Cummins/Onan — Removing Fuel Tank and Fuel Filter
Repair & overhaul · Fuel system
From a Cummins/Onan service manual covering: K1000, K1200, K1400, K1800, K2100, K2500, K3000, K3050, K3500, K400, K450, K800. Check it applies to your exact model before use.
Applies to: Cummins/Onan K1000, Cummins/Onan K450
Before you start
- Gasoline fire hazard
Parts for this job
Part numbers from the service-parts lists for Cummins/Onan K1000, Cummins/Onan K450. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Close fuel filter cock
- Disconnect fuel pipe at carburetor side
- Loosen fuel filter tightening bolt
- Remove fuel filter from tank body
- Remove four fuel tank tightening bolts
- Remove fuel tank with filter connected
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan K1000 →, Cummins/Onan K450 →
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.