This top quality Standard Secondary Air Injection Bypass Valve generally fits Chevrolet - GMC vehicles and includes models such as Blazer - C1500Suburban - C2500Suburban - K1500Suburban - K2500Suburban - C3500 - K3500 - R2500 - R3500 - V3500 - Jimmy - S15Jimmy - Sonoma - Syclone - Sierra1500 - Sierra2500 with trims including . Engine types may include 5.0 V8 GAS CARB - 5.7 V8 GAS CARB - 4.3 V6 GAS FI - 7.4 V8 GAS CARB - 4.8 V8 GAS FI - 5.3 V8 GAS FI. This part fits vehicles made in the following years 2001 - 2000 - 1999 - 1994 - 1993 - 1992 - 1991 - 1990 - 1989 1988 1987.