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ron350 · 07-12-2019, 08:23 PM

OK the o-ring for the dipstick tube, modulator valve and the small spedo housing are the same size.
Rockauto sells these under ATP SO33 and Pioneer #76200110.
.
The Parker o-ring book lists these as size –115 which measures 11/16” ID x 7/8” OD x 3/32” diameter or .674” ID x .103” diameter.

07-12-2019, 08:23 PM	#7
ron350 Registered User Join Date: Apr 2007 Location: Birmingham AL Posts: 250	Re: Turbo 350 dipstick o-ring size? OK the o-ring for the dipstick tube, modulator valve and the small spedo housing are the same size. Rockauto sells these under ATP SO33 and Pioneer #76200110. . The Parker o-ring book lists these as size –115 which measures 11/16” ID x 7/8” OD x 3/32” diameter or .674” ID x .103” diameter. __________________ Stock 75 C10 step side. 350 2 BBL, 350 trans. 150K miles.