Description: DTS. Lucerne. 4.6l. XLR. STS, STS-v. 4.6l. SRX. 4.6l. 2nd design. STS, STS-v. 4.4l.

Description: 4.4L. One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life Double platinum point pad ...

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

Description: DTS. Lucerne. 4.6l. All. SRX. 4.6l. 4.4L. 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 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

Description: 6.0 & 7.0L, 6.2l without supercharged. 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