Fleece Replacement Heater Core Line Kit for 12-valve Cummins (FPE-CUMM-SSHCL-12V) for 1989-1998 Cummins 5.9L
$417.85
The Fleece Performance (FPE-CUMM-SSHCL-12V) Replacement Heater Core Line Kit is a high-performance upgrade for 1989–1998 Dodge Ram trucks with the 5.9L 12-valve Cummins engine. It replaces factory heater core lines with durable stainless steel braided lines and AN-style fittings, enhancing reliability and coolant flow. Designed for easy installation, the kit improves cooling system efficiency and addresses common OEM failure points—ideal for restoration or performance upgrades.
The Fleece Performance (FPE-CUMM-SSHCL-12V) Fleece Replacement Heater Core Line Kit is a high-quality upgrade designed specifically for 1989–1998 Dodge Ram trucks equipped with the 5.9L 12-valve Cummins diesel engine. This kit replaces the factory heater core lines with durable, high-performance components that offer improved reliability and resistance to wear over time. Engineered for a precise fit, the kit features stainless steel braided lines, AN-style fittings, and all necessary hardware for a straightforward installation. Ideal for enthusiasts looking to enhance the longevity and efficiency of their cooling system, the Fleece heater core line kit ensures optimal coolant flow while eliminating common failure points found in the OEM setup. Whether you’re restoring a classic Cummins or upgrading for performance, this kit delivers dependable performance and peace of mind.
| Weight | 6 lbs |
|---|---|
| Dimensions | 34 × 13 × 3 in |
Fitment
- 1989 Dodge Ram D250/D350 5.9L 12V Cummins
- 1990 Dodge Ram D250/D350 5.9L 12V Cummins
- 1991 Dodge Ram D250/D350 5.9L 12V Cummins
- 1992 Dodge Ram D250/D350 5.9L 12V Cummins
- 1993 Dodge Ram D250/D350 5.9L 12V Cummins
- 1994 Dodge Ram 2500/3500 5.9L 12V Cummins
- 1995 Dodge Ram 2500/3500 5.9L 12V Cummins
- 1996 Dodge Ram 2500/3500 5.9L 12V Cummins
- 1997 Dodge Ram 2500/3500 5.9L 12V Cummins
- 1998 Dodge Ram 2500/3500 5.9L 12V Cummins
Features
- 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.
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
