✨ Get 20% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Liquidation Sale Fleece Performance Coolant Bypass Kit With Stainless Steel Line For 94-98 5.9l Cummins Pro Version [HxUzA5c9]

$51.99 $166.99 -69%

Cummins Coolant Bypass Kit for 94-98 5.9L Engines The 5.9/6.7L Cummins engines, especially the rear cylinders, often suffer from inadequate coolant flow, leading to higher temperatures and potential system failures. Fleece Performance addresses this

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Cummins Coolant Bypass Kit for 94-98 5.9L Engines

The 5.9/6.7L Cummins engines, especially the rear cylinders, often suffer from inadequate coolant flow, leading to higher temperatures and potential system failures. Fleece Performance addresses this issue with their Coolant Bypass Kit, designed specifically for 94-98 Dodge 5.9L Cummins engines. This comprehensive kit includes a secondary thermostat that maintains consistent temperatures across all six cylinders, preventing excessive pressure build-up and potential blowouts of freeze plugs. By ensuring optimal coolant flow, the kit significantly improves the reliability and longevity of your Cummins engine.

Advanced Features and Specifications

The Fleece Coolant Bypass Kit stands out with its innovative design and robust construction. The kit features braided hoses and AN O-ring fittings for a leak-free installation, ensuring that your engine remains protected. For models year 2003 and later, the kit includes billet hose brackets for added durability. The secondary thermostat operates based on temperature rather than pressure, providing a more reliable solution to the coolant flow problem. This kit is a direct replacement for the original equipment, making installation straightforward and hassle-free.

Practical Benefits and Target Audience

The Fleece Coolant Bypass Kit is an essential upgrade for any 94-98 Dodge 5.9L Cummins owner looking to enhance their engine's performance and longevity. By lowering coolant temperature at the rear cylinders and ensuring consistent temperatures across all cylinders, the kit prevents damaging coolant pressure build-up and blowouts of freeze plugs. This kit is particularly beneficial for those who frequently encounter over-temperature or over-pressure conditions, as it significantly reduces the risk of catastrophic failure. Whether you're a daily driver or a weekend warrior, this kit is a must-have for anyone who values the performance and reliability of their Cummins engine.

What Our Customers Say

January 1, 2026

Absolutely no complaints!

The product is a very good quality buy.

- Reign S..

January 1, 2026

Absolutely no complaints!

This is a product that I will recommend to my friends.

- Hannah P..

January 1, 2026

Absolutely no complaints!

The product is wonderfully made.

- Valentina A..

Write a Review

You Might Also Like

Discover more great products from our collection.

YC Waxing Cabinet

YC Waxing Cabinet

(544)
$54.99 $175.99 -69%
MERSEN GGM1-6/10

MERSEN GGM1-6/10

(290)
$83.99 $268.99 -69%

Copyright 2026 © mappa-mercia.org

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY