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Shop/Category/Fig. 3 — OIL PUMP RELEASE VALVE AND OIL FILTER/Joint washer (cap to body)
Joint washer (cap to body)
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Also known asE9738
DiagramFig. 3 — OIL PUMP RELEASE VALVE AND OIL FILTER · ref 6
Subsystemengine bottom
Listed in parts books1969–1970

Joint washer (cap to body)

Joint washer sealing the cap to body on the oil pump release valve and oil filter assembly.

PN · 70-9738

This is the joint washer that seats between the cap and body on the oil pump release valve and filter assembly. It's a small sealing piece, but it's the thing that keeps oil where it belongs when the cap is torqued down over the release valve components.

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Catalog records place it in the OIL PUMP RELEASE VALVE AND OIL FILTER figure, with appearances tied to 1969-1970. The legacy E9738 number is the same physical washer under the older prefix style, so if your parts book lists it that way, you're looking at the right item.

It's cheap insurance to have one on hand when you're servicing the release valve or filter housing, since these gaskets tend to get reused past their prime or torn on removal. Confirm fitment against your own oil pump housing before ordering, since our record here is limited to the figure and year span noted.

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Related parts
Cap
PN 70-6596 · Goes with this
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Body
PN 70-7590 · Goes with this
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Filter seal
PN 70-8779 · Usually replaced with this
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Cover
PN 70-6525 · Goes with this
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OIL FILTER CAP
PN 71-1270 · Goes with this
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O-RING,OIL PUMP-3CYL
PN 70-6570 · Usually replaced with this
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