Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Caterpillar · Hardware & Fasteners
2744491
In stock · ships from Knoxville
This is a Caterpillar rocker arm adjustment screw. It threads into the rocker arm to set the precise clearance (valve lash) between the rocker arm and the valve or injector mechanism on Cat diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Caterpillar
Caterpillar
Exact engine models not confirmed from the sources. Verify that your rocker arm group calls for a 3/8-24 x 1.20-inch adjustment screw before ordering.
Part data verified against 2 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
Correct adjustment is essential for smooth engine operation, preventing excessive noise and valvetrain damage. Replace this screw when the threads are stripped, the adjustment tip is worn, or the lock nut no longer reliably holds the set gap.
Part Number: 2744491
SCREW ROCKER
Vendor: STOWERS MACHINERY
Dealer: KP Services Crossville
Compatibility, alternatives, and more