6.6 Duramax

 (Pictured 2015 Chevy 2500 hd High Country)

The 6.6L Duramax Diesel engine can be found in both Gmc and Chevy trucks. The 6.6 diesels was introduced in 2001 and duramax has put out 5 variations of the engine since its launch in 2001.
The five engines are as follows

-6.6L Duramax LB7 Available 2001-2004
-6.6L Duramax LLY Available 2004-2006
-6.6L Duramax LBZ Available 2006-2007
-6.6L Duramax LMM Available 2007.5-2010
-6.6L Duramax LML Available 2011- Current

A Big part in the Success of Chevy and Gmc's Duramax engines is the pairing of the Allison 1000 transmission. It has been the only transmission used since 2001 and although it was offered in manual 6 speed but was phased out in the year 2007. this was only due to the transmissions popularity and the need was no there to produce a manual. All of the 6.6 duramax's are V8's, and as of 2007 both the LMM and the LML are post emissions meaning that they run cleaner and are equiped with a DOC, DEF injector, DPF as well as others.

Duramax Puts out A 6.6L V8 LGH motor which can be found in cab and chassis, or commonly known as dump trucks, box trucks, and other utilities. All of these engines can be found in Chevy and Gmc 2500, 3500 hd, as well as c4500 and c5500