Kohler — Replacing Fuel/Water Separator Filter Element
Maintenance
From a Kohler service manual covering: KD1250-4, KD1750, KD2000, KD2500, KD3250, KD4000, KD700-KD4000, TP-7143. Check it applies to your exact model before use.
Applies to: Kohler KD1250-4, Kohler KD1750, Kohler KD2000, Kohler KD2500, Kohler KD3250, Kohler KD4000
Before you start
- Explosive fuel vapors. Use extreme care when handling fuels.
Procedure
- Disable generator set and remove from service.
- Close fuel shut-off valve if present.
- Disconnect fuel-in-water sensor.
- Open vent plug and remove water drain plug to drain fuel.
- Remove element from mounting head by twisting counterclockwise.
- Remove bowl from element; inspect components; lubricate O-ring with clean diesel fuel.
- Install bowl onto new element; lubricate and install assembly onto mounting head.
- Replace drain plug; connect sensor; open fuel valve; prime with manual primer pump.
Tools required
- strap wrench or filter wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Kohler KD1250-4 →, Kohler KD1750 →, Kohler KD2000 →, Kohler KD2500 →, Kohler KD3250 →, Kohler KD4000 →
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.