Posted by Paul(in NY) [12.64.140.70] on Monday, April 27, 2015 at 09:04:36 :
In Reply to: cummins 4bt cooling questions posted by Bruce in BC [24.207.105.85] on Sunday, April 26, 2015 at 22:42:26 :
I out my temp sensor on the water inlet elbow, which has a tapped port. I use NAPA FS120 sensor....on at 200, off at 173. Also use a NAPA Relay # 448405, 12v at 30 amps. I also wire in a manual override switch so I can control the fan if I choose. My fans hardly ever turn on, usually only on a long hard trail ride going very slow or in heavy traffic just creep and stop. Never had a relay burn or fail. The Electric Fan is a 16 inch sold by advantage auto parts on all my trucks.
Paul