The Fleece Coolant Bypass VP (FPE-CLNTBYPS-CUMMINS-VP) is a high-quality aftermarket solution designed specifically for the 1998.5–2002 Cummins 5.9L diesel engines. This coolant bypass kit addresses a common weak point in the factory cooling system by improving coolant flow to the rear cylinders, which are often underserved in stock configurations. By providing more balanced coolant distribution, the Fleece coolant bypass helps reduce coolant pressure spikes, stabilize engine temperatures, and prevent potential head gasket failures—especially in high-performance or heavy-duty applications. Built with durability in mind, this kit includes premium fittings and hoses for a reliable and leak-free installation, making it a smart upgrade for Cummins owners looking to enhance the longevity and performance of their engine.
Worldwide
Free Shipping
24 Support
+1 212-334-0212
126.45067SL
$164.03
37-8002
$302.10
Brand:
Fleece Coolant Bypass VP (FPE-CLNTBYPS-CUMMINS-VP) for 1998.5-2002 Cummins 5.9L
$376.95
The Fleece Coolant Bypass VP (FPE-CLNTBYPS-CUMMINS-VP) is an aftermarket kit for 1998.5–2002 Cummins 5.9L diesel engines that improves coolant flow to the rear cylinders—a common weak point in the stock system. It helps reduce pressure spikes, stabilize engine temperatures, and prevent head gasket failures, especially in high-performance or heavy-duty use. Built with durable components, it offers a reliable, leak-free installation and enhances engine longevity and performance.
Professional customer service:
- Free Shipping on orders over $25.00
- No Import Fees Deposit & 15 Days Returns
- Standard Shipping and Express Shipping
Purchase protection:
