99

Kit includes thermostat, housing, and all necessary seals/gaskets to do the complete job. These individual parts are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat and housing will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

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$20.99

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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$72.99

This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.

Dorman Coolant Housing/Water Outlet: with Housing, 70 Degree Neck Angle, 902-5858

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$23.79

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$5.49

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.

Victor Reinz Engine Coolant Thermostat Housing Gasket, 41-73300-00

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$6.19

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Dorman - Help Radiator Drain Cocks, 61123

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$8.99

This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.

Imperial Adjustable Thermostatic Fan Control, 226203

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$24.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Imperial Adjustable Thermostatic Fan Control, 226204

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$70.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Carquest Radiator Cap Tester Adapter, 12024

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$17.99

Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Carquest Radiator Cap Tester Adapter, 12021

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$18.99

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$8.99

NTK Engine Coolant Temperature Sensor, EF0089

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$54.99

The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to ensure proper air/fuel ratio along with proper operation of the cooling fans and temperature gauge. The Engine Coolant Temperature Sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold. Reasons for replacement include, check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.

NTK Engine Coolant Temperature Sensor, EF0153

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$33.99

"Imperial Electric Fan, 10"" Diameter, 226110"

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$81.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

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$75.99

New Platinum Pro Radiator Cooling Fan Assembly, Driver Side

Motorad Standard Thermostat: With Thermostat Insert, With Seal, 203 Degrees, 707-203

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$85.99

Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable

Carquest Standard Thermostat: 140 Degrees, 294-140

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$25.99

Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Carquest Radiator: With Transmission Oil Cooler, 431490

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$217.99

Reach Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Reach Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

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$187.99

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$39.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Carquest Cooling System Tester Adapter, 12027

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$31.99

Carquest Fuel Cap Tester Adapter:, 12427

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Popular 2004 Subaru Legacy Engine Cooling Parts Categories

Radiators

Water Pumps

Engine Cooling Fan Controllers

Engine Coolant Thermostat Housing Caps

Thermostats

Engine Cooling Fans

Radiator Fan Motors

Thermostat and Water Outlet Assemblies

Coolant Reservoirs

Coolant Temperature Sensors

Coolant Reservoir Caps

Water Outlets

Engine Coolant Pipe O-Rings

Thermostat Housing Gaskets

Thermostat Housings

Thermostat and Water Outlet Gaskets

Water Pump Gaskets

Radiator Drain Plugs

Radiator Cap Adapters

Cooling System Tester Adapters

Most Popular Thermostats for 2004 Subaru Legacies

Enhance your 2004 Subaru Legacy with one of the 3 Thermostats we have in stock, starting at just $13.99.

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Carquest Standard Thermostat: 170 Degrees, 14147

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$13.99

Motorad UltraStats UltraStat Thermostat: 170 Degrees, 5294-170

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$20.99

This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

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$25.99

Best-Selling 2004 Subaru Legacy Thermostat and Water Outlet Gasket

Upgrade your Legacy with our best-selling Thermostat and Water Outlet Gasket with a 4.5 Starts rating across 7 reviews.

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$8.99

Top-Quality Water Pumps for 2004 Subaru Legacies

Choose a high-quality OEM or aftermarket Water Pump for Subaru Legacies and enjoy top-notch performance from $72.99.

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$72.99

AISIN Drive Motor Inverter Cooler Water Pump Assembly, WPF-002

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$99.99

OE Engineered and Manufactured Water Pumps; From the Largest OE Water Pump Manufacturer in the World

Top Picks for 2004 Subaru Legacy Water Pump Gaskets

Invest in one of our 2 durable Water Pump Gaskets for your 2004 Subaru, knowing you’re getting trusted brands and expert craftsmanship.

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$7.99

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Victor Reinz Engine Water Pump Gasket, 71-11102-00

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$9.49

Top-Rated Radiators for 2004 Subaru Legacies

Make a smart move for your 2004 Subaru Legacy with products all priced from $131.99 to $217.99.

