Dayco 70734 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 70734

The Dayco Curved Radiator Hose 70734 is designed specifically for Chevrolet G10, G20, and G30 models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.

• Made from high-quality EPDM rubber for heat and chemical resistance
• Black color with a curved design for precise fitment
• 1 1/2 inch inside diameter on both ends for consistent coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type without heat shield or protective sleeve
• Trunk height of 22 inches suitable for specific Chevrolet van models

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to match OEM specifications. This product line is engineered to maintain coolant system integrity by ensuring proper fit and flow, reducing the risk of leaks or premature wear. The 70734 part number is part of this line, offering a tailored solution for Chevrolet G10, G20, and G30 vans requiring a curved radiator coolant hose.

Technical Description and Specifications

The Dayco 70734 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 1/2 inches, making it a single i.d. hose suitable for specific radiator connections. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses. The hose does not include a heat shield or protective sleeve, which is consistent with many OEM radiator hose designs. Its trunk height measures 22 inches, matching the routing needs of Chevrolet G10, G20, and G30 vans.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Chevrolet G10, G20, and G30 vans
• Resolving coolant leaks caused by hose degradation or improper fit
• Maintaining proper coolant flow and preventing overheating issues
• Addressing hose swelling or softening due to heat exposure
• Ensuring compatibility with OEM cooling system components

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 70734, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose routing matches the original to avoid kinks or stress points. Use appropriate clamps to secure both ends firmly, and inspect adjacent components for wear or damage. Proper installation will help maintain system pressure and prevent leaks.

Quality Assurance and Warranty

Dayco manufactures the 70734 radiator coolant hose to meet strict SAE specifications, ensuring durability and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability. Using this hose helps maintain the integrity of the cooling system in Chevrolet G10, G20, and G30 vans.