Hope this helps someone else do not waste your time and money on one of these.I had 2 of these fail each in less then 1 month they short out for some reason.I am now going with a zero start 1 1/2" and am expecting it to last a lot longer then 2 weeks.Currently 15 degrees N.W. In.

I've bought a couple of Zerostart's on Ebay for about $15 and they're both continuing to work well after about 5 yrs of use.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13