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Author Topic: Allison 5 speed tcm needed  (Read 197 times)


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Allison 5 speed tcm needed
« on: September 20, 2018, 07:42:42 PM »
I have a 2004 Monaco Cayman with Cummins ISB-300 engine and Allison 2000MH transmission. The controller is fried due to incorrect battery polarity hookup. (No lights on keypad.) Power is getting to both TCM and keypad. I need a replacement TCM. The model is 29537441 and the label says "2800 rpm" and "Throttle J-1989" and "5421-L". I've xhecked with several TCM rebuild places and they say they do not work on these. Can anyone out there advise me as to where I can get a replacement? Thanks.

Robert K

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  • Posts: 298
Re: Allison 5 speed tcm needed
« Reply #1 on: September 21, 2018, 03:25:25 AM »
96 Safari Serengeti
3126 Cat
2011 jeep wrangler
Western New York

Gary RV_Wizard

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Re: Allison 5 speed tcm needed
« Reply #2 on: September 21, 2018, 08:13:42 AM »
Even Ebay has them.

UltraRV Products is another excellent source for anything related to a Workhorse chassis. They have rebuilt TCMs.


Or just Google for other choices:
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL