GSC Valve Keeper Set – OEM Replacement for Mitsubishi 4G63T – GSC1003
The GSC1003 valve keeper (lock) set is designed for Mitsubishi 4G63T engines and includes 32 pieces (16 locks). Compatible with all GSC valve spring and retainer kits, these keepers also serve as a direct-fit alternative to OEM components—ideal for avoiding dealership markups.
Recommended anytime valves are replaced, these keepers ensure proper groove engagement for reliable valve rotation and valvetrain stability.
Crafted from premium-grade steel with tighter tolerances than factory parts, GSC keepers help maintain consistent valve spring install heights. A black oxide finish adds rust resistance and reduces sticking during assembly.
Fitment:
- 1989 Mitsubishi Galant VR-4 2.0L Turbo 4G63T
- 1990 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1991 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1992 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1993 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1990 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1991 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1992 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1993 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1995 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1996 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1997 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1998 Mitsubishi Eclipse GSX 2.0L Turbo 4G63T
- 1995 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1996 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1997 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1998 Mitsubishi Eclipse GST 2.0L Turbo 4G63T
- 1990 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1991 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1992 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1993 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1995 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1996 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1997 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1998 Eagle Talon TSi AWD 2.0L Turbo 4G63T
- 1991 Plymouth Laser RS Turbo 2.0L 4G63T
- 1992 Plymouth Laser RS Turbo 2.0L 4G63T
- 1993 Plymouth Laser RS Turbo 2.0L 4G63T
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
