Gates 23378 Radiator Coolant Hose - Upper - Radiator To Pipe

Gates 23378 Molded Coolant Hose

Gates 23378 is a molded radiator coolant hose built to OEM-quality specifications for the upper radiator-to-pipe connection on select Mini Cooper models. It uses EPDM construction and a molded shape to match the original routing and fitment for 2002-2009 Mini Cooper applications.

Key Features

• Brand: Gates Molded Coolant Hose line
• Part number: 23378
• Material: EPDM for coolant-system service
• Molded hose design for the upper radiator-to-pipe position
• End inside diameter: 1.21 in. (31 mm) at both ends
• Centerline length: 6.4 in. (163 mm)
• No spring and no quick-connect fittings
• Direct replacement style for select Mini Cooper cooling system service

Product Details

The Gates Molded Coolant Hose line is built for upper, lower, bypass, heater, and other coolant-system applications, with dimensions and formed bends that follow OE-style routing. This Gates 23378 hose is specified for the upper radiator to pipe position on 2002-2009 Mini Cooper models, helping maintain proper coolant flow and a clean factory-style installation. If you are replacing a worn Mini Cooper radiator hose, this molded EPDM hose provides the shape and sizing needed for the cooling circuit.

This part cross-references Dayco 72586 for the same application.

What It Helps Fix

• Coolant leaks from a cracked or aged upper radiator hose
• Softening, swelling, or collapse in the hose body
• Improper hose routing caused by a distorted original hose
• Cooling-system service on a 2002-2009 Mini Cooper
• Loss of coolant flow at the radiator-to-pipe connection

Installation Notes

Verify the hose routing, end diameters, and centerline length before installation. Drain the cooling system as needed, inspect the mating pipes and clamps, and confirm the hose seats fully at the upper radiator-to-pipe connection. After installation, refill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for consistent fit and cooling-system service. The Gates 23378 is part of a broad replacement hose line covering multiple coolant applications, including Mini Cooper radiator hose replacement needs.