The Derale 14201 is a standard-depth transmission cooling pan for the GM TH400. It is stamped from heavy-gauge steel and finished in a two-stage black heat-dissipating coating. Patented turbulator cooling tubes run through the lower section of the pan, routing air passing beneath the vehicle through the fluid to lower transmission oil temperatures by up to 50 degrees F. It also adds fluid capacity for cooler, more stable operation under load.
Verified fitment: GM TH400 transmission.
Specifications:
- Fitment: GM TH400, standard depth
- Material: heavy-gauge stamped steel, two-stage black heat-dissipating finish
- Cooling: patented turbulator cooling tubes, 2" deep; reduces fluid temps up to 50°F
- Added fluid capacity: 1 qt 17 oz
- Drain plug: magnetic, 1/2"-20 thread, reusable washer (replacement Derale 14000)
- Ports: 1/8" NPT temperature sender bung
- Dimensions: 16-1/2" L x 12-13/16" W x 3" H
- Included: neoprene gasket, 1/8" NPT sender plug, magnetic drain plug; uses OEM filter
- Part number: 14201
FAQ
What does the Derale 14201 pan fit?
It is a standard-depth cooling pan for the GM TH400 transmission.
How does it cool the fluid?
Patented turbulator cooling tubes route air passing under the vehicle through the pan, lowering fluid temperatures by up to 50°F.
Does it need a different filter?
No, it uses the OEM filter with no filter extension required.
What is included?
It includes a neoprene gasket, a 1/8" NPT temperature sender plug, and a magnetic drain plug with a reusable washer.

