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Paccar · Filtration
K37-1021
In stock · ships from Knoxville
Genuine Paccar fuel filter element with extended length, engineered for heavy-duty diesel engines in Peterbilt and Kenworth 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 captures dirt, water, and other contaminants from diesel fuel to safeguard injectors and high-pressure fuel system parts. Replace according to your service interval or when you experience power loss, hard starting, or a fuel system warning light. The extended design provides higher dirt-holding capacity for longer change intervals.
Part Number: K37-1021
FUEL FILTER
Category: Filters
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