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$217.99

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$131.99

New Platinum Pro Radiator, 2.5 Liter Engine

Top-Rated Engine Cooling Part Brands For Your 2004 Subaru Legacy

When it comes to finding the perfect Engine Cooling Part for your 2004 Subaru Legacy, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Engine Cooling Part brands including Felpro, Carquest Premium, and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $7.99. Purchasing a Engine Cooling Part 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 Felpro 2004 Subaru Legacy Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2004 Subaru Legacy, Advance Auto Parts has exactly what you need with our selection of Felpro Engine Cooling Parts. We have 2 Felpro Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.99 and an average cost of $8.49, you’ll find the perfect Engine Cooling Part for your needs and budget. Felpro Engine Cooling Parts for the 2004 Subaru Legacy come highly rated, with over 9 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $8.99

(7)

Felpro Multi-Purpose O-Ring, 35524

“Used with new thermostat 1999 Subaru”

from $7.99

(2)

Felpro Engine Water Pump Gasket, 35747

“Works fine from what I can tell 1000 miles later”

Top-Quality Carquest Premium 2004 Subaru Legacy Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2004 Subaru Legacy, Advance Auto Parts offers a great selection of Carquest Premium Engine Cooling Parts. With 3 Carquest Premium Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $14.99, with an average price of $101.99, giving you a range of options to suit your budget. Backed by over 224 customer ratings and an average rating of 4.5 stars, Carquest Premium Engine Cooling Parts provide both reliability and excellent performance. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $72.99

(16)

Carquest Engine Water Pump_New, T2254

“Worked out great exact replacement.”

from $14.99

(193)

Carquest Radiator Cap: 16 PSI, 10233

“works as it should”

from $217.99

(15)

Carquest Radiator: With Transmission Oil Cooler, 431490

“Perfect fit no problems at all.”

FAQs for 2004 Subaru Legacy Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2004 Subaru Legacies?

Out of 39 Engine Cooling Parts that fit 2004 Subaru Legacies, the following parts are the top sellers:

Imperial Adjustable Thermostatic Fan Control, 226203 (6016936) – $24.99
Motorad UltraStats UltraStat Thermostat: 170 Degrees, 5294-170 (11920548) – $20.99
"Imperial Electric Fan, 12"" Diameter, 226112" (6016901) – $116.99

What’s the price range for 2004 Subaru Legacy Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2004 Subaru Legacy range from $3.99 up to $217.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2004 Subaru Legacy?

The average price for Engine Cooling Parts for the 2004 Subaru Legacy is $47.88. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Subaru Legacy model years?

Yes, we carry Engine Cooling Parts for 34 model years of Subaru Legacies between 1990 and 2025. The following model years are the most popular for Engine Cooling Part purchases: 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, and 2014.

What are the cheapest Engine Cooling Parts for my 2004 Subaru Legacy?

The cheapest 2004 Subaru Legacy Engine Cooling Parts we carry are:

MAHLE Original Engine Coolant Outlet Gasket, C32100 (10307454) – $3.99
Felpro Multi-Purpose O-Ring, 36024 (11138892) – $5.49
Victor Reinz Engine Coolant Thermostat Housing Gasket, 41-73300-00 (12548057) – $6.19
Felpro Engine Water Pump Gasket, 35747 (20688642) – $7.99
Felpro Multi-Purpose O-Ring, 35524 (3505103) – $8.99

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

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

What are the top-rated Engine Cooling Parts that fit the 2004 Subaru Legacy?

The one 2004 Subaru Legacy Engine Cooling Part we have in stock is the MAHLE Original Engine Coolant Outlet Gasket, C32100. It costs $3.99.

What types of Engine Cooling Parts do you sell for my 2004 Subaru Legacy?

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

Can I get help with 2004 Subaru Legacy Engine Cooling Part orders?

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

What is your return policy for Subaru Legacy Engine Cooling Parts?

