Dayco 71583 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 71583

The Dayco Curved Radiator Hose 71583 is designed for reliable coolant flow in select Buick, Oldsmobile, and Pontiac vehicles. Engineered with durable EPDM material, this branched radiator coolant hose ensures consistent performance in the cooling system of models like the Achieva, Grand Am, and Skylark.

• Constructed from heat-resistant EPDM material for durability
• Branched hose design with three connection points
• Protective sleeve included for added abrasion resistance
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• End diameters: 1 5/16" (two ends) and 3/4" (third end)
• Trunk height of 13 1/2 inches for proper fitment

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on providing precise fitment and reliable coolant flow for vehicles requiring branched hose configurations. This product line emphasizes quality materials and compliance with SAE standards, ensuring compatibility and durability in automotive cooling systems. The 71583 part is a representative component within this line, tailored for specific GM makes and models.

Detailed Product Description

This Dayco radiator coolant hose features a branched design with three connection points, allowing it to efficiently route coolant in complex engine layouts. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, extending service life. The inclusion of a protective sleeve enhances abrasion resistance, although it does not contain a heat shield. The hose ends have precise inside diameters of 1 5/16 inches on two ends and 3/4 inch on the third, with corresponding outside diameters ensuring secure connections. Its black color matches OEM specifications for a clean installation.

Compatible Vehicles and Common Applications

• Replacement radiator hose for Buick Achieva models
• Cooling system hose for Oldsmobile Grand Am vehicles
• Fits Pontiac Skylark radiator coolant routing
• Addresses coolant leaks due to cracked or worn hoses
• Resolves overheating issues caused by restricted coolant flow

Installation Notes and Tips

• Verify hose diameters and trunk height to ensure proper fit
• Inspect clamps and connections for secure sealing
• Replace any damaged or brittle hoses to prevent coolant loss
• Ensure coolant system is depressurized before removal
• Use compatible coolant fluids to maintain hose integrity

Quality Assurance and Warranty

Dayco's Curved Radiator Hose 71583 complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, reflecting adherence to industry specifications for coolant hoses. The EPDM material and protective sleeve contribute to long-term durability. Warranty details should be confirmed with the original equipment manufacturer or distributor.