The Derale 12903 is a 6 pass, 15 inch Dyno-Cool Series 6000 transmission cooler. Its all-aluminum tube and fin core lowers automatic transmission fluid temperature to help prevent heat-related failures and improve shift quality, and its slim profile mounts in a range of locations. This is a universal cooler for cars and light trucks.
Specifications:
- Type: Dyno-Cool Series 6000 aluminum transmission cooler
- Passes: 6
- Width: 15"
- Core construction: Aluminum tube and aluminum fin
- Cools: Automatic transmission fluid
- Fitment: Universal
- Part number: 12903
FAQ
What is the Derale 12903 cooler?
It is a 6 pass, 15 inch Dyno-Cool Series 6000 all-aluminum transmission cooler.
What does it cool?
It lowers automatic transmission fluid temperature to help prevent heat-related failures.
What is the core made of?
It uses an all-aluminum tube and fin core.
Is it universal?
Yes, it is a universal transmission cooler for cars and light trucks.

