2020-2026 GM 6.6L Duramax Heater Outlet Hose

Duramax Outlet Heater Core Supply Hose Kit

Upgrade your GM 6.6L Duramax with the PPE Performance Silicone Outlet Heater Core Supply Hose Kit. It's a direct bolt-on enhancement with no cutting or modifications needed. This kit features durable 5mm-thick 4-ply heat-resistant silicone rubber, ensuring reliability in challenging under hood conditions.

The kit includes premium stainless steel worm-drive clamps for secure installation and long-term resistance to moisture and chemicals.