NOS GM Adapter Assembly, Oil Cooler & Filter (Springfield)

NOS GM Adapter Assembly, Oil Cooler & Filter 1

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condition: new

make / manufacturer: GM

model name / number: 326098, 3853870

delivery available

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NOS GM C3 Corvette SBC and BBC Oil Cooler/Filter Adapter Assembly. GM PN 326098 (Gr. 1.840). DISCONTINUED. Cast aluminum. Mounts in place of block mounted oil filter adapter for use with a remote oil cooler and then mount a spin on oil filter below. Uses stock pressure relief system. Has two 1/2 FPT ports at 90 degrees to parallel facing outward for pressure line out and return line. Uses 2 mounting bolts to attach to block. Use GM PN 3951644 (Gr. 1.840) or equivalent 5/16 - 18 x 1 1/4 long hex head bolts. May be used on any Gen 1 engine. Was not boxed (kept in a zip loc bag). Have original GM pick ticket. Stored in a box. Price $275.00.

NOS GM Connector, Oil Filter. GM PN 3853870 (Gr. 1.855). Have 2. Allows spin on oil filter to be used with above adapter. In original GM boxes. Price $65.00/each.

Parts have never been installed or used.

Parts stored in a larger box and kept inside.

Compare prices online by GM NOS PNs only.

Purchased to be used with Earls Oil Cooler and Fittings also Posted on Craigslist.

post id: 7924263154

posted: 2026-03-29 08:00

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NOS GM Adapter Assembly, Oil Cooler & Filter - auto parts - by owner...

NOS GM C3 Corvette SBC and BBC Oil Cooler/Filter Adapter Assembly. GM PN 326098 (Gr. 1.840). DISCONTINUED. Cast aluminum. Mounts in place of block mounted oil filter adapter for use with a remote...