These are the same for all C12 engine serial numbers. They're available and ready to ship.
The C12 engine model takes 6 intake rocker arms and 6 exhaust rocker arms. Products are built to OEM standards for material composition and specifications ensuring a high quality product backed by a 1 year warranty policy.
Intake or exhuast valve rocker for Cat C12 Part #1159398/1159399
Free ground shipping on all shipments within the Continental US!
This product comes with a 1 year warranty policy