Gates 20566 Radiator Coolant Hose - Lower - Engine To Pipe, Right or Upper

Gates 20566 Molded Coolant Hose Overview

The Gates 20566 molded coolant hose is an EPDM radiator coolant hose built for specific upper, lower, bypass, heater, and other coolant routing needs. It follows OEM-quality specifications and is shaped for direct replacement use on select Nissan and Chevrolet applications.

Compatible With 1984-1986 Nissan Sentra, 1986 Nissan Pulsar NX, and 1967 Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban, this molded hose supports accurate coolant routing where a formed hose profile is required. The Gates Molded Coolant Hose line is built to cover a wide range of replacement needs across common cooling system layouts.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 20566
• Material: EPDM for coolant-system service
• Molded hose construction for formed routing
• End inside diameter: 1 in. / 25 mm on both ends
• Centerline length: 8.1 in. / 206 mm
• No spring, no modular hose sections, and no quick-connect fittings
• Direct replacement style for radiator coolant hose applications

Product Details

Gates 20566 is a molded radiator coolant hose engineered to match the shape and routing requirements of the original hose path. Its EPDM construction is suited to cooling system service, while the molded profile helps maintain proper hose alignment in tight engine compartments. This part number is used across select Nissan Sentra and Pulsar NX lower engine-to-pipe applications, as well as several 1967 Chevrolet Suburban truck applications.

This part cross-references Dayco 70564 and Bosch BP891 for the same application. If you are replacing a worn or leaking hose on a Nissan Sentra, Nissan Pulsar NX, or classic Chevrolet Suburban cooling system, Gates 20566 provides a formed replacement option that matches the listed fitment.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged radiator hose
• Collapsed or softened hose material from heat and age
• Poor hose routing after a previous repair
• Improper fit from a straight universal hose in a formed application
• Cooling system service on lower engine-to-pipe hose locations

Installation Notes

• Fits 1986 Nissan Pulsar NX, lower - engine to pipe.
• Fits 1986 Nissan Sentra, lower - engine to pipe.
• Fits 1984-1985 Nissan Sentra, lower - engine to pipe.
• Fits 1967 Chevrolet C10 Suburban, N/A.
• Fits 1967 Chevrolet C20 Suburban, N/A.
• Fits 1967 Chevrolet K10 Suburban, N/A.
• Fits 1967 Chevrolet K20 Suburban, N/A.
• Re-use the existing protective collar where noted for 1986 Nissan applications.
• Cut to fit where noted for 1986 Nissan applications.
• Verify hose routing, clamp placement, and coolant connection points before service.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement cooling system service. The Gates Molded Coolant Hose line is positioned as a broad replacement range for formed coolant hose applications, including the Gates 20566 part number used on select Nissan and Chevrolet vehicles.