Dayco 72377 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72377

The Dayco Curved Radiator Hose 72377 is designed to provide reliable coolant flow for Chevrolet and GMC vans. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose ensures consistent performance in demanding conditions.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• End 1 and End 2 inside diameter: 1 9/32 inches
• End 1 and End 2 outside diameter: 1 21/32 inches
• Includes a protective sleeve for added durability
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Chevrolet Express and GMC Savana 1500, 2500, and 3500 models

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and dimensions to match specific vehicle cooling system requirements. This product line emphasizes durability and fitment accuracy, reducing installation challenges and ensuring proper coolant flow. The 72377 hose is part of this line, offering a tailored solution for Chevrolet Express and GMC Savana vans.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for automotive cooling systems. The hose features a single inside diameter design with both ends measuring 1 9/32 inches internally and 1 21/32 inches externally, ensuring a secure connection to the radiator and engine fittings. The black hose includes a protective sleeve to guard against abrasion and premature wear, although it does not contain a heat shield. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for coolant system applications.

Compatible Vehicles and Common Applications

• Chevrolet Express 1500, 2500, 3500
• GMC Savana 1500, 2500, 3500
• Replacement for worn or cracked radiator coolant hoses
• Addresses coolant leaks and overheating issues related to hose failure
• Prevents coolant contamination from hose degradation

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose
• Check hose clamps and replace if necessary for a secure fit
• Verify the hose orientation matches the curved design for proper coolant flow
• Inspect surrounding components for wear or damage during installation
• Use coolant compatible with vehicle manufacturer specifications

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72377 to meet industry SAE standards, ensuring reliable performance in Chevrolet and GMC vans. The hose is built to withstand typical operating temperatures and pressures found in automotive cooling systems. Warranty details should be confirmed with the original equipment provider or distributor.