Dayco 72838 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72838

The Dayco Curved Radiator Hose 72838 is designed specifically for Mercedes-Benz Sprinter models, including the 1500, 2500, 3500, and 3500XD. This branched radiator coolant hose is constructed from durable EPDM material, ensuring reliable performance in demanding cooling system applications.

• Material: EPDM for heat and chemical resistance
• Color: Black
• Branched hose design with three different inside diameters
• End 1 Inside Diameter: 1 9/32 inches
• End 2 Inside Diameter: 1 9/32 inches
• End 3 Inside Diameter: 21/32 inches
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height: 12 inches
• Does not include heat shield or protective sleeve

Detailed Product Description

The Dayco Curved Radiator Hose 72838 is engineered to meet the specific cooling system requirements of Mercedes-Benz Sprinter vans. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain system integrity under high-temperature conditions. The branched hose design features three connection points with varying inside diameters—1 9/32 inches for both End 1 and End 2, and 21/32 inches for End 3—allowing it to fit complex radiator configurations. The outside diameters are precisely sized to 1 21/32 inches, 1 7/8 inches, and 15/16 inches respectively, ensuring a secure fit with compatible clamps and connectors. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

The Dayco Curved Radiator Hose product line focuses on providing shaped hoses that accommodate specific vehicle cooling system layouts, reducing the need for modifications or additional fittings. This hose is part of that line, designed to replace original equipment on Mercedes-Benz Sprinter models, maintaining proper coolant flow and system pressure.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses on Mercedes-Benz Sprinter 1500, 2500, 3500, and 3500XD
• Resolving coolant leaks caused by hose degradation or damage
• Addressing overheating issues related to compromised coolant flow
• Restoring proper coolant circulation in branched radiator hose configurations
• Maintaining system pressure and preventing coolant loss in complex hose assemblies

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72838, ensure all connections are clean and free of debris before fitting the hose. Use appropriate clamps sized for the hose outside diameters (1 21/32 inches, 1 7/8 inches, and 15/16 inches) to secure the hose ends firmly. Avoid twisting or stretching the hose during installation to maintain its shape and integrity. Since this hose does not include a heat shield or protective sleeve, verify that it is routed away from excessive heat sources or moving parts to prevent premature wear.

Quality Assurance

Dayco manufactures the Curved Radiator Hose 72838 to meet strict SAE specifications, including J20R4 Class D-1 and J1684 Type EC, ensuring compatibility and durability in automotive cooling systems. While specific warranty details are not provided, Dayco products are generally backed by quality standards consistent with OEM replacement parts.