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Old 02-19-2018, 03:27 PM   #1
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Oil sensor for an Onan apparently hard to find or non existant

My general maintenance RV guy is having problems finding just the oil sensor for what he says is a fantastic perfect for my needs genny. He has even contacted on Onan itself on which it is back ordered
and pawed through random mechanic pals' junk parts boxes to no avail.
Other than that, my gal is ready for some new sneakers and the tag and we can go on a trial trip somewhere. One full year from her purchase last February.
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Old 02-19-2018, 04:09 PM   #2
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Have you (or your mechanic) taken the old oil sensor and laid it on the counter of a good auto parts store? I find it hard to believe that Onan (Cummins) had a unique sensor made for your model generator. A good counter person should be able to find one that will substitute for your old faulty one.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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Old 02-19-2018, 06:01 PM   #3
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Try these guys: Generator Parts, Generac, Onan, Kohler, Hotstart, Dynagen, Dinosaur, Newage, Leroy, Basler
George Schweikle Lexington, KY
2005 Safari (Monaco)Trek 28RB2, Workhorse W20, 8.1, Allison 1000 5 spd, UltraPower engine & tranny, Track bars & sway bars, KONI FSD, FMCA 190830, Safari Int'l. chapter. 1999 Safari Trek 2830, 1995 Safari Trek 2430, 1983 Winnebago Chieftain, 1976 Midas Mini
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Old 02-20-2018, 03:47 PM   #4
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If it is one of the pressure lube Onans (it has a oil filter), then the LOP switch is available at any auto parts store. Just get any one that fits in the hole and has the same connection.

If it does not have an oil filter, good luck, then it is not a pressure senor, but a liquid level switch. Most of those are only used in little engines and not many of them. It is, however, common to Onans over many years of production.

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Old 02-21-2018, 08:59 AM   #5
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I will let him know. Can't wait to let him know in fact.
I showed him one off Amazon but he never called back to tell me if it was right and I am going quite tired of being starting things they do not finish.
Yesterdays spring turns changed back into sleet, freeze and a 25% drop in temps in 2 and a half hours but when I had previously spoken to him on Monday to let him know not to plan to come check the a/c and a couple other dinky things, he made it sound like he has literally combed the heavens and earth.
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Old 02-21-2018, 05:21 PM   #6
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what size genny is it and model I find it hard to be leave you can't find the part
1988 gulfstream sunvista 36'
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Old 02-28-2018, 09:27 PM   #7
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Just got him on the phone........he found the part at Frisco's out of St. Petersburg and it should be here any day....
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