Dayco 71426 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 71426

The Dayco Curved Radiator Hose 71426 is designed to provide reliable coolant flow for select Chevrolet and GMC trucks and vans. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose supports efficient engine cooling in demanding conditions.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black single inside diameter hose with 1 1/2 inch and 1 3/4 inch end diameters
• Includes a protective sleeve for added durability
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height measures 15 1/4 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 71426 is a single inside diameter hose designed specifically for radiator coolant systems. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose ensures long-lasting performance. The black hose features two different inside diameters—1 1/2 inch on one end and 1 3/4 inch on the other—allowing it to fit securely between radiator and engine connections. A protective sleeve is included to guard against abrasion and external damage, although this hose does not contain a heat shield. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to accommodate specific vehicle cooling system layouts. This product line addresses the need for hoses that fit complex engine bay configurations without compromising coolant flow or durability. The 71426 part is a representative example, engineered to meet the exacting requirements of Chevrolet and GMC truck and van models.

Compatible Vehicles and Common Applications

• Chevrolet C1500, C2500, C2500 Suburban, C3500
• Chevrolet Express 1500, Express 2500, Express 3500
• GMC G30, K2500, K2500 Suburban, K3500
• GMC Savana 1500, Savana 2500, Savana 3500

Issues Addressed by Dayco Radiator Coolant Hose 71426

• Prevents coolant leaks caused by cracked or worn hoses
• Maintains proper coolant flow to avoid engine overheating
• Resists degradation from heat and chemical exposure
• Protects against abrasion damage with integrated protective sleeve
• Ensures secure fitment with dual inside diameter ends

Installation Notes and Tips

• Verify hose dimensions and fitment with your specific Chevrolet or GMC model before installation
• Inspect radiator and engine connections for corrosion or damage prior to hose replacement
• Use appropriate clamps to secure hose ends and prevent leaks
• Ensure the protective sleeve is properly positioned to maximize abrasion resistance
• Replace coolant and bleed the system after installation to remove air pockets

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71426 to meet SAE specifications, ensuring compliance with industry standards for durability and performance. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to support reliable operation in automotive cooling systems.