Engines and modifications IV (GMTK2XX) Crew Cab Standard Box

6.6 Duramax TD V8 (445 Hp) SRW Automatic

6.6 Duramax TD V8 (445 Hp) 4WD SRW Automatic

6.6 Duramax TD V8 (397 Hp) SRW Automatic

6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic

6.0 V8 (360 Hp) SRW Automatic

6.0 V8 (360 Hp) 4WD SRW Automatic

6.0 V8 (301 Hp) Automatic CNG

6.0 V8 (301 Hp) 4WD Automatic CNG