Dayco 70840 Radiator Coolant Hose - Filler Tank, Lower - Pipe To Engine or Upper

Overview of Dayco Curved Radiator Hose 70840

The Dayco Curved Radiator Hose 70840 is designed to provide reliable coolant flow for various vehicle models including Chevrolet, Dodge, Mitsubishi, Pontiac, Subaru, and Suzuki. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black single inside diameter hose with 1 1/16 inch diameter on both ends
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height measures 19 1/2 inches for precise fitment
• Compatible with multiple makes and models including Mitsubishi Mirage and Suzuki Swift

Detailed Product Description

The Dayco Curved Radiator Hose 70840 is a single inside diameter hose designed to maintain efficient coolant circulation within the radiator system. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose supports engine cooling system integrity. Both ends of the hose have an inside diameter of 1 1/16 inches, ensuring a secure connection to radiator fittings. The hose does not include a heat shield or protective sleeve, which is typical for this type of radiator coolant hose. Its trunk height of 19 1/2 inches allows it to fit specific vehicle configurations accurately.

About the Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses shaped to accommodate specific engine layouts and cooling system designs. This product line emphasizes precise fitment and material durability, making it suitable for a range of vehicles requiring curved hose configurations. The 70840 part number is part of this line, providing a tailored solution for the listed vehicle makes and models.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses
• Prevention of coolant leaks due to hose degradation
• Maintaining proper coolant flow to avoid engine overheating
• Addressing fitment issues in Chevrolet Colt and Dodge Firefly cooling systems
• Ensuring compatibility with Mitsubishi Forsa and Subaru Standard radiator connections

Installation Notes and Tips

• Verify hose dimensions and fitment with your vehicle’s specifications before installation
• Ensure all clamps and fittings are secure to prevent leaks
• Inspect surrounding components for wear or damage during replacement
• Replace coolant and bleed the system after hose installation to remove air pockets

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70840 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for radiator hoses. The EPDM material provides durability against heat and coolant exposure. Warranty details should be confirmed with the distributor or vehicle manufacturer, as Dayco typically offers coverage against manufacturing defects.