COVID-19 Update: We’re taking all known precautions to safeguard our employees and customers as we continue to operate and process your shipments.

Radiator for 1994 - 1997 6.5L Diesel GM P-Chassis Stepvans

Part Number: 80-833

Price: $384.23

Clearance Options Available! To view more information and images of the clearance version, please click here.

We have 1 discounted part(s) available. Please note that Clearance items are not returnable!


Clearance Price: $310.00

New/Unused: In Stock, Ready to Ship!

Radiator for GM P-Chassis Stepvans

  • This popular radiator is a direct replacement for the 6.5 liter 1994 to 1997 Workhorse chassis. The 1-3/4 inlet and outlet are located top left bottom right. The outlet for the surge tank is in the upper right corner. It includes the engine oil cooler and transmission oil cooer line connections, petcock valve and heater return line connection.
  • It is the only aftermarket radiator that has the correct OEM 1-1/2 centered core with high efficiency tubes and fins. This quality replacement allows it to fit perfectly into the slot it was intended to without modifications. It also has the correct 7 plate transmission cooler and 6 plate engine oil cooler.
  • We provide a kit to convert this radiator to easily fit quick disconnect or O-ring style transmission and engine oil cooler lines. Our 8-piece kit allows this radiator to work with the O-ring style fittings or quick disconnect fittings that were used from 1994-1997
  • On the transmission side of the oil cooler it has a 3/8” threaded inverted flare and when used with our kit it will convert it to a 5/16” inverted flare or the quick disconnect. The Engine oil cooler thread size is 20x1.5mm or 13/16”. Our fitting will convert it to either a 3/4 threaded O-ring or quick disconnect fittings.


  • 1994 - 1997 6.5L Diesel GM P-Chassis Stepvans
  • 1989 - 1994 6.2L Diesel GM P-Chassis but does not have the low coolant sensor


  • Core dimensions: 34-1/4” wide x 19-1/4” high
  • Overall radiator width: 40-5/8”
  • Inlet and Outlet tanks: 3"W x 12-1/2"H
  • Radiator hose connections: 1-3/4”
  • Engine Oil Cooler lines: 11.5” centers with a thread size of 20 x 1.5mm
  • Transmission lines: 11.5” centers with a threaded size of 3/8” with an inverted flare

For a radiator insulator order number 80-724

Estimated Shipping Dimensions: 43" x 27" x 10"

Weight: 27.48 lbs


Mill Supply has been the #1 supplier of step van parts for over 30 years. If you have a Workhorse, Utilimaster, Grumman, Morgan Olson, Supreme, International or other type of walk-in van you have landed on the right page. You will not find a more complete listing of parts for stepvans anywhere! With research and development on-the-go, new products are constantly being added to keep up with the growing industry. You can count on great customer service, fast shipping, and discount prices when you shop with us. It doesn't matter if you use your truck on-the-job, for deliveries, or run a food truck, you can count on Mill Supply to keep your vehicle in top shape. We distrubute parts for Todco, Whiting, Velvac, Northern and Kason. If you have any questions don't hesitate to either contact us via email or give us a call at 800-888-5072 between 8:00 a.m. - 5:00 p.m. E.S.T. and one of our experienced representatives will be happy to help you.



VIDEOS, UPDATES, AND MORE! @millsupplyinc

Mon-Fri 8AM - 5PM EDT
Copyright ©2020 Mill Supply, Inc.
Mill Supply, Inc. 19801 Miles Rd. Cleveland, OH 44128

Mill Supply uses cookies to give you the best shopping experience. If you continue browsing, you agree to the use of cookies.