SKU: B1022
GSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500
GSC Power-Division Viton valve stem seals provide precise oil metering for Subaru EJ20 and EJ25 engines found in Impreza WRX STI Forester XT and Legacy models from 1993 to 2021. This set of 500 seals prevents oil consumption and blow-by during high-revving performance driving. Built with advanced materials they maintain seal integrity under extreme engine temperatures and pressures.
Key Features
- Viton Construction: Handles temperatures to 450°F with resistance to oils fuels and additives for extended engine life
- 6mm Stem Fit: Direct replacement for OEM seals in all EJ series heads ensuring zero leaks
- 500 Piece Set: Supplies enough seals for 10 full engine sets perfect for shops or race teams
- Low Friction Profile: Reduces guide wear and supports smoother valve operation at high RPM
- Precision Molded: Tight tolerances match factory specs for drop-in installation and consistent performance
Product Notes
- Lubricate seals with assembly oil prior to install for optimal seating
- Inspect valve guides for wear before replacement to maximize seal life
- Store in cool dry place to preserve material properties
Installation Notes
- Professional installation recommended.
- Use dedicated valve seal installer tool to press seals evenly without twisting
- Compatible with stock OEM and aftermarket valve guides
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-2001 | Subaru | Impreza | Base/RS/Outback/OBX/L |
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2021 | Subaru | WRX | STI |
| 2004-2009 | Subaru | Forester | XT |
| 2005-2009 | Subaru | Legacy | GT |
| 2008-2014 | Subaru | Impreza | WRX |
| 2015-2021 | Subaru | WRX | STI |
Why Choose GSC Power-Division?
- Proven in NHRA drag racing and rallycross applications
- USA-made with aerospace-grade quality control
- Dyno-tested for real-world power gains and reliability
Frequently Asked Questions
-
Q: Which Subaru EJ engines use these 6mm seals?
A: Fits all EJ20 SOHC/DOHC and EJ25 NA/turbo variants with 6mm stems including common WRX STI Impreza Forester XT and Legacy GT heads -
Q: How does Viton compare to stock seals?
A: Viton offers 50% higher heat tolerance and better chemical resistance than OEM rubber preventing breakdown in tuned high-boost setups -
Q: What warranty covers these seals?
A: GSC provides a one-year limited warranty for manufacturing defects when installed by certified technicians
Shipping & Handling
- Method: Standard Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure poly bag in sturdy box
- Weight: 1.1 lbs
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