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Choose your Engine for your 1966 GMC L3500

6 Cyl 5.0L 6 Cyl 5.7L

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1966 GMC L3500 Transmission Oil Pan Derale

Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
Vehicles with Turbo 400 transmissions
Product Attributes:
- Tube depth: 2
- Temp bung size: 1/8 Npt
- Pan depth: 2-7/8
Features:
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
Derale's TH400 Transmission Cooling Pan #14201 uses air passing beneath the vehicle and redirects it to help lower transmission oil temperatures. With brazed, turbulator-equipped airway tubes passing through the lower section of the transmission pan for more efficient cooling, each is individually pressure tested to ensure a leak-free pan. We've included a much stronger magnetic drain plug and rubber/steel reusable washer, in addition to a 1/8" NPT temperature sender bung located in the side of the pan. Finished with a durable black two-stage coating, each pan also includes neoprene gasket and 1/8" NPT temperature sender plug.

Additional Fitment Information:

Vehicle	Transmission
1966 - GMC L3500	Automatic

4 In Stock

Limited-Time Offer

$565.64 USD

$678.77 USD

17 Row Series 9000 Plate & Fin Transmission Cooler Kit, 1/2" NPT
17 Row Cooler
17 Row Series 9000 Plate & Fin Transmission Cooler Kit, 1/2" NPT
9000 Series Plate and Fin Transmission Cooler Kit
Product Attributes:
- BTU: 23500
- Inlet dim: 8-1/2
- GVW: 24000
- Mounting: 6-11/16 X 9-13/16
- Depth: 1-1/4
Features:
- 17 Row Series 9000 Plate & Fin Transmission Cooler Kit, 1/2" NPT
Very popular with original equipment manufacturers for use on their towing applications, our Plate and Fin coolers is no exception, featuring strong furnace-brazed construction, 1 1/4" wide plates and embossed turbulators which maximize heat transfer while also minimizing pressure drop. This unit is perfect for light to medium duty use and occasional towing. It greatly extends transmission life by preventing heat-related transmission failures, and improve shifting performance. Built with 1/2" NPT female cooler ports and includes 1/2" NPT x 3/8" hose barb adapters. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16" transmission cooler lines.