Description: 4.3L. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Dictates the operation of your vehicle's vital systems, which is critical to the performance of your vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems - aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type

Description: 2003-05, 5.3L. 6.2L without supercharger. 6.0 & 6.2L. 7.0L. 2008-09. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: 4.8, 5.3, 6.0 & 6.2L. 2003-05, 5.3L. 6.2L without supercharger. Wire connector. 7.0L. 2008-09. Insulated to help protect the interior conductor wire Form fitting boots on each end prevent moisture from entering the coil or distributor

Description: Vendor:acdelco. Vendor #41-101. 3.4L. 3.5L. 4.3L. Iridium. Platinum. Vendor #41-921. 3.1L. 3.8L, without supercharged.

Description: 4.3L. Sends signals to the engine control module (ECM) to adjust timing Helps prevent damage to the engine caused by pre-ignition

Description: Helps keep engine timing and fuel injection running in sync Helps provide proper alignment, positioning, and spacing for easy installation Synchronizes engine valves and pistons for excellent engine performance