Fuel Injectors. Spider Vortec Fuel Injector Assembly For GMC Chevy Trucks Pickup V6 4.3L FJ503. Not fit For Chevy Silverado 1500 V6 4.3L Multiport Fuel Injection Conversion 1999-2002. Not fit For GMC S-15 Sonoma V6 4.3L Multiport Fuel Injection Conversion 1996-2002.
