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Post Onsite · Body & Cab
HLK2129
In stock · ships from Knoxville
This is a left-hand (driver's side) door latch assembly designed for certain Peterbilt and Mack heavy-duty truck models.
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 is the mechanism that keeps the cab door securely closed and allows it to be opened from the inside or outside. You typically replace this part when the door becomes difficult to close, pops open while driving, or the latch mechanism fails.
Part Number: HLK2129
Door Latch LH Peterbilt-Mack
Dealer: Post Onsite
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