Transmission Cooler Recommendation for 2011 Ford F-350 Towing Through Mountains

Question:

Good evening. Im an avid camper and I tow with a 2011 f350 diesel. Ive gone thru the smokeys and blue ridge and watched my trans temp near 230 and oil near 239. Ive since d my egr, installed a straight pipe. Im hoping to lower my temps a little. My question is how hot can I run? Oil Trans Water Any assistance would be greatly appreciated. Thanks

asked by: Jim

Expert Reply:

Any time your transmission fluid is over 200 degrees you are shortening the life of it. At 239 degrees you would really want to install a supplemental cooler to get that temperature down.

I'd go with the larger cooler part # D13504 which measures 11" Wide x 12" tall x 7/8" deep based on your application.

expert reply by: Jameson C