Gates 25472 Radiator Coolant Hose

Flexible coolant hose for OE-style routing

The Gates Vulco-Flex II radiator coolant hose is built for applications that need a flexible, direct-fit style replacement with a durable sealing surface. Part number 25472 is designed to follow the angles and planes of many original coolant hose layouts, making it a practical choice for service on older and specialty vehicles.

Compatible With 1955-1982 Chevrolet, Dodge, GMC, Mazda, and Pontiac applications listed below, including Mazda RX-7 lower hose service and select Dodge Dart upper hose applications. Gates 25472 is a flexible coolant hose solution for radiator and pipe-to-radiator routing where a formed hose is not required.

Key features

• Flexible coolant hose construction for routing in multiple directions
• EPDM and steel materials for heat and coolant-system durability
• Improved sealing surface for stronger leak resistance at the connection points
• 8-inch centerline length with 1.5-inch inside diameter at both ends
• Non-molded design for applications that need a flexible replacement path
• Gates 25472 is engineered to replicate many OE hose angles and planes

Product details

Gates Flexible Coolant Hose (Standard) 25472 is intended for radiator coolant hose service where the original hose shape is difficult to source or where a flexible replacement is preferred. The Vulco-Flex II design helps simplify replacement on vehicles such as the 1979-1982 Mazda RX-7, 1963-1966 Dodge Dart, and 1955-1957 Chevrolet Bel Air by matching the routing needs of the cooling system without relying on a molded profile. This part cross-references Dayco 81101 and Dorman - HELP 67914 for the same application.

What it helps address

• Cracked or deteriorated radiator coolant hose material
• Leakage at hose ends caused by worn sealing surfaces
• Difficulty sourcing an OE-shaped hose for older vehicles
• Cooling-system routing issues where a flexible hose is needed
• Service replacement on upper, lower, or pipe-to-radiator hose locations listed in fitment

Installation notes and tips

Verify end diameter, centerline length, and routing before installation. This hose has 1.5-inch inside diameter ends and an 8-inch centerline length, so confirm the path and clearance in the engine bay before final fitment. Use proper coolant-system service practices, inspect adjoining pipes and clamps for wear, and match the listed position for your vehicle, such as lower on the Mazda RX-7 or upper on the Chevrolet Bel Air and Dodge Dart.

Quality assurance

Gates manufactures the Vulco-Flex II line as a flexible coolant hose solution with durable EPDM and steel construction and an improved sealing surface for leak resistance. Part number 25472 is built for direct replacement use in the applications shown in the fitment data.

Fitment

• Fits 1979-1982 Mazda RX-7, Lower
• Fits 1972 GMC G15/G1500 Van, Upper - Pipe To Radiator; HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1972 GMC G25/G2500 Van, Upper - Pipe To Radiator; HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1972 GMC G35/G3500 Van, Upper - Pipe To Radiator; HVAC heater hose with A/C, fits Serpentine Belt application.
• Fits 1963-1966 Dodge Dart, Upper
• Fits 1961 Dodge Dart, Upper
• Fits 1961-1962 Dodge Lancer, Upper; Not compatible with vehicles equipped with AC.
• Fits 1955-1957 Pontiac Laurentian, Upper
• Fits 1955-1956 Chevrolet Bel Air, Upper