Dayco 71145 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 71145

The Dayco Curved Radiator Hose 71145 is designed for reliable coolant flow in various Chevrolet and GMC trucks and SUVs. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in your vehicle's cooling system.

• Constructed from high-quality EPDM rubber for heat and chemical resistance
• Dual inside diameters: 1 3/4 inches and 2 1/16 inches for precise fitment
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 17 inches for proper routing in engine bay
• Designed without heat shield or protective sleeve

Detailed Product Description

The Dayco Curved Radiator Hose 71145 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a 1 3/4 inch inside diameter on one end and 2 1/16 inches on the other, allowing it to connect different radiator and engine components securely. Its black color matches OEM standards, making it suitable for visible engine bay applications. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses. With a trunk height of 17 inches, it fits the routing needs of various Chevrolet and GMC models without additional modifications.

About the Curved Radiator Hose Product Line

Dayco's Curved Radiator Hose line focuses on providing hoses with precise bends and dual inside diameters to accommodate specific vehicle cooling system layouts. This product line is engineered to maintain coolant flow efficiency while fitting tightly within the engine compartment. The 71145 hose exemplifies this approach by offering a curved design that matches factory specifications for Chevrolet and GMC trucks and SUVs.

Compatible Vehicles and Common Applications

• Chevrolet Blazer, C10, C10 Suburban, C20, C20 Suburban, C30
• Chevrolet C1500, C1500 Suburban, C2500, C2500 Suburban, C3500
• GMC G20, G30, Jimmy, K5 Blazer, K10, K10 Suburban
• GMC K20, K20 Suburban, K30, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500
• GMC R10, R10 Suburban, R20, R20 Suburban, R30, R1500, R1500 Suburban, R2500, R2500 Suburban, R3500
• GMC V10, V10 Suburban, V20, V20 Suburban, V30, V1500, V1500 Suburban, V2500, V2500 Suburban, V3500

Common Issues Addressed by Dayco Radiator Coolant Hose 71145

• Coolant leaks due to cracked or worn radiator hoses
• Overheating caused by restricted or collapsed hoses
• Improper fitment from incorrect hose diameters
• Degradation from exposure to heat and coolant chemicals
• Replacement of aging or damaged OEM hoses in Chevrolet and GMC trucks

Installation Notes and Tips

• Ensure engine is cool before removing old radiator hose
• Check hose routing matches OEM path to avoid kinks or interference
• Use appropriate clamps to secure hose ends tightly
• Inspect radiator and engine fittings for corrosion or damage before installation
• Verify hose length and diameters match vehicle requirements

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71145 to meet SAE specifications, ensuring durability and performance under typical operating conditions. The EPDM material provides resistance to heat, ozone, and coolant chemicals, contributing to a longer service life. While specific warranty details are not provided, Dayco products generally adhere to industry standards for quality and reliability.