2004-2005 Duramax Allison 1000 Internal Wire Harness W/ G Solenoid (20702)

Fits

This is a Genuine Allison replacement internal wiring harness. Ideal for the  2004.5-2005 LLY models with 5-speed Allison with G solenoid. 

Part Number: 20702 

• Genuine Allison Replacement
• Factory Fit & Finish
• High-Quality Materials

• Must verify solenoid count in valve body before ordering.
• This harness is for trucks equipped with 7 solenoids in the valve body. The 7th solenoid is also known as the G Solenoid. 

Will the 04-05 internal harness fit my 01-03?

Yes, the only difference between the two is the long extra plug (G solenoid), the 01-03 was never tuned for it so the tcm won't even pick up that wire is even there. All you do is tie it up out of the way to be good to go.