Oil Filter Housing O-Ring Replacement - Part Numbers and Cross-Compatibility

Enginebeginner✓ Community Verified

Problem

The O-ring on the oil filter housing/bracket assembly deteriorates over time, causing oil leaks from the filter mounting area.

Oil leak at or around the oil filter housing/bracket assemblyOil seepage near the oil filter mounting bolt area

Root Cause

Degraded or failed O-ring gasket on the oil filter bracket assembly, common on 35+ year old parts with original seals

Confidence

Moderate confidence — Multiple community members agreed on this solution

View Original Thread →Posted July 2025 on SupraForums.com