Cummins/Onan QSX15 / QSx15 — Fuel Filter (Spin-On Type) - Remove
Maintenance
For the Cummins/Onan QSX15 / QSx15, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan QSx15, Cummins/Onan QSX15 engine
Before you start
- Fuel is flammable. Keep all cigarettes, flames, pilot lights, arcing equipment, and switches out of work area.
Procedure
- Clean area around fuel filter head and filter. Disconnect wiring harness from water-in-fuel sensor.
- Remove fuel filter with filter wrench, Part No. 3375049.
- Use clean lint-free towel to clean filter head gasket surface.
Tools required
- 3375049 Oil and Fuel Filter Wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan QSx15 →
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.