Q Catcher Posted March 5, 2018 Share Posted March 5, 2018 Does anyone know what the thread size is on the standard oil pressure sender used on K-Series engines? It's a 2002 1.8 VVC. I'm talking about the thread that is tapped into the front (lower) part of the oil filter housing. It looks like M12, but is it imperial, by any chance? (I recall that my original sump plug was imperial, but the plug thread in my replacement sump is metric. Oh the joy.) I notice that oil pressure gauges are sold with 1/8 NPT fittings. Is this supposed to fit my filter housing? (And also that if I Google 1/8NPT I get more than one answer as to the metric equivalent. Eh?)Also, does anyone happen to know what the thread is that is on the upper face of the oil filter housing, that has a blanking Allen 'grub screw' in it - the one you can use to attach an oil temperature sender.Thanks Link to comment Share on other sites More sharing options...
SM25T Posted March 5, 2018 Share Posted March 5, 2018 The oil pressure sender thread will be M12 .... same as my 2002 VVC. Earlier k-series were M10. You can get a male M12 to 1/8" NPT adaptor. Link to comment Share on other sites More sharing options...
Q Catcher Posted March 5, 2018 Author Share Posted March 5, 2018 Thank you Link to comment Share on other sites More sharing options...
SM25T Posted March 5, 2018 Share Posted March 5, 2018 You might find you get a male/male adaptor then need a 1/8"NPT barrel nipple (female/female) to screw your male gauge tube fitting to ? Link to comment Share on other sites More sharing options...
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