Product Description

2011-2016 Allison 1000 equipped vehicles.  These TCM’s were combined with Duramax diesel and 8.1L Gas engines.  Each has a different shift schedule that need to be programmed at time of purchase or by a competent GM electronics expert.  We provide a warranty only on modules we program.  Refurbished/used A-Grade, B-Grade, or Factory New:  90 day or 12 month warranty (new modules).  Contact us before placing order.  A $299 (Refundable) core charge applies.

GM service number 24256864, 24256861, 25982143, 29546675, 25978353.  This TCM will replace the A50 and T14 TCM in your 2011-16 LD or MD truck