Exhaust Manifold Gasket - GM (12558275) GM OEM 2001-2007 GM Exhaust Manifold Gasket - 12558275 Manufacturer:GM Part Number:12558275 Brand: SKU: 12558275 Positions:Left, Right Other Names: Manifold Gasket Description: Calif. Lev spec. Exc.Air Pump. 8.1L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Condition:New Vehicle Fitment Year Make Model Body Trim Engine Transmission 2007 Chevrolet Silverado 2500 HD Classic LS, LT, WT 8.1L V8 - Gas 2007 Chevrolet Silverado 3500 Classic LS, LT, WT 8.1L V8 - Gas 2007 GMC Sierra 2500 HD Classic SL, SLE, SLT, WT 8.1L V8 - Gas 2007 GMC Sierra 3500 Classic SL, SLE, SLT, WT 8.1L V8 - Gas 2006 Chevrolet Avalanche 2500 LS, LT 8.1L V8 - Gas 2006 Chevrolet Silverado 2500 HD LS, LT, WT 8.1L V8 - Gas 2006 Chevrolet Silverado 3500 LS, LT, WT 8.1L V8 - Gas 2006 Chevrolet Suburban 2500 LS, LT 8.1L V8 - Gas 2006 GMC Sierra 2500 HD SL, SLE, SLT, WT 8.1L V8 - Gas 2006 GMC Sierra 3500 SL, SLE, SLT, WT 8.1L V8 - Gas 2006 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas 2005 Chevrolet Avalanche 2500 LS, LT 8.1L V8 - Gas 2005 Chevrolet Silverado 2500 HD Base, LS, LT, WT 8.1L V8 - Gas 2005 Chevrolet Silverado 3500 Base, LS, LT 8.1L V8 - Gas 2005 Chevrolet Suburban 2500 LS, LT 8.1L V8 - Gas 2005 GMC Sierra 2500 HD Base, SLE, SLT, WT 8.1L V8 - Gas 2005 GMC Sierra 3500 Base, SLE, SLT, WT 8.1L V8 - Gas 2005 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas 2004 Chevrolet Avalanche 2500 Base 8.1L V8 - Gas 2004 Chevrolet Silverado 2500 HD Base, LS, LT, WT 8.1L V8 - Gas 2004 Chevrolet Silverado 3500 Base, LS, LT, WT 8.1L V8 - Gas 2004 Chevrolet Suburban 2500 LS, LT 8.1L V8 - Gas 2004 GMC Sierra 2500 HD Base, SLE, SLT, WT 8.1L V8 - Gas 2004 GMC Sierra 3500 Base, SLE, SLT, WT 8.1L V8 - Gas 2004 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas 2003 Chevrolet Avalanche 2500 Base 8.1L V8 - Gas 2003 Chevrolet Silverado 2500 HD Base, LS, LT 8.1L V8 - Gas 2003 Chevrolet Silverado 3500 Base, LS, LT 8.1L V8 - Gas 2003 Chevrolet Suburban 2500 LS, LT 8.1L V8 - Gas 2003 GMC Sierra 2500 HD Base, SLE, SLT, WT 8.1L V8 - Gas 2003 GMC Sierra 3500 Base, SLE, SLT 8.1L V8 - Gas 2003 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas 2002 Chevrolet Avalanche 2500 Base 8.1L V8 - Gas 2002 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Gas 2002 Chevrolet Express 2500 Base, LS 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel 2002 Chevrolet Express 3500 Base, LS 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel, 8.1L V8 - Gas 2002 Chevrolet Silverado 2500 HD Base, LS, LT 8.1L V8 - Gas 2002 Chevrolet Silverado 3500 Base, LS, LT 8.1L V8 - Gas 2002 Chevrolet Suburban 2500 LS, LT 8.1L V8 - Gas 2002 GMC Savana 1500 Base, SLT 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Gas 2002 GMC Savana 2500 Base, SLT 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel 2002 GMC Savana 3500 Base, SLT 4.3L V6 - Gas, 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel, 8.1L V8 - Gas 2002 GMC Sierra 2500 HD Base, SL, SLE, SLT 8.1L V8 - Gas 2002 GMC Sierra 3500 Base, SL, SLE, SLT 8.1L V8 - Gas 2002 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas 2001 Chevrolet Express 1500 Base, LS, LT 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Gas 2001 Chevrolet Express 2500 Base, LS 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - CNG, 5.7L V8 - Gas, 6.5L V8 - Diesel 2001 Chevrolet Express 3500 Base, LS 5.7L V8 - CNG, 5.7L V8 - Gas, 6.5L V8 - Diesel, 8.1L V8 - Gas 2001 Chevrolet Silverado 2500 HD Base, LS, LT 8.1L V8 - Gas 2001 Chevrolet Silverado 3500 Base, LS, LT 8.1L V8 - Gas 2001 Chevrolet Suburban 2500 Base, LS, LT 8.1L V8 - Gas 2001 GMC Savana 1500 Base, SLT 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Gas 2001 GMC Savana 2500 Base 4.3L V6 - Gas, 5.0L V8 - Gas, 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel 2001 GMC Savana 3500 Base, SLT 4.3L V6 - Gas, 5.7L V8 - Bi-Fuel, 5.7L V8 - Gas, 6.5L V8 - Diesel, 8.1L V8 - Gas 2001 GMC Sierra 2500 HD SL, SLE, SLT 8.1L V8 - Gas 2001 GMC Sierra 3500 SL, SLE, SLT 8.1L V8 - Gas 2001 GMC Yukon XL 2500 SLE, SLT 8.1L V8 - Gas