One (1) transmission cooler line fitting for early 2001-2002 Allison transmission converter housing. This fitting will only work on converter housings with ¾” threads in the housing. In 2003 the converter housings and cooler lines changed to bigger ⅞” threads. If you have a 2003 or newer truck you will need P/N 88996645.
Two (2) required per truck.
Two (2) required per truck.
