Hose - Subaru (21204AA850)

We offer only Original Subaru Parts

Genuine Subaru Parts
Subaru Parts
  • Subaru
  • 21204AA850

Details

  • Brand:

     Parts

  • SKU:

    21204AA850

  • Other Names:

    Engine Coolant Hose, Heater Hose, Hose Ay Pre Heater

  • Description:

    Throttle Body to Pipe. Without turbo. Throttle Body to Outlet. With turbo, with sti. 2.5L, 2003-05.


    Hose - Subaru (21204AA850) is a Genuine OEM engine cooling component designed to deliver reliable coolant flow between key parts of your Subaru’s engine system. Precision-engineered for optimal fit and durability, this hose plays a vital role in maintaining proper engine temperature and preventing overheating during operation.

    Constructed from reinforced, heat-resistant rubber, this coolant hose is built to withstand high engine temperatures and pressure fluctuations without cracking or collapsing. Its durable material composition ensures long-term performance, even in demanding driving environments. Subaru’s OEM standards guarantee that this hose meets exact specifications for size, shape, and compatibility.

    Part number 21204AA850 is designed for select Subaru engines and integrates seamlessly with the vehicle’s cooling system. The molded shape matches factory routing, which prevents interference with other components and allows for straightforward installation with no trimming or adjustments needed.

    Replacing worn or leaking coolant hoses is critical to engine health, and using OEM parts like this ensures the system remains properly sealed and pressurized. Ideal for both professional mechanics and capable DIYers, this part offers peace of mind through consistent, leak-free performance.

    ✔ Genuine Subaru OEM part ensures precise fit and compatibility

     ✔ Reinforced rubber construction resists heat and pressure

     ✔ Molded to match original factory routing

     ✔ Helps maintain proper coolant flow and engine temperature

     ✔ Easy to install with basic tools and standard clamps

    Hose - Subaru (21204AA850) is the dependable solution for restoring your Subaru’s cooling system to peak condition, helping you avoid overheating issues and protect your engine for the long haul.


  • Condition: New
  • MSRP: $14.18
  • Discount: $4.31 (30.4% off)
  • Sale Price: $9.87
Ships To
Sold In Individual Units
Manufacturer Warranty Minimum of 12 Months
Guaranteed Fitment Requires VIN entry at checkout
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In-House Experts 100 years of combined experience

Hose - Subaru (21204AA850)

We offer only Original Subaru Parts

Genuine Subaru Parts
Subaru Parts
  • Subaru
  • 21204AA850

Details

  • Brand:

     Parts

  • SKU:

    21204AA850

  • Other Names:

    Engine Coolant Hose, Heater Hose, Hose Ay Pre Heater

  • Description:

    Throttle Body to Pipe. Without turbo. Throttle Body to Outlet. With turbo, with sti. 2.5L, 2003-05.


    Hose - Subaru (21204AA850) is a Genuine OEM engine cooling component designed to deliver reliable coolant flow between key parts of your Subaru’s engine system. Precision-engineered for optimal fit and durability, this hose plays a vital role in maintaining proper engine temperature and preventing overheating during operation.

    Constructed from reinforced, heat-resistant rubber, this coolant hose is built to withstand high engine temperatures and pressure fluctuations without cracking or collapsing. Its durable material composition ensures long-term performance, even in demanding driving environments. Subaru’s OEM standards guarantee that this hose meets exact specifications for size, shape, and compatibility.

    Part number 21204AA850 is designed for select Subaru engines and integrates seamlessly with the vehicle’s cooling system. The molded shape matches factory routing, which prevents interference with other components and allows for straightforward installation with no trimming or adjustments needed.

    Replacing worn or leaking coolant hoses is critical to engine health, and using OEM parts like this ensures the system remains properly sealed and pressurized. Ideal for both professional mechanics and capable DIYers, this part offers peace of mind through consistent, leak-free performance.

    ✔ Genuine Subaru OEM part ensures precise fit and compatibility

     ✔ Reinforced rubber construction resists heat and pressure

     ✔ Molded to match original factory routing

     ✔ Helps maintain proper coolant flow and engine temperature

     ✔ Easy to install with basic tools and standard clamps

    Hose - Subaru (21204AA850) is the dependable solution for restoring your Subaru’s cooling system to peak condition, helping you avoid overheating issues and protect your engine for the long haul.


  • Condition: New

Vehicle Fitment

No application/vehicle fitment information available for this product
Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

Product Reviews

Subaru Parts Pros - South Shore Subaru

SubaruPartsPros.com proudly operates as part of South Shore Subaru located in NY. As a Genuine S.O.A Parts dealership we have the ability to obtain any and all Subaru parts needed to fix and maintain your vehicle. We understand shopping for parts online can be confusing and stressful at times because the last thing you want is the wrong part. Rest assured though as when you shop our online store and provide your vehicle identification number (VIN) at checkout it is our duty to make sure each and every part ordered fits your vehicle. In cases where we find a mis-match we will contact you immediately and make the proper correction to your order. Please feel free to drop us a line by using the contact us page or chat live with one of our agents.