Caterpillar 3406 — Change Engine Crankcase Oil and Filters
Maintenance
For the Caterpillar 3406, from the Caterpillar operator's manual.
Applies to: Caterpillar 3406
Before you start
- Hot oil or components can cause personal injury if they contact skin. Use caution when draining oil or changing filters.
- Do not overtighten the filter.
Parts for this job
- 1R1808 Oil filter Amazon eBay $141.00 eBay $59.99 NAPA $45.70 NAPA $45.70 KuduParts $80.00 FridayParts $81.99
Part numbers from the service-parts list for Caterpillar 3406. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- The truck must be level, the parking brake applied, engine stopped, and the oil warm.
- Remove the crankcase drain plug and allow the oil to drain.
- Remove the drain plug from the BrakeSaver, if equipped.
- Remove and discard the oil filter.
- Clean the filter base housing. Be sure all of the old seal is removed.
- Coat the seal of a new element with clean engine oil.
- Install the new filter by hand. Turn the filter 3/4 turn after the seal contacts the base.
- Install the drain plug.
- Fill the crankcase to the FULL mark on the dipstick. See the REFILL CAPACITIES CHART in the ENGINE SPECIFICATIONS section.
- Start the engine and inspect for leaks.
Specs & values
- Turn the filter 3/4 turn after the seal contacts the base.
- Remote mounted or auxiliary filters require additional oil. A 12 qt. supplemental oil filtration system extends the normal interval for CD oils to 16,500 miles.
Full service-parts list: Caterpillar 3406 →
Source: Caterpillar 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.