Most Popular Fleece Performance Replacement Heater Core Line Kit For 12-valve Cummins Complete Set [4ArtzCgq]

Fleece Performance Heater Core Line Kit for 12-valve Cummins

Experience the superior quality and durability of the Most Popular Fleece Performance Replacement Heater Core Line Kit For 12-valve Cummins Complete Set [4ArtzCgq]. This comprehensive kit is designed to provide a direct replacement for your leaking or corroded heater tubes, ensuring optimal heating performance in your vehicle. With its high-quality stainless steel tubes and high-temperature silicone hose kit, this kit is a perfect fit for all trucks originally equipped with air conditioning.

Kit Components and Specifications

The Fleece Performance Heater Core Line Kit includes all the necessary components for a seamless installation. It comes with stainless steel heater tubes that replace Cummins parts 3912086 and 3912087, ensuring compatibility and a perfect fit. The kit also includes silicone heater hoses that replace Cummins parts 3931522 and 3957649, as well as 45-degree tubes for the firewall. To secure the hoses and tubes, the kit includes anodized billet aluminum hold down clamps, billet aluminum standoffs, and mounting hardware for both stock and aftermarket manifolds. Additionally, the kit provides hose clamps for added safety and reliability.

Practical Uses and Application Notes

This heater core line kit is an excellent choice for those looking to upgrade their 12-valve Cummins truck's heating system. It is intended for use with trucks originally equipped with air conditioning. For trucks without air conditioning, you will need to supply your own ⅝” ID hose to connect the firewall ports to the stainless steel heater lines. The silicone heater hose may require trimming for certain applications or to accommodate modifications. If your truck has an aftermarket exhaust manifold, the kit includes an additional mounting bracket for the rear heater line standoff. With this kit, you can enjoy improved heating performance, reliability, and peace of mind.