Dayco 71550 Radiator Coolant Hose - Lower - Pipe To Radiator

Dayco 71550 Curved Radiator Hose

Dayco 71550 is a curved radiator coolant hose built for the cooling system on select Toyota applications. It uses EPDM construction and a single I.D. hose design to provide a direct replacement for the lower pipe-to-radiator connection on the Toyota Previa.

Compatible with 1991-1997 Toyota Previa, lower - pipe to radiator, this hose matches the original routing and inside diameter requirements for a proper cooling-system connection. The Dayco Curved Radiator Hose line is built for vehicle-specific fitment where a formed hose shape is needed to follow the factory path.

Key Features

• Part number 71550 for easy identification and ordering
• EPDM rubber construction for cooling-system service
• Black finish for a factory-style appearance
• Single I.D. hose design
• End 1 inside diameter: 1 15/32 in.
• End 2 inside diameter: 1 15/32 in.
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved hose shape for the lower pipe-to-radiator route

Product Details

This Dayco radiator coolant hose is made for the lower cooling-system connection on the Toyota Previa and is shaped to follow the factory hose path. The EPDM material is commonly used in coolant applications because it is suited to heat and coolant exposure, while the curved profile helps maintain the intended routing between the pipe and radiator. Dayco 71550 is a direct-fit style replacement for 1991-1997 Toyota Previa models with the lower pipe-to-radiator hose configuration.

This part cross-references ACDelco 26201X and Gates 21900 for the same application.

Common Cooling System Issues It Can Address

• Cracked or split lower radiator hose
• Coolant seepage at the pipe-to-radiator connection
• Softening or swelling from age and heat cycling
• Restricted coolant flow caused by a deteriorated hose
• Incorrect hose routing after a failed replacement

Installation Notes and Tips

Verify the hose routing before installation and confirm the end diameters match the vehicle connection points. Inspect the radiator neck, pipe ends, and clamps for wear or corrosion before installing the new hose. After installation, refill the cooling system with the correct coolant and check for leaks once the engine reaches operating temperature.

Quality Assurance

Dayco 71550 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for radiator hose applications. The part is specified for 1991-1997 Toyota Previa lower pipe-to-radiator fitment.