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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fleece Replacement Heater Core Line Kit 89-98 Ram 5.9L Cummins 12 ValveOver 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
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.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 715 reviews
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Product Reviews
★★★★★ 5
The quality it’s the best
Best filters ever bought I will buy it again
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Recomendado 10/10
Fácil de instalar y se ve de buena calidad a comparación del que tenía en Valvoline por casi el mismo precio, compré este filtro para mi Civic 2017
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Reviewed in the United States on March 1, 2026
★★★★★ 1
Bad
Horrible air flow I don’t recommend and yes it was installed correctly. Don’t waste your money
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Maintained airflow
Difficult to know how well it’s filtering the air. But it installed correctly and I am still getting good airflow through my vents
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Reviewed in the United States on February 8, 2026
★★★★★ 5
High-Quality Cabin Filter with Carbon Pre-Filter
This filter was easy to install in a 2010 Honda Fit. I wanted a HEPA filter given my severe allergies. The honeycomb carbon side looks similar to my Winix and Air Doctor carbon filters so it felt high quality.
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Reviewed in the United States on August 18, 2025
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