Dayco 71850 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 71850

The Dayco Curved Radiator Hose 71850 is designed to provide reliable coolant flow for a range of GM and Mitsubishi vehicles. Engineered with durable EPDM material, this black radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from EPDM for heat and chemical resistance
• Black color for standard OEM appearance
• Both ends have a 1 5/16 inch inside diameter
• Single inside diameter hose type for uniform coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 17 inches for precise fitment
• Compatible with multiple Buick, Chevrolet, Mitsubishi, Oldsmobile, Plymouth, Pontiac, and Saturn models

Detailed Product Description

The Dayco Curved Radiator Hose 71850 is manufactured from EPDM (ethylene propylene diene monomer) rubber, a material known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features a consistent 1 5/16 inch inside diameter on both ends, ensuring a secure and leak-free connection within the cooling system. The hose is designed as a single inside diameter type, which supports steady coolant flow and helps maintain optimal engine temperature. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling applications. The 17-inch trunk height dimension allows for proper routing and fitment in the specified vehicle models.

About the Curved Radiator Hose Product Line

Dayco's Curved Radiator Hose line focuses on delivering hoses shaped to fit specific engine layouts, reducing the need for modifications during installation. This product line emphasizes precise dimensions and material quality to maintain cooling system integrity. The 71850 part is part of this line, offering a curved design that matches OEM specifications for a range of GM and Mitsubishi vehicles.

Compatible Vehicles and Common Applications

• Buick Allure, Century, LaCrosse, Regal
• Chevrolet Impala, Lumina, Monte Carlo, Uplander
• Mitsubishi Eclipse, Laser
• Oldsmobile Cutlass Supreme, Silhouette
• Plymouth Grand Prix, Montana
• Pontiac Grand Prix, Trans Sport
• Saturn Relay, Terraza, Intrigue

Common Issues Addressed by Dayco Radiator Hose 71850

• Coolant leaks due to cracked or worn hoses
• Overheating caused by restricted coolant flow
• Swelling or softening of old radiator hoses
• Improper fitment leading to coolant system pressure loss
• Degradation from exposure to heat and chemicals

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Inspect hose connections and clamps for corrosion or damage and replace if necessary. The 71850 hose should be routed to avoid sharp bends or contact with moving parts. Use proper clamps to secure both ends with the 1 5/16 inch inside diameter fittings. Verify there are no leaks after installation by running the engine and checking coolant flow.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71850 to meet SAE specifications, ensuring durability and performance under normal operating conditions. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality assurance. For warranty information, refer to Dayco's official documentation or contact authorized distributors.