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Re: What size are the HPOP fitting internal o-rings on a 7.3 PSD
Posted to HD/Fleet Forum on 4/4/2018 3 Replies

Did you replace the O-rings on the outside of the fittings or the ones on the inside? I am pretty sure IH or maybe even Ford for sells a kit with the Teflon washer & O-ring. Those fitting are Parker STC [...] [[...]] Login to read more.

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