Dayco 72137 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72137

The Dayco Curved Radiator Hose 72137 is designed specifically for Chevrolet Express 1500, Express 2500, GMC Savana 1500, and Savana 2500 models. This radiator coolant hose features a dual inside diameter design and is constructed from durable EPDM material to withstand typical engine cooling system demands.

• Made from high-quality EPDM material for heat and chemical resistance
• Dual inside diameter hose with 1 1/2 inch and 1 3/4 inch ends
• Includes a protective sleeve for added durability
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 23 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 72137 is engineered to meet the cooling system requirements of select Chevrolet and GMC vans, including the Express 1500, Express 2500, Savana 1500, and Savana 2500. Constructed from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring reliable performance under normal operating conditions. The dual inside diameter design, with one end measuring 1 1/2 inches and the other 1 3/4 inches, allows for a secure and precise connection to the radiator and engine components. Additionally, the hose includes a protective sleeve to guard against abrasion and premature wear, although it does not contain a heat shield. The 23-inch trunk height ensures proper routing within the engine bay.

About the Curved Radiator Hose Product Line

Dayco's Curved Radiator Hose line focuses on providing hoses with specific bends and dual inside diameters to accommodate unique engine configurations. This product line is designed to offer a precise fit and reliable coolant flow for vehicles requiring non-linear hose shapes. The 72137 part number is part of this line, delivering a tailored solution for Chevrolet and GMC vans that demand a curved hose with dual diameter ends and protective features.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Chevrolet Express and GMC Savana vans
• Addressing coolant leaks caused by hose degradation or damage
• Ensuring proper coolant flow with a hose designed for dual inside diameters
• Preventing abrasion damage with the included protective sleeve
• Maintaining engine cooling system integrity in vehicles with curved hose routing requirements

Installation Notes and Tips

• Verify compatibility with Chevrolet Express 1500, Express 2500, GMC Savana 1500, or Savana 2500 before installation
• Inspect hose ends and clamps for proper fit to 1 1/2 inch and 1 3/4 inch diameters
• Ensure the protective sleeve is positioned correctly to prevent abrasion
• Replace clamps if they show signs of wear or corrosion
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72137 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry specifications for coolant hoses. The use of EPDM material and protective sleeve enhances durability and service life. Warranty coverage details should be confirmed with the original equipment manufacturer or supplier, as Dayco typically offers limited warranties against defects in material and workmanship.