Gates 23604 Radiator Coolant Hose - Lower

Gates 23604 Lower Radiator Coolant Hose

The Gates Molded Coolant Hose 23604 is a lower radiator hose built to OEM-quality specifications for select Ram and Dodge Ram trucks. It is formed to match the original routing and dimensions needed for lower coolant system service on 2009-2020 Ram 1500, Ram 1500 Classic, Ram 2500, and Ram 3500 applications.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant hose applications, giving technicians a direct replacement option for radiator hose service without needing to source an OE dealer part. This molded EPDM hose is shaped for the application and sized for the correct coolant connection points.

Key Features

• Part number: 23604
• Brand: Gates Molded Coolant Hose
• Lower radiator coolant hose for select Ram and Dodge Ram trucks
• EPDM construction for coolant system use
• Molded design for application-specific routing
• End inside diameters: 1.75 in. (44 mm) and 2 in. (51 mm)
• Centerline length: 18.3 in. (465 mm)
• No spring, no modular sections, and no quick-connect fittings

Product Details

Gates 23604 is a molded radiator coolant hose engineered for lower hose replacement on Ram 1500, Ram 1500 Classic, Ram 2500, and Ram 3500 models across 2009-2020. The molded shape helps match factory hose routing, while the EPDM material is commonly used in cooling-system service for its resistance to heat and coolant exposure. This part cross-references Continental 66844 and Dayco 72568 for the same application.

Common Problems This Hose Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or connection ends
• Softening, swelling, or deterioration from age and heat
• Incorrect hose routing after prior repair work
• Cooling-system service on Ram 1500, Ram 2500, or Ram 3500 trucks

Installation Notes

Verify the vehicle year, model, and lower-hose configuration before installation. This hose is listed for W/O H.D. Cool. on 2014-2020 Ram 1500, 2014-2019 Ram 2500, 2014-2018 Ram 3500, and 2019 Ram 1500 Classic applications, with additional lower-hose coverage for 2009-2013 Dodge Ram and 2010-2013 Ram trucks. Inspect clamps, mating surfaces, and coolant condition during service, and confirm the hose follows the original routing without twist or interference.

Quality Assurance

Gates manufactures its molded coolant hose line to OEM-quality specifications and positions it as a broad replacement source for coolant hose service across upper, lower, bypass, heater, and related applications.