Looking for aftermarket parts to modify or upgrade your 1990 Mitsubishi Eclipse with valve springs, retainers? At Tunersports.com we carry a huge selection of the top name brand performance valve springs, retainer parts and accessories.

SHIPS FROM MANUFACTURER BC2100Brian Crower Mitsubishi 4G63 Eclipse/Evo Titanium Retainer - Set of 16 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $204.00 |

IN STOCK - LOW BC0100Brian Crower Mitsubishi 4G63 Eclipse/Evo Single Spring & Titanium Retainer Kit 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $300.00 |
SHIPS FROM MANUFACTURER BC0120Brian Crower Mitsubishi 4G63 Eclipse/Evo Dual Springs / Titanium Retainers / Seat / Valve Seal Kit 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $539.00 |

IN STOCK - LOW BC1100Brian Crower Mitsubishi 4G63 Eclipse/Evo/Dodge SRT-4 Single Valve Springs 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $103.44 |

IN STOCK 1004GSC P-D 4G63T Valve Seat OEM Replacement (Set of 16) 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $45.63 |

IN STOCK - LOW 4041-16GSC P-D 4G63T .035in over OEM Chromoly CNC Spring Seat for Mitsubishi - Set of 16 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $69.65 |

IN STOCK 5040GSC P-D Mitsubishi Evolution 1-9 4G63 Beehive Valve Springs & Ti Retainer Kit 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $399.92 |
IN STOCK 5041GSC P-D Mitsubishi 4G63T Beehive Valve Springs & Ti Retainer Kit 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $399.92 |

IN STOCK - DROPSHIPS 5039GSC P-D 4G63T EVO 8-9 Stage 1 Beehive Valve Springs (Use Factory Retainers and Spring Seats) 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $216.05 |

IN STOCK - DROPSHIPS 22115-16Manley Mitsubishi (4G63-4G63T DOHC 16 Valve) 16pc Valve Springs (1.160/.870) 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $343.76 |
IN STOCK - DROPSHIPS 26115Manley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-... Manley 90-99 Mitsubishi 4G63-4G63T DSM DOHC 16 Valve Spring and Retainer Kit (w/o Valve Locks) (16 e 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $621.59 |
IN STOCK - DROPSHIPS 26115KManley Performance Valve spring and Retainer Kits take the guess work out of making your valvetrain race-ready. Engineered for maximum durability, stability, and precision in high-performance and racing applications, these chrome-silicon alloy springs provide exceptional fatigue resistance and high-... Manley 90-99 Mitsubishi 4G63-4G63T DSM DOHC 16 Valve Spring and Retainer Kit (w/ Valve Locks) 1990-1994 Mitsubishi Eclipse GS 1990-1999 Mitsubishi Eclipse GST / GSX $719.95 |