Gates 25808 Radiator Coolant Hose - Lower or Upper

Flexible OE-Style Coolant Hose Replacement

The Gates Vulco-Flex II radiator coolant hose is built for applications that need a flexible routing solution without the cost of a molded OE hose. Part number 25808 uses an EPDM and steel construction with a reinforced shape that bends in almost any direction while maintaining a reliable sealing surface.

Compatible With a wide range of upper and lower coolant hose applications, this Gates Flexible Coolant Hose (Standard) is a practical replacement for vehicles such as the Jeep Grand Cherokee, Dodge Dakota, and Ford Bronco. The 25808 hose is shaped to replicate complex OE hose angles and planes for straightforward service work.

Key Features

• EPDM and steel construction for durability in cooling system service
• Flexible design routes around tight engine bay layouts
• Improved sealing surface for greater leak resistance
• 90-degree molded configuration for OE-style hose routing
• 1.5 in. / 38 mm inside diameter at both ends
• Centerline length: 25.69 in. / 653 mm
• Designed as a standard radiator coolant hose replacement

Product Details

Gates 25808 is part of the Flexible Coolant Hose (Standard) line, a product family focused on replacing hard-to-source molded hoses with a serviceable flexible alternative. That makes it useful when the original hose follows an unusual bend or offset and a straight hose will not maintain proper routing. This part cross-references Dayco 81491 and FEL-PRO 1036 for the same application.

With its 90-degree molded form and reinforced EPDM/steel construction, this hose is suited for upper and lower radiator hose service across many older domestic vehicles. It is listed for applications including 1993-1998 Jeep Grand Cherokee, 1991-1994 Dodge Dakota, and 1980-1983 Ford Bronco, along with numerous Chevrolet, GMC, Buick, Oldsmobile, and Pontiac models.

Common Problems This Hose Can Address

• Cracked or leaking radiator coolant hose
• Collapsed hose sections caused by age or heat cycling
• Poor fitment when an OE molded hose is no longer available
• Cooling system leaks at hose ends from worn sealing surfaces
• Routing issues in tight engine compartments

Installation Notes and Tips

Verify end diameters, centerline length, and hose routing before installation. This hose is listed for both upper and lower positions depending on the vehicle, so match the exact application notes for your year, make, and model. Confirm clearance around belts, pulleys, fan shrouds, and exhaust components, and inspect clamps and mating surfaces before filling the cooling system.

Quality Assurance

Gates designs the Vulco-Flex II hose to replace expensive OE coolant hoses with a flexible, durable service part that follows the required angles and planes for the application. Part number 25808 is built for direct cooling system service where a standard molded replacement is needed.

Fitment Highlights

• Fits 1993-1998 Jeep Grand Cherokee, upper
• Fits 1991-1994 Dodge Dakota, lower
• Fits 1980-1983 Ford Bronco, upper
• Fits 1975-1979 Chevrolet C10, upper
• Fits 1977-1979 Pontiac Sunbird, upper