Gates 23605 Radiator Coolant Hose - Upper

Gates 23605 Molded Coolant Hose for Ram

The Gates 23605 molded coolant hose is built for upper radiator hose applications on select Ram trucks and Dodge Ram models. It uses EPDM construction and OEM-style molded shaping to match the routing and dimensions needed for a proper cooling system repair.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications with OE-style specifications. This makes the 23605 a direct-fit replacement choice for Ram 1500, Ram 2500, and Ram 3500 cooling system service where the original hose has aged, softened, or cracked.

Key Features

• EPDM rubber construction for coolant system use
• Molded hose design for factory-style routing
• End 1 inside diameter: 1.5 in. (38 mm)
• End 2 inside diameter: 1.75 in. (44 mm)
• Centerline length: 47.2 in. (1199 mm)
• No spring, no modular sections, and no quick-connect fittings
• Upper radiator coolant hose application

Detailed Description

Gates 23605 is a molded radiator coolant hose engineered for upper hose service on 2009-2024 Ram applications, including Ram 1500 Classic, Ram 1500, Ram 2500, Ram 3500, and 2010 Dodge Ram trucks. The molded shape helps maintain the correct hose path in the engine bay, while the EPDM material is suited for coolant exposure and everyday thermal cycling. If you are replacing a worn upper coolant hose on a Ram 1500 or Ram 2500, this part provides the dimensions and form needed for a clean replacement.

This part cross-references Continental 66164 and Dayco 72595 for the same application. Gates 23605 is also referenced by Mopar 55056772AD in related applications.

What It Helps Fix

• Coolant leaks from a cracked or split upper radiator hose
• Softening, swelling, or collapse of an aging hose
• Improper hose routing after a previous repair
• Overheating caused by restricted coolant flow
• Visible wear at the hose ends or molded bends

Installation Notes and Tips

Verify end diameters and centerline length against the original hose before installation. Confirm the vehicle application by year, make, model, and upper hose position, especially on 2009 Dodge Ram trucks with VIN 11th digit J or S. Inspect hose clamps, thermostat housing connections, and radiator necks for corrosion or damage before installing the new hose.

Fits 2019-2024 Ram 1500 Classic, Upper. Fits 2011-2022 Ram 1500, Upper. Fits 2011-2019 Ram 2500, Upper. Fits 2011-2018 Ram 3500, Upper. Fits 2010 Dodge Ram 1500, Upper. Fits 2010 Dodge Ram 2500, Upper. Fits 2009 Dodge Ram 1500, Upper, VIN 11th Digit J, S. Fits 2009 Dodge Ram 2500, Upper, VIN 11th Digit J, S. Fits 2009 Dodge Ram 3500, Upper, VIN 11th Digit J, S.

Quality Assurance

Gates manufactures this molded coolant hose to OE-style specifications for radiator hose replacement service. The Gates molded coolant hose line is built to cover a wide range of cooling system applications with consistent fitment and material selection.