Gates 25254 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Flexible coolant hose for OE-style replacement

Gates 25254 is a Flexible Coolant Hose (Standard) built for radiator cooling system service where a formed hose is difficult to source or route. Its flexible construction helps replicate the angles and planes of many OE coolant hose layouts, making it a practical replacement for select Ford, Toyota, Volvo, Mercedes-Benz, Nissan, Mitsubishi, Buick, Chevrolet, GMC, and Mercury applications.

For buyers searching for a Gates 25254 radiator coolant hose for a 1996-1997 Toyota RAV4 upper hose or a 1989-1993 Ford Thunderbird upper hose, this part is designed to match the listed application and hose dimensions.

Key features

• Brand: Gates
• Part number: 25254
• Flexible Coolant Hose (Standard) for radiator cooling system service
• Material: EPDM with steel reinforcement
• End 1 inside diameter: 1.25 in. (32 mm)
• End 2 inside diameter: 1.25 in. (32 mm)
• Centerline length: 18.5 in. (470 mm)
• Non-molded design for flexible routing
• Improved sealing surface for stronger leak resistance

Product details

Gates Vulco-Flex II hose construction is engineered to bend in nearly any direction, which helps it serve as a direct-style replacement where a rigid molded hose is not practical. The EPDM and steel construction supports durability in coolant service, while the improved sealing surface is intended to help maintain a tighter connection at the hose ends. This makes Gates 25254 a useful option for radiator coolant hose replacement on vehicles such as the Toyota RAV4, Ford Thunderbird, and Volvo 740 when the listed fitment matches the original routing.

This part cross-references Gates 31613 for the same application.

Common issues this hose can address

• Cracked or split upper or lower radiator hose
• Coolant leaks at worn hose connections
• Hard-to-source OE hose routing on older vehicles
• Improper hose angle or alignment during cooling system repair
• Replacement needs for flexible radiator hose applications on Ford, Toyota, and Volvo models

Installation notes and tips

• Verify end diameters and centerline length before installation: 1.25 in. ends and 18.5 in. centerline length.
• Confirm the listed position for your vehicle, including upper, lower, or lower pipe-to-radiator applications.
• Inspect hose necks, clamps, and mating surfaces for corrosion or damage before assembly.
• Route the hose without kinks or sharp bends so coolant flow is not restricted.
• Use the vehicle-specific fitment listing for exact year, make, model, and position matching.

Quality assurance

Gates designs the Vulco-Flex II line for flexible routing and improved sealing performance in coolant service. Part number 25254 is built as a standard flexible radiator coolant hose for listed OE-style replacement applications.