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

2004 Subaru Legacy Engine Cooling Parts

Dorman – Dorman Radiator Fan Assembly, 621-810 (Part No.621-810)

Dorman – Dorman Engine Coolant Thermostat Housing, 902-5856 (Part No.902-5856)

Dorman – Dorman Non-Pressurized Coolant Reservoir: Clear, Plastic, Original Equipment Replacement, 603-769 (Part No.603-769)

Carquest Premium – Carquest Radiator Cap: 16 PSI, 10242 (Part No.10242)

Carquest Premium – Carquest Radiator Cap, T110 (Part No.T110)

Motorad – Motorad Engine Coolant Thermostat Housing Kit: Includes Gasket/Seal, 192 Degrees, 6131KT (Part No.6131KT)

Felpro – Felpro Engine Water Pump Gasket, 36072 (Part No.36072)

Carquest Premium – Carquest Engine Water Pump_New, T2254 (Part No.T2254)

Dorman – Dorman Coolant Housing/Water Outlet: with Housing, 70 Degree Neck Angle, 902-5858 (Part No.902-5858)

Felpro – Felpro Multi-Purpose O-Ring, 36024 (Part No.36024)

Victor Reinz – Victor Reinz Engine Coolant Thermostat Housing Gasket, 41-73300-00 (Part No.41-73300-00)

Dorman – Help – Dorman – Help Radiator Drain Cocks, 61123 (Part No.61123)

Imperial – Imperial Adjustable Thermostatic Fan Control, 226203 (Part No.226203)

Imperial – Imperial Adjustable Thermostatic Fan Control, 226204 (Part No.226204)

Carquest Premium – Carquest Radiator Cap Tester Adapter, 12024 (Part No.12024)

Carquest Premium – Carquest Radiator Cap Tester Adapter, 12021 (Part No.12021)

Felpro – Felpro Multi-Purpose O-Ring, 35524 (Part No.35524)

NTK – NTK Engine Coolant Temperature Sensor, EF0089 (Part No.EF0089)

NTK – NTK Engine Coolant Temperature Sensor, EF0153 (Part No.EF0153)

Imperial – "Imperial Electric Fan, 10"" Diameter, 226110" (Part No.226110)

KAI – KAI Cooling Fan Assembly, SU3115115 (Part No.SU3115115)

Motorad – Motorad Standard Thermostat: With Thermostat Insert, With Seal, 203 Degrees, 707-203 (Part No.707-203)

Carquest Premium – Carquest Standard Thermostat: 140 Degrees, 294-140 (Part No.294-140)

Carquest Premium – Carquest Radiator: With Transmission Oil Cooler, 431490 (Part No.431490)

Carquest Premium – Carquest Radiator, 812779 (Part No.812779)

Carquest Premium – Carquest Fuel Cap Tester Adapter, 12422 (Part No.12422)

Carquest Premium – Carquest Cooling System Tester Adapter, 12027 (Part No.12027)

Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12427 (Part No.12427)

Carquest Premium – Carquest Standard Thermostat: 170 Degrees, 14147 (Part No.14147)

Motorad UltraStats – Motorad UltraStats UltraStat Thermostat: 170 Degrees, 5294-170 (Part No.5294-170)

Carquest Premium – Carquest Standard Thermostat: 140 Degrees, 294-140 (Part No.294-140)

Felpro – Felpro Multi-Purpose O-Ring, 35524 (Part No.35524)

Carquest Premium – Carquest Engine Water Pump_New, T2254 (Part No.T2254)

AISIN – AISIN Drive Motor Inverter Cooler Water Pump Assembly, WPF-002 (Part No.WPF-002)

Felpro – Felpro Engine Water Pump Gasket, 35747 (Part No.35747)

Victor Reinz – Victor Reinz Engine Water Pump Gasket, 71-11102-00 (Part No.71-11102-00)

Carquest Premium – Carquest Radiator: With Transmission Oil Cooler, 431490 (Part No.431490)

KAI – KAI Radiator, RAD2331 (Part No.RAD2331)