The Fleece Coolant Bypass for Automatic Transmissions (FPE-CLNTBYPS-CUMMINS-0305) is a high-performance upgrade designed specifically for 2003–2005 Dodge Ram trucks equipped with the 5.9L Cummins diesel engine. This coolant bypass system helps regulate and balance engine coolant flow, particularly around the rear cylinders, which are prone to higher temperatures and potential head gasket failure in stock configurations. By allowing coolant to circulate more evenly throughout the engine, it reduces thermal stress and improves overall engine reliability and longevity—especially under heavy towing or performance use. Engineered for automatic transmission models, this Fleece Performance product ensures a more consistent cooling system operation and is a smart investment for Cummins owners seeking durability and peace of mind.
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Fleece Coolant Bypass Automatic Transmission (FPE-CLNTBYPS-CUMMINS-0305) for 2003-2005 Cummins 5.9L
$376.95
The Fleece Coolant Bypass (FPE-CLNTBYPS-CUMMINS-0305) is a performance upgrade for 2003–2005 Dodge Ram trucks with 5.9L Cummins diesel engines and automatic transmissions. It improves coolant flow around the rear engine cylinders—areas prone to overheating and head gasket issues in stock setups. By promoting even cooling, it enhances engine reliability and longevity, especially during heavy towing or high-performance use. This upgrade is ideal for Cummins owners seeking better durability and consistent cooling performance.
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| Weight | 5.34 lbs |
|---|---|
| Dimensions | 12.75 × 9.63 × 4.25 in |
| Brand |
