Cummins/Onan — Changing the Air Cleaner Element (Type A Filter Assembly)
Maintenance
From a Cummins/Onan operator's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DGDA, Cummins/Onan DGDB, Cummins/Onan DGDK, Cummins/Onan 6BT5.9 engine, Cummins/Onan 6BTA5.9 engine
Before you start
- Filters should be handled with care to prevent damage. If the filter becomes damaged, install the recommended replacement part.
Parts for this job
Part numbers from the service-parts lists for Cummins/Onan DGDA, Cummins/Onan DGDB. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Release the three cover clips and remove the air cleaner cover.
- Slowly remove the air filter to reduce the amount of dust dislodged; gently move or twist to break the seal.
- Wipe out the interior of the air cleaner housing and cover with a clean, damp cloth; remove ALL dust.
- Inspect new air filter for shipping damage, especially the inside sealing area; do not install a damaged filter.
- Install new air filter; the sealing area is on the inside of the open end and will stretch over the outlet tube.
- Apply pressure at the outer rim of the filter, not the flexible center; no cover pressure is required to hold the seal.
- Put on the air cleaner cover and secure with the three cover clips.
Tools required
- Clean, damp cloth Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan DGDA →, Cummins/Onan DGDB →
Source: Cummins/Onan operator's 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.