M602 Diesel tach drive wanted

vecair · Jun 27, 2018

Looking for tach drive for M602 diesel PN; 10A12171 or gear that drives cable. 90 degree Stewart Warner unit of .250:1 ratio. Our drive gear is lost in the field somewhere

Also need new tach cable as well.

Thanks and cheers from Arizona!

TJV · Jul 1, 2018

I have been looking for one for my M5 I found these but have not had the time to compare the exact specs hope this helps you.
My original drive is only missing one of the end covers I may be interested in the leftover parts of your drive to fix mine my email is open
Tachometer drives

vecair · Jul 1, 2018

Yes I also found the Texas company and they can make up just about anything you need. Sadly they quoted me $155.00 for the drive I need. Not going to put that kind of money in one. My Steward Warner 90 degree drive is also missing the end cover adn the gear it covered. I was quoted $110.00 for just the gear! Seems like there are plenty like that as several used tractor parts companies have the drives missing the same parts! May never get it working again.

Cheers and good luck as well!

BMG1 · Jul 2, 2018

About $80 through Summit Racing. Search "Speedometer Adapter Stewart Warner".

vecair · Jul 2, 2018

Speedometer adapters are not the same, speedo adapters are 1:1 ratio whereas tach adapter is .250:1 for the diesel. Hundreds
of different ratios across the board. Speedo adapter is just turning the cable 90 degrees out the the transmission to clear
the sheet metal hump usually. Man I wish it was that simple

The M602 diesel is the only one I have found that requires a
.250 to 1 ratio. They used the same tach for both the gas and diesel and just put the ratio adapter on the diesel.

Thanks for trying tho!

Cheers!

molinegb · Jul 3, 2018

M5 M670 same. Used to change quite regular on diesels.

M602 Diesel tach drive wanted

vecair

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TJV

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vecair

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BMG1

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vecair

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molinegb

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