Kohler — Cooling System Drain and Refill
Maintenance
From a Kohler service manual covering: 10C, 10CC, 10CFC, 10CFZ, 12C, 12CFC, 12CFZ, 40CZ, CZ/12-Lead. Check it applies to your exact model before use.
Applies to: Kohler 10C, Kohler 12C, Ford VSG-411 (10 kW) / VSG-413 (12 kW) engine
Before you start
- Allow engine to cool before opening pressure cap.
Procedure
- Close drain plug and petcock.
- Fill radiator with recommended coolant mixture.
- Operate engine until thermostat opens and upper hose is hot.
- Stop engine and add coolant to 3/4 to 1-1/2 in. (19-38 mm) below filler neck.
Specs & values
- Cooling system capacity 12.4 qts (11.8 L)
- 50% ethylene glycol / 50% water
- Freezing protection to -34 deg F (-37 deg C)
Full service-parts list: Kohler 12C →
Source: Kohler 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.