Allison 5 Speed A Trim Solenoid, Duramax | 2001 - 2005

***DISCONTINUED***Fits 2001-2005 Allison Transmissions. The valve body on your Allison transmission contains several solenoids that work together to ensure proper operation of your transmission. If one or more have failed with age or have physical damage you will most likely experience shifting concerns and DTC codes may be present.