Gates 02-07 Subaru WRX/STI Upper Radiator Hose - 22886

The Gates Upper Radiator Hose (Part #22886) is a direct-fit OEM-quality coolant hose engineered specifically for 2002–2007 Subaru WRX and STI models. If your GD-chassis Impreza is showing signs of a weeping, cracked, or softened upper radiator hose, this is the correct replacement part — precision-molded to drop into the factory location without modification. At $33.86, it's an affordable piece of preventative cooling system maintenance that can save you from a far more costly overheat.

Key Features & Benefits

• Molded to OEM Specifications: Gates manufactures this hose to match the original factory routing and connection points exactly, saving installation time and eliminating the guesswork of cutting a straight hose to length.
• OEM-Quality Construction: Designed to meet original equipment specifications, so you're restoring your cooling system to factory performance standards — not compromising it.
• Engineered to Resist Electrochemical Degradation: Gates' curved hose line is specifically engineered to resist electrochemical degradation (ECD), a common cause of hose failure where coolant chemistry slowly attacks the hose from the inside out. This is especially relevant on aging WRX and STI platforms where original hoses are now 18–23 years old.
• Comprehensive Replacement Market Coverage: Gates' curved/molded hose line is noted as one of the most comprehensive on the replacement market, meaning fitment confidence across the wide range of GD Impreza submodels listed below.
• Approved for Marine Applications: Gates certifies this hose line for marine use — a testament to its resistance to heat, pressure, and harsh operating environments that also apply to a boosted Subaru boxer engine.
• Regularly Stocked: Unlike special-order or hard-to-find cooling components, this part is regularly stocked and ships quickly, so your car isn't sitting on jackstands waiting weeks for a hose.

Specifications

• Brand: Gates
• Part Number / MPN: 22886
• SKU: GAT22886
• UPC: 00072053940169
• Hose Type: Upper Radiator / Coolant Hose (molded/curved)
• Application: 2002–2007 Subaru WRX / 2004–2007 Subaru WRX STI (see full fitment list below)

Fitment

This Gates upper radiator hose fits the following vehicles:

• 2005 Saab 9-2X — Aero
• 2006–2007 Subaru Impreza — 2.5i
• 2003–2004 Subaru Impreza — Outback
• 2005–2007 Subaru Impreza — Outback Sport
• 2003–2005 Subaru Impreza — RS
• 2003–2004 Subaru Impreza — TS
• 2002–2007 Subaru Impreza — WRX
• 2006–2007 Subaru Impreza — WRX Limited
• 2004–2007 Subaru Impreza — WRX STI
• 2007 Subaru Impreza — WRX STI Limited
• 2006–2007 Subaru Impreza — WRX TR
• 2003–2004 Subaru Outback — Base
• 2003–2004 Subaru Outback — Limited

Note: This hose covers a broad range of GD-generation Impreza and Outback variants, including naturally aspirated and turbocharged models. If you are unsure whether this part fits your specific build — particularly if you have a swapped engine or aftermarket cooling setup — reach out to the ThreePiece.us fitment team before ordering.

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum, no exceptions.
• Affirm Financing: Pay over time with Affirm financing, available at checkout. Spread the cost of your cooling system refresh across manageable installments.
• Expert Fitment Support: Not sure this is the right hose for your specific Subaru? ThreePiece.us has served 10,000+ customers and has a real team available to verify fitment. Call 813-535-5801 or email sales@threepiece.us before you order.
• Regularly Stocked: This part is a regularly stocked product, not a special order — so lead times are short and you can get your car back on the road quickly.

Frequently Asked Questions

Does this hose fit the 2004 WRX STI?

Yes. The Gates 22886 upper radiator hose is confirmed to fit the 2004–2007 Subaru Impreza WRX STI. It also covers the 2002–2007 WRX and several naturally aspirated Impreza trims. See the full fitment table above for your specific submodel.

Does it also fit the Saab 9-2X?

Yes — the 2005 Saab 9-2X Aero (which shares its platform with the GD Subaru Impreza) is listed as a confirmed fitment application for this hose.

Is this a molded hose or a universal cut-to-fit hose?

This is a molded (pre-curved) hose, manufactured to match the factory upper radiator hose routing on GD-chassis Impreza models. That means it installs directly in place of the original hose without any cutting or reshaping — saving time and ensuring proper fitment at both connection points.

How long will shipping take?

This part is listed as a regularly stocked product at ThreePiece.us, meaning it is available for prompt shipment — not a special order with extended lead times. All orders ship free. For a precise ETA, contact the team at 813-535-5801.