Dayco 71689 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71689

The Dayco Curved Radiator Hose 71689 is designed for reliable coolant flow in select Buick, Oldsmobile, and Pontiac vehicles. 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 for heat and chemical resistance
• Black color with protective sleeve for added durability
• Dual inside diameters: 1 9/32 inches and 1 11/32 inches
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 16 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose line offers specialized radiator coolant hoses designed to meet specific vehicle requirements. The 71689 part number features a curved design that facilitates optimal coolant flow and fitment in the cooling system of Buick Achieva, Oldsmobile Cutlass, and Pontiac Grand Am and Skylark models. Made from EPDM, this hose resists heat, ozone, and coolant chemicals, ensuring durability under demanding engine conditions. The hose includes a protective sleeve to guard against abrasion and external damage, although it does not contain a heat shield. Its dual inside diameter design (1 9/32 inches on one end and 1 11/32 inches on the other) allows for a secure connection to different radiator and engine fittings.

Compatible Vehicles and Applications

• Buick Achieva radiator coolant system maintenance
• Oldsmobile Cutlass cooling system hose replacement
• Pontiac Grand Am and Skylark radiator hose repair
• Replacement for worn or cracked radiator coolant hoses
• Addressing coolant leaks and overheating issues related to hose failure

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71689, ensure the engine is cool to prevent burns. Verify the hose orientation matches the curved design for proper coolant flow. Use appropriate clamps to secure both ends, matching the dual inside diameters for a tight seal. Inspect surrounding components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71689 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry cooling hose specifications. The use of EPDM material and protective sleeve enhances durability and resistance to common coolant system stresses. Warranty details should be confirmed with the original equipment manufacturer or supplier.