Kohler — Oil Cooler Cleaning (17/18 kW)
Maintenance
From a Kohler operator's manual covering: 12RES, 12TRES, 17RES, 18RES, 18TRES, 8.5/12 RES, 8.5RES. Check it applies to your exact model before use.
Applies to: Kohler 12RES, Kohler 12TRES, Kohler 17RES, Kohler 18RES, Kohler 18TRES, Kohler 8.5RES, Kohler CH640 engine, Kohler CH 740 engine, Kohler CH 980 engine
Procedure
- Remove the top mounting screw and loosen the two side screws.
- Lift off the cylinder shroud to access the oil cooler under the No. 2 cylinder shroud.
- Clean the outside of the oil cooler fins with a brush or with compressed air.
- Keep the oil cooler free of debris.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Kohler 12RES →, Kohler 12TRES →, Kohler 17RES →, Kohler 18RES →, Kohler 18TRES →, Kohler 8.5RES →
Source: Kohler 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.