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 Knock Sensor, part number 12729597. This GM OEM knock 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 12729597 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: 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: Genuine GM Engine Control Module Assembly, part number 12704477. This GM OEM engine control module assembly is an electronic control module that operates and monitors its vehicle system using inputs from sensors and switches. 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 12704477 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.

Description: Genuine GM M6x1x23 Multi-Purpose Bolt, part number 11519376. This GM OEM m6x1x23 multi-purpose bolt is an M6 x 1.0 x 23mm fastener made to GM strength and coating specifications for a secure, factory-correct installation. 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 11519376 before ordering. Shipped from Gateway Buick GMC, an authorized GM dealer.