Caterpillar C27 / C32 — Fuel System Primary Filter (Water Separator) Element - Replace
Maintenance
For the Caterpillar C27 / C32, from the Caterpillar owner's manual.
Applies to: Caterpillar C32
Before you start
- Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
- The water separator is under suction during normal engine operation. Ensure the drain valve is securely tightened.
Parts for this job
- 1R-0762 Fuel filter Amazon eBay $33.99 eBay $34.95 NAPA $43.65 FridayParts $30.63
Part numbers from the service-parts list for Caterpillar C32. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Stop the engine and turn the start switch to the OFF position.
- Shut off the fuel tank supply valve to the engine.
- If equipped with a drain valve (3), open the drain valve to drain fuel from the filter case; close the drain valve.
- Remove the fuel filter bowl (1) and wash it with clean diesel fuel.
- Remove the fuel filter (2).
- Clean the gasket sealing surface of the fuel filter base; ensure all old gasket is removed.
- Apply clean diesel fuel to the new fuel filter gasket.
- Install the new fuel filter (2); spin on until the gasket contacts the base, then tighten an additional 3/4 turn by hand.
- Install the clean fuel filter bowl (1) on the new fuel filter.
- Open the fuel tank supply valve.
- Start the engine and check for leaks; run the engine one minute, stop and check again.
Specs & values
- Change element if pressure is at 50 to 70 kPa (15 to 20 inches Hg)
Full service-parts list: Caterpillar C32 →
Source: Caterpillar 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.