This oil pump repair kit is designed as a replacement for worn or damaged components in L5 engines.It is compatible with multiple vehicle models equipped with 2.8L, 3.5L, 3.7L, and 4.2L displacements, including LLV and LLR engine variants.Compatible vehicles include: - Rainier 2004–2007 4.2L - Colorado 2004–2012 2.8L, 2.9L, 3.5L, 3.7L - Trailblazer 2002–2009 4.2L - Trailblazer EXT 2002–2006 4.2L - Canyon 2004–2012 2.8L, 2.9L, 3.5L, 3.7L - Envoy 2002–2009 4.2L - Envoy XL 2002–2006 4.2L - Envoy XUV 2004–2005 4.2L - H3 2006–2010 3.5L, 3.7L - H3T 2009–2010 3.7L - Ascender 2003–2008 4.2L - i-280 2006 2.8L - i-290 2007–2008 2.9L - i-350 2006 3.5L - i-370 2007–2008 3.7L - Bravada 2002–2004 4.2L - 9-7X 2005–2009 4.2L The kit is engineered to match the fit and function of the component.Reference part numbers: 12577097, 12586647. Oil pump repair kit designed for compatibility with 3.5L and 3.7L LLV and LLR engine models, providing proper fitment and performance.Suitable for use in H3 and Trailblazer vehicles equipped with L5 engines, including 2.8L, 3.5L, 3.7L, and 4.2L displacements.Direct replacement for worn or damaged oil pump components to help restore lubrication system functionality.Manufactured to meet industry-standard specifications for consistent under various driving conditions.Designed for installation with standard tools, supporting routine maintenance and repair applications. Brand Name JNIIZVNM Manufacturer JNIIZVNM Model Number JNIIZVNM157 Automotive Fit Type Universal Fit Included Components Parts set Manufacturer Part Number JNIIZVNM157