Gates 20801 Radiator Coolant Hose

Gates 20801 Molded Coolant Hose Overview

The Gates 20801 molded coolant hose is an OE-style radiator coolant hose built for specific upper and lower cooling-system routes, bypass circuits, heater connections, and other coolant applications. Made from EPDM, it is shaped to follow factory routing and help maintain a secure coolant path in vehicles such as the Toyota 4Runner, Toyota Pickup, BMW M3, BMW 320i, and Saturn Vue.

The Gates Molded Coolant Hose line is engineered around OEM-quality specifications and covers a wide range of replacement needs for radiator and HVAC coolant routing. If you are replacing a molded radiator hose on a 2002-2003 Saturn Vue or a lower engine-to-pipe hose on a Toyota 4Runner or Toyota Pickup, part number 20801 provides a direct-fit replacement format.

Key Features

• EPDM construction for coolant-system service
• Molded shape for factory-style hose routing
• End 1 inside diameter: 1.26 in. (32 mm)
• End 2 inside diameter: 1.5 in. (38 mm)
• Centerline length: 12.7 in. (323 mm)
• No spring and no quick-connect fittings
• Designed for upper, lower, bypass, heater, and related coolant applications
• Part number: Gates 20801

Product Details

Gates 20801 is a molded radiator coolant hose formed to match the contours needed in factory cooling layouts. Its EPDM material is selected for coolant exposure, while the molded profile helps the hose follow the intended path between components without unnecessary strain. This makes it a practical replacement for vehicles that use a shaped hose in the cooling or HVAC circuit, including Toyota 4Runner, Toyota Pickup, BMW M3, BMW 320i, and Saturn Vue applications listed for this part.

This part cross-references Dayco 71383 for the same application.

Common Problems This Hose Can Address

• Cracked or split radiator coolant hose
• Coolant leaks at a molded hose section
• Collapsed or softened hose from age and heat
• Improper hose routing after a previous repair
• Cooling-system service on a vehicle with a shaped OEM hose path

Installation Notes and Tips

• Verify the hose route, end diameters, and centerline length before installation.
• Inspect adjoining pipes, thermostat housing, and clamps for wear or corrosion.
• Drain coolant as needed before removing the existing hose.
• Confirm the hose is seated fully and routed without twist or kinks.
• After installation, refill and bleed the cooling system according to vehicle service procedures.

Quality Assurance

Gates Molded Coolant Hoses are manufactured to OEM-quality specifications for cooling-system replacement work. The Gates 20801 is part of a broad molded hose line developed for radiator and heater hose service across multiple vehicle applications.