Dayco 70654 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 70654

The Dayco Curved Radiator Hose 70654 is designed to provide reliable coolant flow for select Ford, Jeep, and Mercury vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in radiator cooling systems.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 1/4 inch and 1 1/2 inch for precise fitment
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 11 inches for proper routing in engine bays
• Compatible with Ford, Jeep, and Mercury models including Bobcat, Capri, CJ5, CJ7, Courier, Pinto, and Scrambler

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on delivering hoses with specific bends and dual inside diameters to accommodate unique radiator and engine configurations. This product line is engineered to meet stringent SAE standards, ensuring compatibility and durability for various automotive cooling applications. The 70654 part exemplifies this line by combining material quality and precise dimensions tailored for multiple vehicle models.

Technical Description and Specifications

The Dayco 70654 radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a dual inside diameter design, measuring 1 1/4 inch on one end and 1 1/2 inch on the other, allowing it to connect different sized fittings securely. The hose is black in color and has a trunk height of 11 inches, suitable for routing in engine compartments of compatible vehicles. It does not include a heat shield or protective sleeve, focusing on core durability and fitment. Compliance with SAE J20R4 Class D-1 and SAE J1684 Type EC standards ensures it meets industry requirements for coolant hoses.

Applications and Problem Solving

• Replaces worn or cracked radiator coolant hoses in Ford Bobcat and Capri models
• Restores proper coolant flow in Jeep CJ5 and CJ7 vehicles
• Prevents coolant leaks in Mercury Courier and Pinto engines
• Addresses hose fitment issues due to varying radiator and engine inlet sizes
• Supports cooling system maintenance for Jeep Scrambler models

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify the hose ends match the radiator and engine inlet diameters (1 1/4 inch and 1 1/2 inch) for proper fit. Use appropriate clamps to secure the hose and check for leaks after installation. The hose’s curved design facilitates routing in tight engine compartments common to the listed vehicle models.

Quality Assurance

Dayco manufactures the 70654 radiator hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring reliable performance under typical operating conditions. While specific warranty details are not provided, Dayco’s adherence to industry specifications supports product durability and compatibility with Ford, Jeep, and Mercury vehicles.