Should I Replace OEM Transmission Cooler or Run It with Supplemental Cooler
Updated 03/19/2026 | Published 03/10/2026
Question:
Hi, I would like to know if I can run a aftermarket transmission cooler and bypass the factory cooler? Or should I run the factory inline with a aftermarket transmission cooler? The SUV is a 2004 Acura MDX Touring....Thanks.
asked by: Ricky P
Expert Reply:
Hey Ricky, to maximize the cooling of your transmission fluid it is best to run both the factory cooler and the auxiliary cooler at same time with the OEM cooler feeding into the aftermarket cooler like the part # D13504. Now with that said if your OEM cooler is broken or has a leak you can bypass it altogether with a cooler like this Derale. Is your OEM cooler still working?
Product Page this Question was Asked From
Derale Series 8000 Plate-Fin Transmission Cooler Kit w/Barb Inlets - Class IV - Efficient
- Transmission Coolers
- Plate-Fin Cooler
- Full-Size Truck
- SUV
- Standard Mount
- 11W x 12T x 7/8D Inch
- With 11/32 Inch Hose Barb Inlets
- Derale
more information >
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Ricky
3/19/2026
Yes, The oem cooler still works. What auxiliary cooler would you recommend for a 04 Acura MDX? Thank you.