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PLEASEREAD ENTIRE LISTING AND HAVE YOUR CIN/ASSY# READY BEFORE YOU BUY.THANK YOU.
*PCMPERFORMANCE*
This listingis fora used/tested, and programmed for your CIN/ASSY#, WTEC3 Allison TCM (transmission control module), part number = one of the following (new 500KB ROM versions): 29561675 29543300 29541227 29541151 29538352 29537291. The TCMs are backwards compatible -- if you have the older WTEC3 (obsolete 250K ROM versions) 29536134 29534937 29528963, it is covered by the TCM in this listing. Buyer must send us message with the CIN or CAL+ASSY # from original TCM after purchase -- PLEASE SEE BELOW.PLEASE NOTE: These are USED units. What does that entail?
(1) Cosmetic condition varies. We try to source better looking units but used is used. Expect typical signs of wear, dirt, surface oxidation, etc, for a used module.
(2) It is POSSIBLE for a used module to be faulty. Beyond establishing that it communicates and does not report bogus hard diagnostic codes, it is IMPOSSIBLE to fully test these controllers on the bench.
Therefore.. if a professional Allison expert has concluded based on diagnostic investigation after installation that the unit may be defective, please send us message within 14 DAYS and we will discuss how to help you. We *do accept a return for refund or send an exchange unit, which one is our discretion, within 14 DAYS ONLY. After 14 days there are no returns. If you select expedited shipping at additional cost, the shipping fees are not refunded.Please do not begin by opening "not-as-described" or "defective item" cases. It is stated clearly in the description that used TCMs may be faulty -- therefore that is in fact manifestly as described and the remedy is also stated in this listing.
Used modules are much cheaper than new but they come with these caveats. New is new, and new is expensive for a reason. New is nice, shiny, cosmetically clean and beautiful, never faulty, works perfectly the 1st time, every time, and keeps working. If these caveats of buying a used unit are unaccepatable, DO NOT BUY USED -- you can buy a NEW unit in our other listing (or elsewhere) but it is considerably more expensive.
IMPORTANT:ThisTCM requiresprogrammingwith correct calibration for your vehicle, which is included in thislisting:
Afterpurchase please send us an message with the CINor ASSY#from the original TCM and we will program it. You need onlydisconnect battery, install TCM, reconnect battery and drive thevehicle -- no programming or other learn procedures will berequired. The TCM auto-learns. Any idle instability istransient and will disappear on its own
