Fleece Performance FPE-TL-L5P-1719 Heavy Duty Transmission Cooler Lines 2017-2019 GM Duramax L5P

Replace your leaking factory transmission lines with Fleece Performance's heavy-duty, high-flow flexible transmission cooler line kit designed specifically for 2017-2019 GM 2500/3500 trucks equipped with the L5P Duramax engine. This is the most complete replacement transmission line kit available for your L5P truck, featuring upgraded components that improve both durability and performance.

Engineered with an increased 5/8-inch inner diameter compared to the restrictive stock lines, these heavy-duty transmission lines provide improved fluid flow for better cooling efficiency. The explosion-proof polyester hose protection sleeve guards against abrasion, heat, and environmental damage, ensuring long-term reliability even in demanding conditions.

Complete Kit Includes:

• (3) 5/8-inch ID transmission lines with AN fittings pre-installed
• (6) 7/8-inch-14 O-ring to -10AN adapter fittings
• (2) Large OD washers for secure mounting
• Double hose clamps for leak-proof connections
• Locking cable ties and fir tree cable clamps for secure routing

Key Features:

• Larger 5/8-inch inside diameter for increased flow over stock lines
• Explosion-proof polyester hose protection sleeve prevents damage
• Heavy-duty AN fittings for reliable, leak-free connections
• Complete hardware included for direct installation
• Flexible hose design simplifies installation and routing

Application Notes:

• Fits 2017-2019 GM 2500/3500 trucks with L5P Duramax diesel engine
• Not compatible with Cab and Chassis applications