Weapon R Power Steering Reservoir Tank – front angled view
Close-up showing billet aluminum construction
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Weapon R 02-05 Subaru WRX Power Steering Reservoir Tank

Weapon R
WPN826-126-101
Coolant Reservoirs
2 Units In Stock - Ships Next Business Day
$ 150.00
$ 150.00

SKU: 826-126-101

Weapon R 02-05 Subaru WRX Power Steering Reservoir Tank

The Weapon R Power Steering Reservoir Tank for 2002-2005 Subaru WRX is built from high-quality billet 6061 aluminum and TIG welded for maximum strength and leak-free performance. Designed specifically for performance and racing applications, this premium tank replaces the factory overflow and adds durability while providing an upgrade in both functionality and engine bay aesthetics.

Key Features

  • Billet 6061 Aluminum Construction: Provides excellent strength and corrosion resistance.
  • TIG-Welded Seams & CNC Machined Fittings: Ensures a secure, precision fit-up and leak-free performance under pressure.
  • Engineered for Racing Applications: Enables reliable function during high-stress, high-RPM use.
  • Vehicle-Specific Fitment: Designed to match OEM mounting points for WRX models, allowing direct replacement with minimal modifications.
  • Enhanced Engine Bay Presentation: Adds a polished or high-finish appearance to the reservoir tank for show-quality under-hood looks (selected finishes). 

Product Notes

  • This tank is designed for performance use, road-use warranty and emissions legality may vary by region.
  • Requires removal of the factory reservoir and hose routing; confirm compatibility with your model year and setup.
  • Regular inspection of hose clamps and fittings is recommended after installing an aftermarket reservoir in high-stress or track environments.
  • Drain and remove the original power steering overflow tank following manufacturer instructions.
  • Install the Weapon R tank in place of the stock unit using supplied bracket and clamps (if included). Confirm the orientation and mounting respect factory geometry.
  • Connect the return hose as specified, check for leaks, and fill system with the recommended fluid. Bleed the system if necessary.
  • After installation, perform a test drive under varying load to ensure proper operation and no fluid loss.

This Part Fits

Year Make Model Notes
2002-2005 Subaru Impreza WRX / WRX 2.0L Turbo (US Spec) – direct fit
2006-2007 Subaru Impreza WRX / WRX Limited / WRX TR 2.5L Turbo (US Spec) – compatible fitment listed by some retailers

Why Choose Weapon R?

  • Established performance brand specializing in aftermarket aluminum reservoirs, intakes, and engine-bay components.
  • Quality-driven manufacturing with motorsport-grade materials and attention to detail.
  • Designed for both aesthetic appeal and track-capable reliability combining form and function in one upgrade.

Frequently Asked Questions

  • Q: Will this unit fit my 2004 WRX STI?
    A: This specific part (826-126-101 / WPN826-126-101) is listed primarily for the 2002-2005 WRX, fitment for STI models or 2006-07 variants may require verification.
  • Q: Is additional cooling required when using this tank?
    A: The tank itself is a replacement reservoir, not a cooler, if you’re running extreme conditions or track use you may still consider a power steering cooler or upgraded hoses.
  • Q: What fluid should I use after installation?
    A: Use the manufacturer-specified power steering fluid for your vehicle, and properly bleed the system to avoid air pockets.

Shipping & Handling

  • Method: Ships via ground parcel carriers (UPS, FedEx) unless otherwise noted.
  • Availability: Typically ships same or next-business day when in stock, backorders may apply for special finishes.
  • Packaging: Securely boxed with protective foam and welded-bracket bag included.

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