Gates 25302 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Flexible coolant hose for broad OE-style fitment

The Gates 25302 Flexible Coolant Hose is built for radiator and coolant routing where a formed hose is difficult to source or match. Its flexible construction helps replicate the angles and planes of many OE coolant hose layouts, making it a practical replacement for a wide range of older Jeep, Dodge, Ford, Toyota, and Isuzu applications.

Gates Flexible Coolant Hose (Standard) is part of the Vulco-Flex II line, a hose family focused on adaptable routing and reliable sealing at the connection points. For drivers and technicians looking for a Gates 25302 radiator coolant hose replacement, this design supports a faster repair when the original molded hose is no longer available or is costly to replace.

Key features

• Flexible EPDM and steel construction for durable coolant service
• Improved sealing surface for stronger leak resistance at the ends
• End 1 inside diameter: 1.25 in. (32 mm)
• End 2 inside diameter: 1.5 in. (38 mm)
• Centerline length: 15.5 in. (394 mm)
• Non-molded design for routing in multiple directions
• Direct replacement style for many upper and lower radiator hose applications

Product details

This radiator coolant hose is engineered to bend in almost any direction, helping it duplicate the shape of expensive OE hoses without requiring a custom-formed part. The Gates 25302 uses EPDM rubber with steel reinforcement for coolant-system durability, while the flexible layout supports upper and lower hose routing on select vehicles. It is listed for applications such as 1987-1995 Jeep Wrangler upper, 1990-1995 Buick Regal lower, and 1979-1983 Dodge D150 upper, along with many other fitments across the 1970-1996 model years.

This part cross-references Dayco 81081 and Standard Ignition FH55 for the same application.

What it helps solve

• Cracked, swollen, or leaking radiator coolant hose sections
• Hard-to-find OE hose shapes on older vehicles
• Cooling-system repairs where a molded hose is no longer practical
• Routing issues on upper or lower hose locations with offset angles
• Leak concerns at hose ends caused by worn sealing surfaces

Installation notes and tips

• Verify hose position, diameter, and centerline length before installation.
• Check vehicle-specific notes, including AC and cooling-system restrictions.
• Inspect clamps, necks, and adjoining coolant pipes for wear before assembly.
• Confirm the hose routing matches the original upper or lower application on your vehicle.
• After installation, refill and bleed the cooling system according to factory procedure.

Quality assurance

Gates designs the Vulco-Flex II line for flexible routing and improved sealing performance in coolant service. Part number 25302 is built as a standard flexible coolant hose replacement for confirmed applications including Jeep Cherokee, Jeep Wrangler, and Dodge Caravan fitments.