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Knox Trailers · Hardware & Fasteners
W34-1158
In stock · ships from Knoxville
This is a heavy-duty flanged head bolt, M16 diameter with 2.0mm thread pitch, used to secure engine mounts on Kenworth and Peterbilt trucks.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It fastens the engine to the chassis, helping to absorb vibration and maintain proper alignment. Replace it during engine work or if the bolt becomes loose, stripped, or corroded to prevent engine movement and potential damage. Using the correct OEM-grade bolt ensures proper clamp load and safety.
Part Number: W34-1158
MOTOR MOUNT BOLT (PACCAR) 21354AA 25M0224-2
Dealer: Knox Trailers
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