
Subaru 45137FE002 Radiator Cap
OEM Part Numbers
• 45137FE002
Vehicle Fitment Table (OEM Compatibility)
| Brand | Model | Years | Notes |
|---|---|---|---|
| Subaru | WRX | 2002–2014 | All trims |
| Subaru | STI | 2002–2014 | All trims |
| Subaru | Forester XT | 2004–2012 | All trims |
| Subaru | Outback XT | 2004–2009 | All trims |
| Subaru | Legacy GT | 2004–2009 | All trims |
Important Fitment Notes:
• Always verify by VIN – Fitment is determined by the specific cooling system and pressure rating. Confirm your application before ordering.
• Turbocharged engines only – This cap is designed specifically for turbocharged engines. It is not compatible with naturally aspirated models.
• Complete assembly – This listing includes the radiator cap assembly. No additional parts are needed for installation.
• Genuine Subaru quality – This is an OEM part, not an aftermarket or Chinese replica.
• Double-check your original part – Before ordering, confirm the part number printed on your old cap or run your VIN through a Subaru OEM parts catalog for absolute certainty.
Condition
New (100% genuine Subaru packaging)
Product Type
Radiator Cap (pressure cap with integrated relief valve and gasket)
Function
Maintains the correct pressure in the engine cooling system, raising the boiling point of the coolant and preventing cavitation. The pressure relief valve releases excess pressure to protect hoses and the radiator, while the vacuum valve allows coolant to return from the overflow tank as the engine cools.
Applications
This radiator cap fits Subaru WRX, STI, Forester XT, Outback XT, and Legacy GT from approximately 2002 through 2014 with turbocharged engines.
Important: This cap is designed for turbocharged Subaru engines only. It is not compatible with naturally aspirated models. If in doubt, send us your VIN before ordering.
Technical Specifications
| Brand | Subaru (Genuine OEM) |
|---|---|
| Part Number | 45137FE002 |
| Seller SKU | SUBARU_45137FE002 |
| Type | Radiator cap |
| Pressure Rating | Factory Subaru spec |
| Valve Type | Pressure relief |
| Gasket Material | High-temperature rubber |
| Compatibility | WRX / STI / Forester XT / Outback XT / Legacy GT |
| Condition | New (factory original) |
Warranty
Subaru's original manufacturer warranty applies. For claims, please contact your nearest Subaru authorized dealer with your proof of purchase. Warranty terms may vary by region — contact us before purchase if you need a warranty confirmation.