Check the OEM number and housing
Kenworth T680 and Peterbilt 579 share Paccar engineering. Many air and fuel filters can interchange across brands, but only when the OEM number and housing match.
Air filters
- D371061 — common on 2022+ T680 / 579
- P621725 — PowerCore G2 panel on select T680/T880 and 567/579 builds
- P611696 — older or alternate Kenworth airboxes (T680/T800/T880/W900)
Fuel filtration
Confirm whether you have a Fuel Pro FH230, Diesel Pro FH234, or other processor before ordering FS19765 or related elements.
Frequently Asked Questions
Do T680 and 579 use the same air filter?
Many 2022+ trucks share Paccar D371061. Earlier PowerCore applications may list P621725. Confirm the airbox and OEM chart.
What fuel separator do Paccar trucks use?
Fuel Pro and Diesel Pro housings are common. FS19765 is a frequent element; match the element length and housing model first.
This guide is general reference material. Its truck and part examples do not confirm that any CORALFLY catalog product fits your application; product fitment is shown only when explicitly listed on the product. Contact CORALFLY if you need help.