Your Cart (0)
LLY Duramax Transmission
Maintain or upgrade the transmission system on your 2004.5–2005 LLY Duramax with premium parts engineered for reliability and performance. From Allison automatic transmissions to ZF6 manual transmission components, our selection includes clutches, torque converters, valve bodies, and rebuild kits designed to handle heavy towing and increased power. Trust high-quality transmission parts to ensure smooth shifting and long-lasting durability for your Duramax diesel.

Fits: Duramax 2001-2010

Fits: Duramax 2001-2010

Fits: Duramax 2001-2010

Fits: Duramax 2001-2019

Fits: 2001-2019 Duramax (W/ Allison Deep Filter)

Fits: 2001-2019 Duramax (W/ Allison Shallow Pan Filter)

Fits: Duramax 2001-2010 (Shallow Trans Pan)

Fits: Duramax 2001-2019 Equipped With Allison 1000|2000|2400

Fits: Duramax 2001-2019

Fits: Duramax 2001-2019

Fits: Duramax 2001-2015

Fits: LB7|LLY|LBZ|LMM Duramax (Equipped With Allison 1000) 2001-2010

Fits: Duramax 2001-2016 (With BD-Power Transmission)

Fits: Duramax 2001-2019 (Allison 1000/2000/2400 Series Trans.

Fits: LB7|LLY Duramax 2001-2005

Fits: Universal - 80 Watts, 10 in, 800CFM

Fits: Universal - 20 x 7.5 x .75 (3/8 Fittings)

Fits: Cummins 1994-2016 & GM 2001-2016

Fits: Cummins 1994-2016 & GM 2001-2016

Fits: Universal - 15" X 7.5" X 0.75" (3/8" Fittings)

Fits: Universal

Fits: Universal

Fits: Allison 1000 Transmissions 2001-2019