Cummins/Onan CFP5E / CFP7E — Coolant Thermostat Removal/Installation
Repair & overhaul · Cooling system
For the Cummins/Onan CFP5E / CFP7E, from the Cummins/Onan owner's manual.
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Before you start
- Never operate engine without thermostat installed.
Procedure
- Remove upper coolant hose clamps and upper coolant hose at thermostat housing.
- Remove two thermostat housing flange cap screws and thermostat flange.
- Remove thermostat and gasket from housing.
- Clean housing flange faces of dirt, oxidation and sludge.
- Install thermostat in housing.
- Install new thermostat seal on thermostat housing flange surface.
- Replace thermostat flange and cap screws.
Specs & values
- EC 9045 Kit contains thermostat and seal
Source: Cummins/Onan owner'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.