Over time, the factory heater core tubes on your 1st and 2nd generation 5.9L Cummins can become corroded and start leaking. Coolant leaks can create engine overheating issue that could lead to engine failure. Stop these leaks in their tracks with the Fleece Performance Heater Core Line Kit. This kit is constructed with upgraded stainless-steel tubes and high temperature silicon hose. This kit contains everything you need to replace your heater lines from the block to the firewall. This kit is designed as a direct replacement for all trucks originally equipped with air conditioning.
Specifications
- SkuFPE-CUMM-SSHCL-12V
- ManufacturerFleece Performance Engineering
- MPNFPE-CUMM-SSHCL-12V
KIT INCLUDES:
- Stainless steel heater tube - replaces Cummins 3912086
- Stainless steel heater tube - replaces Cummins 3912087
- Silicone heater hose (straight tube to block) - replaces Cummins 3931522
- Silicone heater hose (90 deg tube to block) - replaces Cummins 3957649
- Silicone heater hoses (45 deg tubes to firewall)
- Anodized billet aluminum hold down clamps, billet aluminum standoff, and mounting hardware for both stock and aftermarket manifolds
- Hose clamps
APPLICATION NOTES:
- This kit is intended for use with trucks originally equipped with air-conditioning. If your truck is not equipped with air conditioning, you will need to supply your own ⅝” ID hose to run from the firewall ports to the stainless steel heater lines.
- The silicone heater hose (tube to firewall) may require trimming for certain applications or to accommodate modifications made previously to the engine.
- If your truck is equipped with an aftermarket exhaust manifold, the rear heater line standoff will not be utilized and an additional mounting bracket is provided in the kit.
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Fleece Replacement Heater Core Line Kit 89-98 Ram 5.9L Cummins 12 Valve
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