Lmackattack Posted November 19, 2012 Share Posted November 19, 2012 Need a sending unit for my gauges. Here is the oil temp gauge with its part number. Hope soneone can cross refrence it to the correct sending unit for it to read correct. Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/ Share on other sites More sharing options...
Lmackattack Posted January 16, 2020 Author Share Posted January 16, 2020 64MT146 was the sending unit number for reference Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440459 Share on other sites More sharing options...
Lmackattack Posted January 16, 2020 Author Share Posted January 16, 2020 volmack number 25006165 Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440460 Share on other sites More sharing options...
Rob Posted January 16, 2020 Share Posted January 16, 2020 Almost all sensors, or sending units are a varistor by composition. If you have problems obtaining the correct one you can send the gauge to me and I'll use a little test jig I built for the purpose and can get you the values that will make your gauge read within about 2% as the instruments built for the automotive world are not very precise in nature. Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440463 Share on other sites More sharing options...
convoyduel Posted January 16, 2020 Share Posted January 16, 2020 Trent, are you upgrading or having a problem with a current setup? Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440490 Share on other sites More sharing options...
Lmackattack Posted January 16, 2020 Author Share Posted January 16, 2020 still having issues...i installed these gauges in 2012 but never got the right sensing units. mack had sold me one back in 2012 but it was reading incorrect. i just ordered a new sending unit ( part number above) and hope to have it in the oil pan next week to test it. Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440509 Share on other sites More sharing options...
convoyduel Posted January 16, 2020 Share Posted January 16, 2020 See if you can reference a gauge and sending unit from ‘02 RD690S vin 033790. Quote Link to comment https://www.bigmacktrucks.com/topic/28429-part-number-searchhelp/#findComment-440517 Share on other sites More sharing options...
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