Description
This is the ultimate cooler for heavy towing and is a must for heavy duty applications, including racing, towing, and hauling. Heat is what kills an automatic transmission. If you want to extend the life of your transmission and avoid a premature, costly rebuild, this is very cheap insurance. Built to OEM specifications, this cooler is the best choice for your truck, van, RV, or car.

Feature
Plate-style cooler outperforms old tube-and-fin designs in a smaller overall size
Delivers up to 15x less flow restriction
30% more cooling delivers maximum heat transfer
Durable brazed aluminum construction
Self-regulating flow for maximum lube flow protection through cold start-up, varied temperatures and driving conditions, heavy loads and towing

Specification
GVW Rating: 40,000
Number of Plates: 13
Cooling Plate Type: Max Fin and Plate
Cooler Size: 8-1/2" x 22" x 1-1/4"
BTU Rating: 45,000
Cooler Fitting Size: High Flow 3/8" Inverted Flair Hex fittings

Part Number
47391, LPD47391, LPD-4739-1, LPD 47391, OC-4739-1

Fitment
For Ford F250 F350 Expedition & More.
For Chevy Silverado Corvette Avalanche Tahoe Suburban & More.
For GMC Sierra Yukon & More.
For Car, Van, Light Truck, R.V., SUV, and Towing Applications.

Package Included
1x Transmission Cooler
1x Mounting Hardware Set

How It Work
Automatic transmission fluid (ATF) is more viscous when it’s colder. THE Low-Pressure Drop (LPD) Transmission coolers have a unique cold-weather passive bypass that allows the thicker ATF to flow more efficiently through the cooler at the top of the system.
As operating temperatures increase, the ATF heats up and becomes thinner. The COOLER system then directs the ATF through the core, where it is cooled.