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Post Onsite · Hardware & Fasteners
378774
In stock · ships from Knoxville
This is a tab lock washer used to secure nuts or bolts against loosening in high-vibration environments like power take-off (PTO) applications.
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.
The washer has one or more tabs that bend against a flat of the fastener after tightening. You typically replace it when the tab is fatigued, broken, or if the hardware is removed for maintenance.
Part Number: 378774
LOCK TAB
Unit: ea
Dealer: Post Onsite
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