PACCAR Parts

PACCAR's MX engine family powers Kenworth and Peterbilt trucks across North America, and JAK'S Diesel stocks the aftermarket parts to keep them running. From the popular MX-13 to the MX-11, we carry cylinder heads, fuel injectors, turbochargers, gaskets, and full rebuild kits sourced from PAI Industries and other proven suppliers.

Not sure if a part fits your engine? Send us your OEM, casting, or superseded PACCAR part number and we'll cross-reference it. Same-day shipping on in-stock parts from Colorado, free freight over $1,000, and real diesel people on the phone at (720) 445-6249.