GM Genuine Parts Camshaft Sprocket
OE
Pack of 1

GM Genuine Parts Camshaft Sprocket

GM Part #12589766

MSRP$67.01*

GM Genuine Parts Engine Timing Camshaft Sprockets are designed, engineered, and tested to rigorous standards, and are backed by General Motors.

  • Helps maintain the timing between the crankshaft and the camshaft
  • Attaches to the end of the camshaft
  • Made to provide top performance and dependable service

Pack of 1

About this product

GM Genuine Parts Engine Timing Camshaft Sprockets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sprockets help maintain the timing between the crankshaft and the camshaft.GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

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  • Helps maintain the timing between the crankshaft and the camshaft
  • Attaches to the end of the camshaft
  • Made to provide top performance and dependable service
  • Synchronizes camshaft with crankshaft with the use of a timing chain
  • Key component in the ignition firing sequence
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Inside Diameter0.569 in / 14.45 mm
ClassificationOE
Thickness0.298 in / 7.57 mm
MaterialSintered Powdered Metal
Tooth Quantity38

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Before purchasing and installing an engine timing camshaft sprocket, make sure it is the correct fit for your vehicle.

  • Keep oil and filter changed and level full for proper lubrication
  • Use recommended viscosity oil to keep timing components lubricated
  • Have timing chain and sprockets changed at manufacturers recommended mileage
  • Regularly inspect engine timing camshaft sprockets for signs of damage or wear and replace them if signs of damage are found.

Troubleshooting Tips:

  • Engine Air Filters
  • Worn teeth on the camshaft sprocket

ModelBody StyleTrimYear(s)
Avalanche 25002004, 2005, 2006
C4500 Kodiak2004, 2005, 2006, 2007, 2008, 2009
C5500 Kodiak2004, 2005, 2006, 2007, 2008, 2009
C6500 Kodiak2004, 2005, 2006, 2007, 2008, 2009
C7500 Kodiak2004, 2005, 2006, 2007, 2008, 2009

Frequently Asked Questions

Yes. If worn to a point that the timing chain skips a tooth this causes a misfire in the engine, if the timing chain skips multiple teeth this could render the engine inoperative and in some cases destroy the engine in an interference engine.

Yes, the teeth on the sprockets will be worn to match the old chain stretch.

The chain rides along a guide rail and has a tensioner that keeps it on the sprocket teeth, when replacing the chain all components should be replaced to help ensure proper tension and alignment of chain.