Tbs-10101 GM TBI 220 injector gasket oring o-ring kit TBI injector change gasket set 1986-95 TBI motors Fits: 1986-95 2.8L 4.3L 5.0L 5.7L 7.4L TBI motors Silverado Sierra Suburban Yukon Blazer Camaro Firebird Caprice S10 Jimmy 2nd photo shows typical TBI injector assembly these fit