Dayco 70287 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Overview of Dayco Curved Radiator Hose 70287

The Dayco Curved Radiator Hose 70287 is designed to provide reliable coolant flow for select Cadillac, Chrysler, and Pontiac vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color with a curved design for precise fitment
• Single inside diameter hose with 1 3/4 inch ends on both sides
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 12 1/2 inches for proper routing

Detailed Product Description

The Dayco Curved Radiator Hose line focuses on delivering hoses that match exact OEM specifications for coolant systems. This particular hose, part number 70287, is made from EPDM (ethylene propylene diene monomer) rubber, known for its resistance to heat, ozone, and coolant chemicals. The hose features a single inside diameter of 1 3/4 inches on both ends, ensuring a secure and leak-free connection. Its curved shape is designed to fit specific radiator coolant pathways without kinking or collapsing, maintaining optimal coolant flow.

Compliant with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, this hose meets industry requirements for durability and performance. The black color and 12 1/2 inch trunk height allow for easy identification and proper installation within the engine bay.

Compatible Vehicles and Applications

This radiator coolant hose is compatible with a range of Cadillac, Chrysler, and Pontiac models, including but not limited to:

• Cadillac DeVille, Eldorado, and Town & Country
• Chrysler Imperial, Newport, and New Yorker
• Pontiac Bonneville, Catalina, Firebird, Grand Prix, LeMans, and Tempest
• Also fits Chrysler 300 and other specified models

Common Issues Addressed by This Radiator Hose

• Replacement of cracked or leaking radiator hoses
• Resolving coolant leaks causing engine overheating
• Fixing hoses that have become brittle or swollen due to age
• Ensuring proper coolant flow with a hose that matches OEM curvature
• Preventing hose collapse under pressure or heat stress

Installation Notes and Tips

• Verify hose dimensions and curvature against the original part before installation
• Ensure clamps are properly tightened to prevent leaks but avoid over-tightening
• Inspect surrounding components for wear or damage during replacement
• Flush the cooling system if contamination or debris is present
• Allow the engine to cool before removing the old hose to avoid burns

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70287 to meet strict SAE standards, ensuring reliable performance in demanding automotive environments. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by manufacturer support for defects in material and workmanship.