GMC Sierra 2500 HD Ignition & Spark Plugs
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We stock Genuine OEM GMC Ignition & Spark Plugs for your GMC Sierra 2500 HD. OEM ignition and spark plugs are designed specifically for your vehicle's engine, ensuring optimal performance and fuel efficiency. These parts are responsible for igniting the fuel in the combustion chamber, making them critical components of your engine's operation. By choosing OEM ignition and spark plugs, you can be confident in their quality and reliability, which can help extend the life of your engine and prevent potential damage or issues. Manufacturer's Warranty Included. Guaranteed Fit. Experts standing by.
1999-2007 GM - Ignition Coil Wire
Part Number: 12601824
GM Other Names: Wire Harness, 356g
Replaces: 12562256, 12582189, 15320906
Description: 8 cylinder. 5.3 & 6.0L. 2003-07, mitsubishi. Insulated to help protect the interior conductor wire
Form fitting boots on each end...
MSRP $275.85
$147.90
1998-2007 GM - Ignition Lock Cylinder
Part Number: 15815961
GM Notes: Included with steering column assembly.
Other Names: Ignition Lock Cylinder
Replaces: 12472980
Description: This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
MSRP $92.15
$58.17
2005-2020 GM - Ignition Coil Wire
Part Number: 12579355
GM Other Names: Wire Harness, 357a
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...
MSRP $248.98
$133.52
2003-2007 GM - Ignition Lock Cylinder
Part Number: 15785100
GM Other Names: Ignition Lock Cylinder
Replaces: 88956845
Description: All. Manual trans. This part requires programming and/or special setup procedures GM Service Information describes the procedures and...
MSRP $89.54
$56.52
2014-2025 GM - Ignition Lock Cylinder
Part Number: 84668679
GM Other Names: Ignition Lock Cylinder
Replaces: 22855177, 23476975, 84553528
Description: Express, savana. Silverado, sierra. Tahoe, Yukon, Escalade. Suburban, Yukon XL. Escalade ESV. Suburban 3500hd. This part requires...
MSRP $111.86
$69.59
2004-2014 GM - Ignition Lock Cylinder Case
Part Number: 26088811
GM Notes: Included with steering column assembly.
Applications: W/TILT WHEEL.
Other Names: Ignition Lock Housing
Description: Silverado,sierra. Envoy/Rainier/Trailblazer. 4wd. 2008-09, without power tilt. Bravada. 4wd. This GM Genuine Part is designed,...
MSRP $248.04
$151.63
2005-2020 GM - Ignition Coil Mounting Bracket
Part Number: 12580353
GM Other Names: Bracket
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...
MSRP $41.52
$23.82
2003-2007 GM - Uncoded Ignition Lock Cylinder
Part Number: 15298923
GM Other Names: Ignition Lock Cylinder, d1469g
Replaces: 88956844
Description: Auto trans. All. Incl.Housing. 4 Position. Optional. 4 Pin Connector. Yukon & denali. 2003-07. Hummer H2. Escalade. This part requires...
Backordered
1998-2007 GM - Ignition Knock (Detonation) Sensor
Part Number: 12589867
GM Other Names: Knock Sensor, 965
Replaces: 10456603
Description: 4.8, 5.3 & 6.0L. 5.3l. Corvette. 2nd design. 5.7L, without locating tab. Hummer H2. CTS. 5.7l. SSR. GTO. Sends signals to the engine...
MSRP $127.00
$69.31
2013-2025 GM - Ignition Knock (Detonation) Sensor
Part Number: 12623095
GM Other Names: Knock Sensor
Description: Sends signals to the engine control module (ECM) to adjust timing
Helps prevent damage to the engine caused by pre-ignition
MSRP $44.02
$25.25
2004-2020 GM - Ignition Knock (Detonation) Sensor
Part Number: 12623730
GM Other Names: Knock Sensor, 1163
Replaces: 12570125
Description: Sends signals to the engine control module (ECM) to adjust timing
Helps prevent damage to the engine caused by pre-ignition
MSRP $25.30
$14.52
2014-2020 GM - Ignition Lock Cylinder Case
Part Number: 22834639
GM Notes: Included with gear assembly. Included with steering column.
Other Names: Ignition Lock Housing
Description: Sierra, silverado. Without power tilt. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
MSRP $107.74
$58.80
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