12Pcs Exhaust Manifold Bolts for Chevy GMC Cadillac 03413B 11518860 674014

The Exhaust Manifold Bolt Kit is designed for select LS and Vortec engine applications, including 4.8L, 5.3L, 6.0L, and 6.2L engines. This kit includes 12 bolts made from grade 10.9 alloy steel with zinc plating. The M8x1.25 thread, 30mm thread length, and 37.6mm overall length are designed to match original mounting points. These LS exhaust manifold bolts help secure the exhaust manifold to the cylinder head, supporting a stable connection and helping reduce leak risk under vibration and high temperature.Specifications: Bolt Grade: 10.9 Alloy Steel; Thread Size: M8x1.25; Thread Length: 30mm; Overall Length: 37.6mm; Head Width: 9.65mm; Head Type: Hex; Thread Style: Right Hand, Fine, Full; Package Contents: 12 Exhaust Manifold Bolts.These exhaust header bolts and LS header bolts can be used for exhaust manifold repair, maintenance, and replacement installation. They also serve as exhaust manifold screws, manifold bolts, and exhaust bolts for LS engine exhaust studs bolts and bolt connection exhaust applications.Compatible with the following vehicles:For BuickFor 2004-2005 Buick RainierFor CadillacFor 2002-2013 Cadillac EscaladeFor 2003-2013 Cadillac Escalade ESVFor 2002-2013 Cadillac Escalade EXTFor ChevroletFor 2007-2013 Chevrolet AvalancheFor 2002-2006 Chevrolet Avalanche 1500For 2003-2013 Chevrolet Express 1500 VanFor 2003-2013 Chevrolet Express 2500 VanFor 2003-2012 Chevrolet Express 3500 VanFor 1999-2013 Chevrolet Silverado 1500 V8 (4.8L, 5.3L, 6.0L, 6.2L)For 2007 Chevrolet Silverado 1500 Classic V8 (4.8L, 5.3L, 6.0L, 6.2L)For 2001-2003 Chevrolet Silverado 1500 HDFor 2005-2006 Chevrolet Silverado 1500 HDFor 2007 Chevrolet Silverado 1500 HD ClassicFor 1999-2004 Chevrolet Silverado 2500For 2001-2013 Chevrolet Silverado 2500 HDFor 2007 Chevrolet Silverado 2500 HD ClassicFor 2001-2006 Chevrolet Silverado 3500For 2007 Chevrolet Silverado 3500 ClassicFor 2007-2013 Chevrolet Silverado 3500 HDFor 2000-2013 Chevrolet Suburban 1500For 2000-2013 Chevrolet Suburban 2500For 2000 Chevrolet Tahoe (without Z71 Package)For 2001-2013 Chevrolet TahoeFor 2002-2005 Chevrolet TrailblazerFor 2002-2005 Chevrolet Trailblazer EXTFor GMCFor 2002-2005 GMC EnvoyFor 2002-2005 GMC Envoy XLFor 2004-2005 GMC Envoy XUVFor 2003-2013 GMC Savana 1500 VanFor 2003-2012 GMC Savana 2500 VanFor 2003-2012 GMC Savana 3500 VanFor 1999-2013 GMC Sierra 1500 V8 (4.8L, 5.3L, 6.0L, 6.2L)For 2007 GMC Sierra 1500 Classic V8 (4.8L, 5.3L, 6.0L, 6.2L)For 2001-2003 GMC Sierra 1500 HDFor 2005-2006 GMC Sierra 1500 HDFor 2007 GMC Sierra 1500 HD ClassicFor 1999-2004 GMC Sierra 2500For 2001-2013 GMC Sierra 2500 HDFor 2007 GMC Sierra 2500 HD ClassicFor 2011-2013 GMC Sierra 3500 HD DenaliFor 2000-2013 GMC YukonFor HummerFor 2003-2009 Hummer H2For IsuzuFor 2003-2005 Isuzu AscenderFor OldsmobileFor 2002-2004 Oldsmobile BravadaFor SaabFor 2005 Saab 9-7XOE Reference Numbers: 03413B, 11518860, 11609481, 6506775AA, 6507423AA, 6507938AA, 674014.Package Includes: 12 Exhaust Manifold Bolts.Note: Verify vehicle year, engine size, and original bolt specifications before purchase. Install according to the torque specifications in the service manual.

• Fitment: For Buick 2005-2020, For Cadillac 2002-2022, For Chevrolet 1996-2022, For Chrysler 2001-2014, For Dodge 2001-2021, For Gmc 1996-2022, For Hummer 2004-2010, For Isuzu 2003-2008, For Jeep 2003-2010 (See details page for more models).
• Replacement Part Number: 03413B, 11518860, 11609481, 6506775AA, 6507423AA, 6507938AA, 674014; designed for select LS and Vortec engines including 4.8L, 5.3L, 6.0L, and 6.2L; verify year and engine before purchase
• M8x1.25 Exhaust Manifold Bolt: This exhaust manifold bolt set includes 12 exhaust bolts with M8x1.25 thread, 30mm thread length, and 37.6mm overall length
• Grade 10.9 Alloy Steel: Made from grade 10.9 alloy steel with zinc plating for strength, thread stability, and resistance to common engine bay exposure
• Secure Fastening: These ls exhaust manifold bolts provide a strong connection between the exhaust manifold and cylinder head, helping reduce leak risk and supporting exhaust system integrity
• Package Includes: 12Pcs Exhaust Manifold Bolts
• Fitment Accuracy Notice: To avoid any issues with part fitment, please make sure to select your vehicle's exact details (year, make, model, trim) from the dropdown in the upper left corner of our page; this will allow us to provide you with the most accurate compatibility information