Replacement For - OE Number:25176061; suitable for Chevy C3500HD 8.1L 2001-2002 for Chevy Silverado 2500 HD 8.1L 2001-2006 for Chevy Silverado 2500 HD Classic 8.1L 2007 for Chevy Silverado 3500 8.1L 2001-2006 for Chevy Silverado 3500 Classic 8.1L 2007 for Chevy Suburban 2500 8.1L 2001-2006 for GMC Sierra 2500 HD 8.1L 2001-2006 for GMC Sierra 2500 HD Classic 8.1L 2007 for GMC Sierra 3500 8.1L 2001-2006 for GMC Sierra 3500 Classic 8.1L 2007 for GMC Yukon XL 2500 8.1L 2001-2006.
Function - High-efficient fuel sprays and High Impedance Coils enable fast start-up in cold environments, low fuel consumption, and better performance.
Material - Durable effective rubber O-Ring that can seal fuel vapors in and keep them from leaking.
Installation - Professional installation is highly recommended: Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune. We also suggest that you check the other component of the engine before installation.