FLEECE FPE-CLNTBYPS-HS-12V-BLK 39.50 INCH 12 VALVE CUMMINS COOLANT BYPASS HOSE BLACK NYLON BRAIDED

Take control of your engine’s cooling performance with the FLEECE FPE-CLNTBYPS-HS-12V-BLK, a premium 39.50-inch black nylon braided coolant bypass hose engineered specifically for the 1994-1998 Dodge 5.9L 12 Valve Cummins. This hose is built to deliver durable style and serious performance under high heat and heavy duty conditions. Fleece coolant bypass hose 12 Valve Cummins, 39.5 inch bypass hose, nylon braided Cummins cooling upgrade, Fleece Performance Engineering bypass line, CPP Diesel Fleece bypass hose

Why upgrade your coolant bypass hose?

• High-quality black nylon braided construction resists abrasion, heat and fatigue.
• Exact 39.50-inch length fitment for 1994-1998 12 Valve Cummins – no guesswork.
• Optimizes coolant routing for better circulation and cooler engine temps under load.
• Lightweight and stylish with performance quality you can trust from Fleece Performance Engineering.

Fitment

Vehicles: 1994–1998 Dodge Ram 2500 / Ram 3500 equipped with the 5.9L 12 Valve Cummins engine.
Hose Length: 39.50 inch black nylon braided bypass hose.
Application: Designed to replace OEM bypass hose and improve durability & coolant flow in high-performance or heavy‐duty use. :contentReference[oaicite:0]{index=0}

Cross-Reference / Related Fleece Items (CPP Diesel)

• FLEECE FPE-CLNTBYPS-HS-12V-SS (39.50 inch 12 Valve Cummins bypass hose – stainless braided)
• FLEECE FPE-CLNTBYPS-HS-CRVP-BLK (Common Rail/VP44 Cummins bypass hose – black nylon braided)
• FLEECE FPE-CLNTBYPS-CUMMINS-12V (Full Bypass Kit – 12 Valve Cummins)

The bypass hose provides a dedicated coolant route around the thermostat and through the engine block, ensuring even temperature distribution. In high-performance or towing applications the standard hose may become soft, swell, or collapse — this Fleece hose upgrades that critical link.

No — it’s ideal for stock or modified applications. Because it’s built from braided nylon with a high-temperature rating, it handles higher flow, higher temps, and more demanding conditions than many OEM replacements.

Yes — this hose uses direct-fit length and ends; if your original fittings are in good shape, they can be reused. Always inspect for wear, leaks, and condition during replacement.

California Proposition 65 warning applies — see table below for details.

Specifications for FLEECE FPE-CLNTBYPS-HS-12V-BLK