*IF* the hole in my block is original, the thread pattern is 1/8" BSPT (British), not 1/8" NPT (American). They look deceptively similar, but BSPT is 28 TPI while NPT is 27. Adapters are available between the two systems, and between different pipe sizes: http://www.mcmaster.com/asp/DisplCtlgPage.asp?ReqTyp=CATALOG&CtlgPgNbr=21 The other thing you need to watch for is calibration. Most dometic oil pressure senders are calibrated to drive 100 PSI gauges, not 80 PSI. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "supermattthehero" <supermatty@xxxx> wrote: > I had a fun experience this week trying to find an oil pressure > sender replacement locally. On the cross-parts reference, a Volvo > part is listed. So I called a Volvo dealership and asked them to > send me the part, well, they said it was replaced with a newer part > and could overnight it to me for free, so I purchased it for about > $30. It wasn't even close. Wrong size threads, and had a spring > loaded piston on it. So, I would like to warn everyone else that the > part number in the cross reference list is wrong and won't thread > into your block. > > I called up about 4 Volvo dealerships here in Central PA asking for > help, and when I mentioned it was for a PRV-6, the answer was > either "that engine was used in boats," or "i have no idea." I would > have thought Volvo dealership mechanics would have known a thing or > two about the engine??? This was kind of scary, considering I may > need to call one of these places in the future, should my D ever need > some serious engine work. I'll deal with that when it comes I > guess. > > Anyway, I looked back in the backissues and found where Marty Maier > specified the Autozone part, Wells PS-136. I was able to cross > reference this part at NAPA and the price was around $27 with tax. > It looks almost exactly like the original, with the exception that > there is a spade connector at the top instead of a bolt and nut. > > Matt > #1604 > > P.S. Does anyone have any good tips for restoring the black plastic > valences? Mine are a little scratched up.