(2015) GMC Truck-Sierra Denali 3500 (2011 Up) AT, 6.6L, 4x4, w/o model year break point AT Transmission - <30K miles 3.8 8L Engine (2000-2004) - 120K-150K

8L Engine (2000-2004) - 120K-150K miles

2L Engine (2009) - 30K-60K miles

4L Engine (2002) - 60K-90K miles

7th digit) - Engine (2021) - 60K-90K miles

5L Engine (2010) - 30K-60K miles

(2015) GMC Truck-Sierra Denali 3500 (2011 Up) AT, 6.6L, 4x4, w/o model year break point AT Transmission - <30K miles 3.8 8L Engine (2000-2004) - 120K-150KGMC Truck Sierra Denali 3500 (2011 Up) AT, 6. 6L, 4x4, w o model year break point AT Transmission (2015) <30K miles This used OEM transmission is listed as its own product for the <30K miles option, so the price shown belongs to this exact mileage selection. It is a practical replacement choice for buyers who want an OEM style part without dealer new pricing. Please verify fitment before ordering. Match the year, make, model, engine size, drivetrain,