Workhorse Group, Inc. 15022084 Transmission Oil Cooler

The Workhorse 15022084 Transmission Oil Cooler is an external auxiliary cooling assembly designed to regulate transmission fluid temperature in Workhorse drivetrain systems. Built with a steel, corrosion-resistant housing in black, it uses a 36-row cooler core (11" x 8-3/8" x 1-1/2") and an overall footprint of 20" x 10-1/2", with 3/8-18 NPT quick-connect inlet and outlet ports. Compatible with Workhorse W-series chassis including W42, W20, W21, W22, W24, W25, W62, and P30/P32 models (approximately 2005–2010, depending on chassis), it supports commercial vehicle drivetrain cooling for step vans, motorhomes, delivery trucks, RVs, and fleet vehicles requiring auxiliary cooling during heavy-duty operation. Mounting hardware is not included; cross references include Dorman 918-5602, Dayton 918-5602, and GM 15022084, and the unit is branded Workhorse with ACDelco compatibility for replacement maintenance and transmission cooling upgrades in fleets and service facilities.