Timing Chain – GM (12597307)

Timing Chain is a toothed component that transfers drive through a set ratio. Tooth count, pressure angle and hub offset are what make one gear interchangeable and another not.

Replace the Timing Chain when you find chipped or spalled teeth, when the pattern shows contact concentrated at one end, or when the transmission is apart for another failure. Inspect the mating gear before refitting.

The Timing Chain in this listing carries part number 12597307 and sits in the Camshafts & Timing category. The number stamped on the original part is the only reliable cross-reference.

Genuine GM part for the Timing Chain. Where the manufacturer has superseded a number, the current reference is the one that ships.