Product Description
Genuine GM 12582719 LS3 1.590" Exhaust Valves – Set of 8
Fits Select 2007-2018 LS-Based 6.0L and 6.2L Engines with Rectangle Port Head Castings 5364, 821 and 823
Replace worn exhaust valves in compatible rectangle port LS cylinder heads with this set of eight Genuine GM 12582719 exhaust valves. Each OEM replacement valve features a 1.590" valve head diameter, an 8mm stem diameter and solid stem construction. Designed for the specified 6.0L and 6.2L LS-based applications, these factory replacement exhaust valves fit cylinder head casting numbers 5364, 821 and 823 used with the listed LS3, L99, L92, LY6, L76, L77, L96, L9H and L94 engine applications. This eight-valve set supplies the exhaust valves for both cylinder heads during a compatible V8 cylinder head rebuild or valvetrain repair.
Key Features & Benefits
- Genuine GM Part Number 12582719: Original-equipment GM exhaust valves for the supported rectangle port LS cylinder heads. The GM part number provides a direct reference when selecting factory replacement valves for an engine repair or cylinder head rebuild.
- 1.590" Exhaust Valve Head Diameter: Each valve features the specified 1.590" head diameter for the listed applications. These valves replace the corresponding factory exhaust valves in compatible 6.0L and 6.2L LS-based engines.
- 8mm Solid Stem Design: Built with an 8mm valve stem diameter and solid stem construction. This OEM replacement configuration is intended for the supported factory cylinder head applications.
- Rectangle Port Cylinder Head Fitment: Fits head casting numbers 5364, 821 and 823 in the specified LS engine applications. Supported engine codes include LS3, L99, L92, LY6, L76, L77, L96, L9H and L94.
- Set of Eight Exhaust Valves: Includes eight Genuine GM replacement exhaust valves, providing the exhaust-side valve quantity for one compatible V8 engine. This set supports servicing both cylinder heads together during a rebuild.
Key Fitments
Engine Codes: LS3 L99 L92 LY6 L76 L77 L96 L9H L94
Rectangle Port Head Casting Numbers: 5364, 821, 823
Applications Include (6.0L and 6.2L gasoline models only):
- CADILLAC ESCALADE 2007-2014
- CHEVROLET AVALANCHE 2007-2009
- CHEVROLET CAMARO 2010-2015
- CHEVROLET CAPRICE 2011-2017
- CHEVROLET CORVETTE 2008-2013
- CHEVROLET EXPRESS 2500 2008-2018
- CHEVROLET EXPRESS 3500 2008-2018
- CHEVROLET EXPRESS 4500 2009-2018
- CHEVROLET SILVERADO 1500 2007-2013
- CHEVROLET SILVERADO 2500 2007-2018
- CHEVROLET SILVERADO 3500 2007-2018
- CHEVROLET SS 2014-2017
- CHEVROLET SUBURBAN 2016-2017
- CHEVROLET SUBURBAN 1500 2007-2009
- CHEVROLET SUBURBAN 2500 2007-2013
- CHEVROLET TAHOE 2008-2013
- GMC SAVANA 2500 2008-2015
- GMC SAVANA 3500 2008-2015
- GMC SAVANA 4500 2009-2015
- GMC SIERRA 1500 2007-2013
- GMC SIERRA 2500 2007-2018
- GMC SIERRA 3500 2007-2018
- GMC YUKON 2007-2014
- GMC YUKON XL 1500 2007-2014
- GMC YUKON XL 2500 2007-2013
- PONTIAC G8 2008-2009
