Gates 51603 Radiator Coolant Hose - Lower

Reliable Radiator Coolant Hose for Dodge Sprinter Models

The Gates Molded Coolant Hose 51603 is engineered to provide dependable cooling system performance for Dodge Sprinter 2500 and Sprinter 3500 vehicles. Designed with durable materials and precise dimensions, this radiator coolant hose ensures proper coolant flow and system integrity.

• Constructed from EPDM, plastic, and steel for durability and heat resistance
• Molded design with integrated branch and quick connectors for secure fitment
• Centerline length of 16 inches (406 mm) for accurate replacement
• Multiple inside diameters: 0.65 in (17 mm), 1.29 in (33 mm), and 1.55 in (39 mm) to match OEM specifications
• Includes one branch with male and Henn quick connectors for modular hose assembly
• Does not contain a spring, ensuring consistent coolant flow without restriction

About the Gates Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-molded radiator hoses designed to meet exact OEM fitment requirements. These hoses incorporate modular components such as branches and quick connectors to simplify installation and maintain system integrity. The 51603 part number is part of this line, offering a tailored solution for Dodge Sprinter 2500 and 3500 cooling systems.

Detailed Product Description

This radiator coolant hose features a molded construction combining EPDM rubber, plastic, and steel components to withstand high temperatures and pressure within the cooling system. The hose includes a single branch with both male and Henn quick connectors, facilitating a secure and leak-resistant connection. Its centerline length measures 16 inches (406 mm), with varying inside diameters at each end to match the specific coolant routing of Dodge Sprinter 2500 and 3500 models. The absence of a spring inside the hose ensures unobstructed coolant flow, reducing the risk of overheating or coolant restriction.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses on Dodge Sprinter 2500 and 3500
• Resolving coolant leaks caused by deteriorated hose material or failed connectors
• Addressing overheating issues due to restricted or collapsed hoses
• Maintaining proper coolant circulation with OEM-spec hose dimensions and fittings
• Upgrading to a molded hose with integrated quick connectors for improved reliability

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to prevent burns. Verify that the hose dimensions and connector types match the original equipment. The molded design with quick connectors simplifies installation, but proper seating and clamp tightening are essential to prevent leaks. Inspect surrounding components for wear during replacement to maintain overall cooling system health.

Quality Assurance and Warranty

Gates Molded Coolant Hose 51603 is manufactured to meet or exceed OEM standards for durability and performance. The use of EPDM, plastic, and steel materials ensures resistance to heat, pressure, and coolant chemicals. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship.