Upgrade the factory transmission cooler in your 2006-2010 GM 6.6L Duramax LBZ/LMM with the XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD310. Manufactured to provide you with the ultimate in strength and durability, XDPs X-TRA Cool Transmission Oil Coolers are made using techniques borrowed from the HD and semi-truck industry.

X-TRA Cool Oil Coolers feature a high-efficiency core to maximize cooling potential for your Allison transmission. Each kit comes ready to install with the brackets, hardware, and necessary fittings to make this a bolt-on installation.
Features:

• Direct-Fit
• Replaces Factory Cooler
• Upgraded Design For Increased Durability
• High-Efficiency Core To Maximize Cooling

XD310 Specifications:

• Core Width: 20 inch
• Core Height: 4-5/8 inch
• Core Thickness: 2 inch
• Overall Length: 23 inch
• Cooler Fittings: 7/8-14 UNF

Application Notes:
This transmission cooler is intended for use with the factory transmission lines.
XDP cannot guarantee fitment with aftermarket transmission lines.
Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit