Cummins/Onan Onan P4500i / P4500 — Draining the Float Bowl
Maintenance · Fuel system
For the Cummins/Onan Onan P4500i / P4500, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan Onan P4500i, Cummins/Onan P4500
Before you start
- Dispose of drained fuel properly; never into a sewer or on the ground.
Procedure
- Remove engine service panel to access carburetor.
- Route float bowl drain hose out and place container beneath.
- Loosen float bowl drain screw until fuel drains.
- Allow fuel to drain, then tighten drain screw.
- Install engine service panel.
Tools required
- Container Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan Onan P4500i →, Cummins/Onan P4500 →
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.