Fleece Performance Heavy Duty Transmission Cooler Lines for 2015-2016 GM 2500/3500 HD (5/8" ID) FPE-TL-LML-1516

Fits select 2015-2016 Chevrolet Silverado and GMC Sierra 2500/3500 HD pickup trucks equipped with the 6.6L Duramax LML engine (excluding Cab and Chassis models).

Replace leaking or restrictive factory transmission lines with this Fleece Performance Heavy Duty Transmission Cooler Line Kit. Designed specifically for the LML platform, this kit addresses the common failure points of OE crimped lines while increasing cooling capacity. The 5/8-inch internal diameter hoses provide superior fluid flow compared to stock components, helping to manage transmission temperatures during heavy towing or high-performance use.

Built for maximum durability, each hose is encased in an explosion-proof polyester protection sleeve to guard against abrasion and engine bay heat. This comprehensive kit transitions from factory ports to secure AN fittings using 7/8"-14 O-ring to -10AN adapters, ensuring a reliable, leak-free seal that outperforms the original equipment.

• Increased Flow: 5/8" ID hoses offer a significant diameter increase over stock lines for improved fluid volume.
• Heavy-Duty Construction: Features explosion-proof polyester hose wrap for superior protection.
• Complete Installation Kit: Includes all necessary fittings and hardware to replace the full line set.
• Technical Note: Specifically designed for standard pickup models; not compatible with Cab and Chassis applications.

Kit Includes:

• (3) 5/8" ID Transmission lines with AN fittings
• (6) 7/8"-14 O-ring to -10AN fittings
• (2) Large OD washers
• Double hose clamps, locking cable ties, and fir tree cable clamps