SKU: B800630 | UPC: 700424674336
Cobb 04-07 Subaru WRX / STI Coolant Overflow Tank w/ Washer Fluid Relocation Kit
The Cobb Coolant Overflow Tank kit replaces the factory reservoir on 2004-2007 Subaru Impreza WRX and STI models, adding coolant capacity for sustained engine temperatures during spirited driving. It relocates the washer fluid tank to the OEM battery tray position, freeing space and improving engine bay airflow. MPN 800630 delivers direct-fit performance for track days or daily use.
Key Features
- Increased Coolant Capacity: Larger high-temperature nylon reservoir holds more fluid than stock for reliable cooling under load.
- Washer Reservoir Relocation: Moves OEM washer tank behind battery tray with included brackets for a streamlined engine bay layout.
- Billet Aluminum Cap: Anodized cap with -10AN fitting enables quick filling, venting, and pressure management.
- Complete Hardware Kit: Supplies all hoses, fittings, clamps, and mounting hardware for seamless integration.
- Made in USA: Precision-crafted for durability and exact fit on GD-chassis Subarus.
Product Notes
- Direct replacement maintains stock appearance while enhancing function.
- Improves coolant level visibility through clear reservoir body.
Installation Notes
- Professional installation recommended.
- Bolt-on design uses basic hand tools 1-2 hours typical labor.
- Compatible with stock hood, intercooler, and battery tray no trimming required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza | WRX STI |
Why Choose Cobb?
- Proven Subaru specialist with decades of GD-chassis expertise.
- Engineered for real-world performance gains and reliability.
- U.S.-made components ensure consistent quality and fit.
Frequently Asked Questions
- Q: Does this kit fit 2004-2007 STI models?
A: Yes, confirmed direct fit for all 2004-2007 Impreza WRX STI variants, including 6-speed and 5-speed transmissions. - Q: What materials are used in construction?
A: High-temperature nylon tank for heat resistance, paired with anodized billet aluminum cap and stainless fittings. - Q: What warranty coverage applies?
A: Cobb provides a limited lifetime warranty against manufacturing defects when installed properly.
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure box, 10 x 10 x 6 inches
- Weight: 1.85 lbs
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