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GSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500 - Black Ops Auto Works
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GSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500

GSCB1022
GSCB1022
Valve Seals
4 Units In Stock - Ships Next Business Day
$ 358.63 $ 304.84
$ 304.84

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

Request For Information

Have questions about GSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500? Fill out the form below and we'll get back to you by the next business day.
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