| Also known as | E8779 |
| Diagram | Fig. 3 — OIL PUMP RELEASE VALVE AND OIL FILTER · ref 25 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1974 |
Filter seal
A small sealing ring used with the oil pump release valve and oil filter assembly on the unit-construction Triumph engine.
This is the seal that sits with the oil filter assembly on the unit-construction Triumph engine, per the parts book figure covering the oil pump release valve and oil filter. It's a small sealing ring, and its job is to keep oil where it belongs as it moves through the filter housing rather than leaking out around the fitting. If you're pulling the filter for cleaning or replacement, this is the kind of part worth having on hand since it's easy to overlook a worn one when everything else looks fine.
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The catalog also lists this under the older E8779 form, so if your parts book or an older invoice shows that number, it's the same physical piece as 70-8779. Catalog appearances for this seal run from 1969 to 1974, which tells you it was in the mix across several seasons of production, though we don't have the catalog data to pin it to a specific model beyond that.
If you're not sure whether this is the seal your filter housing takes, bring in the old one or give us a call and we'll sort out fitment before you order.
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