Description: Genuine GM Spark Plug (41-110), part number 12680072. This GM OEM spark plug (41-110) ignites the air-fuel mixture in the combustion chamber, delivering a strong, consistent spark. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12680072 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: 6.2L with supercharger. 5.3L. 5.7L. Helps protect spark plug boot from cracking and deteriorating from heat

Description: Genuine GM Engine Crankshaft Position Sensor, part number 12560228. This GM OEM engine crankshaft position sensor monitors operating conditions and sends signals to the vehicle's control modules. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12560228 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Genuine GM Coil, part number 12739916. This GM OEM coil is a factory engine lubrication component that helps maintain proper oil supply, level or filtration. Made by General Motors to original equipment standards for correct fit, finish and durability—no guesswork with aftermarket parts. Verify fitment using your VIN or GM part number 12739916 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

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