Description: Genuine GM Ignition Coil, part number 12632479. This GM OEM ignition coil converts low battery voltage into the high voltage needed to fire the spark plug, for strong, reliable ignition and smooth running. 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 12632479 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Genuine GM Spark Plug (41-109), part number 12681660. This GM OEM spark plug (41-109) 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 12681660 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Genuine GM Engine Camshaft Position Sensor, part number 12684186. This GM OEM engine camshaft 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 12684186 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Genuine GM Engine Control Module Assembly, part number 12651993. This GM OEM engine control module assembly is the engine's main computer, controlling fuel delivery, ignition timing, idle and emissions systems based on input from sensors. 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 12651993 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.