Product Description

2006 Duramax equipped vehicles, LLY VIN code 2 (8th digit is “2”).  Choose from refurbished A-Grade or B-Grade, as well as factory NEW.  Note, B-grade is cosmetically flawed and may have a cracked or chipped receptacle that will not affect durability or function.  All grades include applicable warranty when ordered with factory programming (add to cart separately).

GM Service Numbers 12606126, 12606127, 12603623, 12604137, 19260753, 12588335  are interchangeable.

O6 LLY/LBZ NOTE:  The lower power rated 06 LLY preceded the 06 LBZ emission certification.  The 06 LBZ engine included programming that is more refined and adds 30 HP and 60 ft-lb torque.  The upgraded “Factory LBZ programming” is an available option in the drop down menu as a low cost upgrade to the factory program file.  IMPORTANT:  YOU MUST PURCHASE FACTORY PROGRAMMING to take advantage of this discounted +30HP LBZ upgrade offer.