Caterpillar 3406E — Fuel Filter Base - Assemble

Repair & overhaul · Fuel system

For the Caterpillar 3406E, from the Caterpillar service manual.

Applies to: Caterpillar 3406E, Caterpillar 3406E / 3456 engine

Before you start

Check O-ring condition; replace if worn or damaged

Parts for this job

1R0749 Fuel filter — Caterpillar 3406E Amazon Amazon eBay $135.88 eBay $135.88 NAPA $28.51 NAPA $28.51 KuduParts $17.00 FridayParts $47.50
1165436 Fuel filter — Caterpillar 3406E / 3456 engine Amazon eBay

Part numbers from the service-parts lists for Caterpillar 3406E, Caterpillar 3406E / 3456 engine. Verify against your serial number before ordering; some links are affiliate links.

Procedure

Install O-ring seals on check valve
Install check valve in fuel filter base
Install O-ring seals on bypass valve
Install bypass valve in fuel filter base

Full service-parts list: Caterpillar 3406E →, Caterpillar 3406E / 3456 engine →

Source: Caterpillar 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.

More Caterpillar repair guides →