Dayco 72744 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72744

The Dayco Curved Radiator Hose 72744 is designed specifically for BMW vehicles including the 1 Series M, 135i, 135is, 335i, 335is, 335i xDrive, 335xi, X1, and Z4 models. Constructed from durable EPDM material, this black radiator coolant hose ensures reliable performance in your vehicle's cooling system.

• Made from high-quality EPDM material for heat and chemical resistance
• Black color with consistent dimensions: 1 17/32 inch inside diameter on both ends
• Outside diameter of 1 5/8 inch on both ends for secure fitment
• Single inside diameter hose type designed for efficient coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 11 inches for precise fit in designated BMW models

Detailed Product Description

The Dayco Curved Radiator Hose 72744 is engineered to maintain optimal coolant flow within the radiator system of select BMW vehicles. Its EPDM construction offers resistance to heat, ozone, and coolant chemicals, which helps extend the hose's service life under demanding engine conditions. Both ends of the hose feature an inside diameter of 1 17/32 inches and an outside diameter of 1 5/8 inches, ensuring a secure and leak-free connection to the radiator and engine fittings. This single inside diameter hose is designed without a heat shield or protective sleeve, making it suitable for applications where additional protection is not required.

Compatible BMW Models and Applications

This radiator coolant hose is compatible with a range of BMW models, including the 1 Series M, 135i, 135is, 335i, 335is, 335i xDrive, 335xi, X1, and Z4. It is intended for use in the cooling system to replace worn or damaged radiator hoses, helping to maintain engine temperature regulation and prevent overheating.

• Replaces cracked or leaking radiator hoses
• Prevents coolant loss and engine overheating
• Restores proper coolant flow and pressure
• Eliminates swelling or soft spots caused by heat exposure
• Addresses hose deterioration from age or chemical exposure

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72744, ensure the engine is cool before removal of the old hose to avoid burns. Verify that the hose dimensions match the original equipment to guarantee proper fitment. Use appropriate clamps to secure the hose ends and check for leaks after installation. It is recommended to inspect adjacent cooling system components during replacement to maintain overall system integrity.

Quality Assurance and Warranty

Dayco's Curved Radiator Hose line, including part number 72744, adheres to SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for radiator hoses. The EPDM material and manufacturing processes provide durability and resistance to common coolant system stresses. Warranty details should be confirmed with the point of purchase or manufacturer documentation.