Cooling, external engine oil cooler, heavy-duty air-to-oil, integral to driver side of radiator tank
Cooling, internal transmission oil cooler, water-to-oil, integral to driver side of radiator tank (Included and only available with (MT1) Transmission, 4-speed automatic, heavy-duty. - Included and only available with (MW7) Transmission, Allison 1000 6-speed automatic)
Cooling, external transmission oil cooler, auxiliary, heavy-duty air-to-oil (Included and only available with (MT1) Transmission, 4-speed automatic, heavy-duty or (MW7) Transmission, Allison 1000 6-speed automatic)
Transfer case, electronic shift, includes push-button controls (Requires 4WD Models. - Requires (MT1) Transmission, 4-speed automatic, heavy-duty or (MW7) Transmission, Allison 1000 6-speed automatic.)