Replace OE: 12617944, 12558573, 12600530, 12620947 Compatibility: Designed for LS series engines including LS1, LS2, LS3, LS6, LM7, LR4, LQ4, L59, LQ9, LM4, L33, LH6, L92, L76, LY2, LY5, LY6, LC9, LFA, LH8, LMG, L98, L9H, L20, L94, LZ1, L99, L96, LC8, and L77 Fit for Chevy: 1999-2006 Silverado 1500 4.8L/5.3L; 2007-2013 Silverado 1500 (Classic & New Body) 4.8L/5.3L; 2001-2010 Silverado 2500HD/ 3500HD 6.0L; 2000-2013 Suburban 1500/2500 5.3L/6.0L; 2000-2013 Tahoe 4.8L/5.3L; 2002-2009 Avalanche 1500/2500 5.3L/6.0L; 2003-2006 Express 1500/2500/3500 4.8L/6.0L; 2007-2014 Express 2500/3500 / 8L/6.0L; 2003-2009 Trailblazer EXT 5.3L; 2008-2013 Silverado Hybrid 6.0L Fit for GMC: 1999-2006 Sierra 1500 4.8L/5.3L; 2007-2013 Sierra 1500 4.8L/5.3L; 2001-2010 Sierra 2500HD/3500HD 6.0L; 2000-2013 Yukon/Yukon XL 1500/2500 4.8L/5.3L/6.0L; 2003-2006 Savana 1500/2500/3500 4.8L/6.0L; 2007-2014 Savana 2500/3500 / 8L/6.0L; 2003-2009 Envoy XL 5.3L Fit for Cadillac: 2004-2005 CTS; 2002-2013 Escalade/ ESV/ EXT 6.0; for Pontiac: 1998-2001 Firebird; 2008 G8; 2006-2007 Grand Prix; 2004-2006 GTO; for Hummel: 2003-2009 H2 6.0L; 2008-2010 H3; 2009-2010 H3T Exhaust Manifold Gasket with Bolts

Replace OE Number:
12617944
12558573
12600530
12620947

Compatible with Engine models:
LS1, LS2, LS3, LS6, LM7, LR4, LQ4, L59, LQ9, LM4, L33, LH6, L92, L76, LY2, LY5, LY6, LC9, LFA, LH8, LMG, L98, L9H, L20, L94, LZ1, L99, L96, LC8, and L77

Fits for Chevy:
1999-2006 Silverado 1500 4.8L/5.3L
2007-2013 Silverado 1500 (Classic & New Body) 4.8L/5.3L
2001-2010 Silverado 2500HD/ 3500HD 6.0L
2000-2013 Suburban 1500/2500 5.3L/6.0L
2000-2013 Tahoe 4.8L/5.3L
2002-2009 Avalanche 1500/2500 5.3L/6.0L
2003-2006 Express 1500/2500/3500 4.8L/6.0L
2007-2014 Express 2500/3500 / 8L/6.0L
2003-2009 Trailblazer EXT 5.3L
2008-2013 Silverado Hybrid 6.0L

Fits for GMC:
1999-2006 Sierra 1500 4.8L/5.3L
2007-2013 Sierra 1500 4.8L/5.3L
2001-2010 Sierra 2500HD/3500HD 6.0L
2000-2013 Yukon/Yukon XL 1500/2500 4.8L/5.3L/6.0L
2003-2006 Savana 1500/2500/3500 4.8L/6.0L
2007-2014 Savana 2500/3500 / 8L/6.0L
2003-2009 Envoy XL 5.3L

Fits for Cadillac:
2004-2005 CTS
2002-2013 Escalade/ ESV/ EXT 6.0

Fits for Pontiac:
1998-2001 Firebird
2008 G8
2006-2007 Grand Prix
2004-2006 GTO

Fits for Hummel:
2003-2009 H2 6.0L
2008-2010 H3
2009-2010 H3T

Package Include:
2* Exhaust Manifold Gasket
12* Bolts
12* Washer