Cummins/Onan — Replacing the Engine Air Filter Element
Maintenance · Engine air intake
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKAJ, Cummins/Onan HDKAK
Procedure
- Remove outer and inner covers.
- Remove old air filter element and reassemble with a new element.
- Turn inner cover wingnut three to four clicks past seating.
- Make sure outer cover is seated before tightening its wingnut; retighten if noisy.
Specs & values
- Inner cover wingnut three to four clicks past seating
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKAJ →, Cummins/Onan HDKAK →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.