PLEASE READ ENTIRE LISTING AND HAVE YOUR TCM CIN OR ASSY# READY BEFORE YOU BUY. THANK YOU.

*PCMPERFORMANCE*


This listing is for a NEW Allison TCM to replace your A51 TCM (part number = 29545536) -- programming for your CIN included (see below).  If your old TCM is a different model (not A51) please find correct TCM model among our listings or contact us with your TCM information.

IMPORTANT:  Just because the old/original TCM in your vehicle was an A51 does not mean the only compatible replacement TCM is A51.  The Allison TCM interchange matrix is complex.  Depending on your application, the structure of your calibration, and our inventory, we may send an appropriately programmed A41 instead, or A43, A52, A59, etc.  Our pricing for all A41-A42-A43-A51-A52-A53-A59 Allison TCMs is currently the same.  The TCM you receive (1) is correct new TCM for your vehicle and (2) may or may not be A51.

IMPORTANT:  This TCM requires programming with correct calibration for your vehicle, which is included in this listing:

After purchase please send us an Ebay message with the CIN (like 4C00XYZ0123) or ASSY# (like A5100XYZ) from the original TCM and we will program it.  You need only disconnect battery, install TCM, reconnect battery and drive the vehicle -- no programming or other learn procedures will be required.  The TCM auto-learns.  Any idle instability is transient and will disappear on its own.

PLEASE NOTE:  Until/unless we receive an Ebay message from you with the CIN or ASSY per above, the TCM cannot be programmed TCM and your order will remain unprocessed.  To avoid delays in processing and shipping of your order please send your CIN /ASSY# as soon as possible.

SHIPPING:  FREE UPS Ground.  UPS Next Day Air Saver is also available at checkout for $45 if you need it faster.  The processing time (1-2 business days) does not change.

WARRANTY:  If ECU fails within 30 days of delivery contact us and we will exchange it for a new replacement unit, buyer pays shipping.  All ECUs must be installed by professional automotive technician into the correct, unmodified, application vehicle that it was ordered for.  All ECUs must be returned in same unaltered condition as they are received.  Any alteration to the form or function of the ECU, which includes but is not limited to opening or (re)programming it, voids the warranty. 

This is a part warranty, not an Ebay return policy.  Due to buyers abusing the Ebay return system, we no longer have any return policy and do not accept returns.  We are not a free troubleshooting ECU loaner service -- you cannot install and use our ECU to determine that your problem was something else, and return it because you don't need it anymore.  You are responsible for accurately diagnosing your vehicle's requirements.  Please make certain that you in fact need an ECU before you purchase it -- there are no returns/refunds.


ECM = engine control module
TCM = transmission control module
BCM = body control module
ECU = electronic control unit, including all of the above