Fleece Performance 89-98 Dodge 2500/3500 5.9L 12V Cummins Replacement Heater Core Line Kit
SKU: 76887804013

Fleece Performance 89-98 Dodge 2500/3500 5.9L 12V Cummins Replacement Heater Core Line Kit

Sale price$175.39 Regular price$194.88
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Fleece Performance 89-98 Dodge 2500/3500 5.9L 12V Cummins Replacement Heater Core Line KitReplace your leaking or corroded heater tubes with our upgraded stainless steel tubes and high temperature silicone hose kit from Fleece Performance. 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. Kit includes: Stainless steel heater tube replaces Cummins 3912086 Stainless steel heater tube replaces

Replace your leaking or corroded heater tubes with our upgraded stainless steel tubes and high temperature silicone hose kit from Fleece Performance. 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. 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 ?" 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.

Installation Instructions
Warranty

This Part Fits:

Year Make Model Submodel
1989-1993 Dodge D250 Base
1989-1993 Dodge D350 Base
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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SKU: 76887804013

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ShawNae
Battle Creek, US
★★★★★ 4
Heel girly
Size: 8, Color: Burgundy Patent, Size: 8, Color: Burgundy Patent
The bottom is very slippery and you need cushions to go at the bottom of them. You have to be a real heel girly to walk in them, slightly comfortable.
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Reviewed in the United States on February 13, 2026
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Christina
Massapequa, US
★★★★★ 5
Painful
These shoes are very cute but don’t plan on walking in them.
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Reviewed in the United States on December 18, 2025
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Shae
Belleville, US
★★★★★ 3
Color is true bronze runs small
Size: 7, Color: Bronze, Size: 7, Color: Bronze
Love color love style. Run extremely small and narrow and that’s saying a lot because I have small narrow feet. Had stuff on bottom of shoe as if it’s been worn
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Reviewed in the United States on March 5, 2026
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The Luxe Edit
Natrona Heights, US
★★★★★ 5
Small but comfortable.
1/2 size up. Small but comfortable.
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Reviewed in the United States on November 12, 2025
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Farah Pigniat
Grantham, US
★★★★★ 4
Very sexy
Size: 9, Color: Bronze
Very nice sandals, but a little too tight around the toe areas.
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Reviewed in the United States on June 8, 2026

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