Gates 25473 Radiator Coolant Hose

Gates 25473 Flexible Coolant Hose Overview

Gates 25473 is a flexible radiator coolant hose built for direct replacement in a wide range of older cooling systems. The Vulco-Flex II design bends in almost any direction and uses an improved sealing surface to help reduce leaks at the connection points.

This Flexible Coolant Hose (Standard) is sized with 1.5 in. / 38 mm inside diameter ends and a 10.5 in. / 267 mm centerline length. The EPDM and steel construction supports durable coolant routing where a formed OE hose is no longer practical or available.

Key Features

• Part number 25473 from Gates Flexible Coolant Hose (Standard) line
• 1.5 in. / 38 mm inside diameter at both ends
• 10.5 in. / 267 mm centerline length
• EPDM and steel construction for coolant service
• Flexible routing to replicate angles and planes found in OE hose layouts
• Improved sealing surface for stronger leak resistance at the hose connection
• Non-molded design for broad application coverage

Product Details

Gates Vulco-Flex II coolant hose is engineered for vehicles that need a straight-forward replacement for a shaped radiator hose. Instead of relying on a molded profile, this hose can be formed to match the routing required by the cooling system, making it a practical choice for service work on classic and late-model applications. It is listed for a broad range of vehicles including Ford Bronco, Toyota Land Cruiser, and Jeep Cherokee applications, along with many other radiator hose positions.

This part cross-references Dayco 81121 for the same application. The Gates 25473 hose is used where a lower, upper, or pipe-to-radiator coolant connection requires a flexible replacement that matches the original hose path.

Common Problems This Hose Can Address

• Cracked or leaking radiator coolant hose connections
• Hard-to-find OE hose shapes on older vehicles
• Cooling system routing that requires a flexible replacement instead of a molded hose
• Service delays caused by discontinued factory hose profiles
• Improper hose alignment at upper or lower radiator connections

Installation Notes and Fitment

Install Gates 25473 only where the hose diameter and centerline length match the vehicle’s cooling system requirements. Confirm the routing before installation so the hose follows the original angle and plane without kinking or stretching. This part is listed for many applications, including Fits 1980 Ford Bronco, Upper; Fits 1986-1987 Jeep Cherokee, Upper; Fits 1988-1992 Toyota Land Cruiser, Lower - Pipe To Radiator; and Fits 1993-1998 Lincoln Mark VIII, Lower - Radiator To Tee.

• Fits 1993-1998 Lincoln Mark VIII, Lower - Radiator To Tee
• Fits 1993-1994 Subaru Impreza, Upper
• Fits 1988-1992 Toyota Land Cruiser, Lower - Pipe To Radiator
• Fits 1986-1991 Mazda RX-7, Lower
• Fits 1990 Chevrolet Astro, Lower - Radiator To Pipe
• Fits 1990 GMC Safari, Lower - Radiator To Pipe
• Fits 1989 Chevrolet Astro, Lower - Pipe To Radiator
• Fits 1989 GMC Safari, Lower - Pipe To Radiator
• Fits 1986-1987 Jeep Cherokee, Upper
• Fits 1986-1987 Jeep Comanche, Upper
• Fits 1985 Jeep Cherokee, Upper, Re-use existing protective collar.
• Fits 1985 Jeep Wagoneer, Upper, Re-use existing protective collar.
• Fits 1980-1983 Toyota Land Cruiser, Upper
• Fits 1965-1968 Toyota Land Cruiser, Upper
• Fits 1980 Ford Bronco, Upper, Without air conditioning; with standard cooling.
• Fits 1980 Ford F-100, Upper, Without air conditioning; with standard cooling.
• Fits 1980 Ford F-150, Upper, Without air conditioning; with standard cooling.
• Fits 1980 Ford F-250, Upper, Without air conditioning; with standard cooling.
• Fits 1980 Ford F-350, Upper, Without air conditioning; with standard cooling.
• Fits 1979 Toyota Land Cruiser, Upper, Late
• Fits 1972-1976 Ford Courier, Lower
• Fits 1974 Jaguar XJ6, Upper
• Fits 1970-1972 Dodge Dart, Upper, Without air conditioning; with standard cooling.
• Fits 1970-1971 Dodge Challenger, Upper, Without air conditioning; with standard cooling.
• Fits 1970-1971 Dodge Charger, Upper, Without air conditioning; with standard cooling.
• Fits 1965-1971 Jeep CJ5, Upper, W/O 939521 Rad.
• Fits 1967-1969 Dodge Dart, Upper
• Fits 1963-1965 Dodge Dart, Upper
• Fits 1960 Dodge Dart, Upper
• Fits 1966-1968 Ford Bronco, Upper - Engine To Tank
• Fits 1966-1967 Pontiac LeMans, Upper
• Fits 1966-1967 Pontiac Tempest, Upper
• Fits 1965 Chevrolet El Camino, Upper, Early
• Fits 1965 Chevrolet Malibu, Upper, Early
• Fits 1964 Chevrolet El Camino, Upper
• Fits 1964 Chevrolet Malibu, Upper
• Fits 1960-1964 Chrysler Imperial, Upper, Not compatible with vehicles equipped with AC.
• Fits 1960-1964 Chrysler New Yorker, Upper, Not compatible with vehicles equipped with AC.
• Fits 1961-1964 Chrysler Newport, Upper, Not compatible with vehicles equipped with AC.
• Fits 1960-1964 Chrysler Town & Country, Upper, Not compatible with vehicles equipped with AC.
• Fits 1962 Chevrolet Bel Air, Upper
• Fits 1962 Chevrolet Impala, Upper
• Fits 1960-1962 Dodge Dart, Upper, Not compatible with vehicles equipped with AC.
• Fits 1962 Dodge Lancer, Upper, Not compatible with vehicles equipped with AC.
• Fits 1962 Mercury Colony Park, Upper
• Fits 1961-1962 Pontiac Laurentian, Upper
• Fits 1961-1962 Pontiac Parisienne, Upper
• Fits 1960-1961 Chrysler 300, Upper, Not compatible with vehicles equipped with AC.
• Fits 1961 Dodge Lancer, Upper
• Fits 1957-1960 Ford F-100, Upper
• Fits 1957-1960 Ford F-250, Upper
• Fits 1957-1960 Ford F-350, Upper
• Fits 1959 Chrysler 300, Upper, W/O A.C.; W/O Air Suspension
• Fits 1959 Chrysler Imperial, Upper, W/O A.C.; W/O Air Suspension
• Fits 1959 Chrysler New Yorker, Upper, W/O A.C.; W/O Air Suspension
• Fits 1959 Chrysler Town & Country, Upper, W/O A.C.; W/O Air Suspension
• Fits 1957-1958 Chrysler 300, Upper, HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1958 Chrysler Imperial, Upper, HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1957-1958 Chrysler New Yorker, Upper, HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1957-1958 Chrysler Town & Country, Upper, HVAC heater hose with A/C, fits Serpentine Belt application.

Quality Assurance

Gates designs the Vulco-Flex II line for durable coolant service and improved sealing at the hose ends. Part number 25473 is built to replace a wide range of OE-style radiator coolant hose applications with a flexible, service-friendly layout.