GM transmission control module (TCM) 25798264, 25836825, Model A40, Base P/N 29545321.
These are OEM units. Manufactured by Allison
These are brand new TCM'S with 0 mile on them never been put in a car..

Applications:
Avalanche 2007-2007
Escalade 2006-2006 Models 03,43,53 2007-2007
SIERRA 2008-2008
SILVERADO 2006-2006
Suburban 2007-2007
Tahoe 2006-2006
Yukon 2006-2008

$275.00 each

BL Part# A0131