Transmission Oil Cooler 01-05 GM 6.6L Duramax X-TRA Cool XD309 XDP 6.7 Turbo while also reducing the noise/vibration/harshness

while also reducing the noise/vibration/harshness (NVH) and increasing accessory drive component life

Supports Up To 750HP

7L Powerstroke by replacing the intercooler pipe with the XDP 6

XDP's HD Gear Reduction Starters feature a faster motor that draws less amperage

The heavy duty crimp helps eliminate tank and core separation failures that many experience with the factory radiator

Transmission Oil Cooler 01-05 GM 6.6L Duramax X-TRA Cool XD309 XDP 6.7 Turbo while also reducing the noise/vibration/harshnessThe XDP X TRA Cool Direct Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001 2005 GM 6. 6L Duramax LB7 LLY. XDPs XTRA Cool Transmission Oil Coolers are made using techniques borrowed from the HD and semi truck industry to provide you with the ultimate in strength and durability. Built for more than just increased strength, the XD309 Features a high efficiency core that is specially designed to