Dayco 71402 Radiator Coolant Hose - Lower

Overview

Dayco 71402 is a curved radiator coolant hose built for lower cooling-system routing on select Mercedes-Benz applications. It uses EPDM construction and a dual I.D. design to match the specified hose connection sizes while maintaining a formed shape for proper routing.

Key Features

• EPDM rubber construction for coolant-system service.
• Dual I.D. hose design with 1 1/2 in. and 1 5/8 in. end diameters.
• Curved profile for lower hose routing.
• Black finish for a clean OE-style appearance.
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications.

Detailed Description

This Dayco radiator coolant hose is engineered as a formed replacement for lower hose applications on 1986-1991 Mercedes-Benz 420SEL, 560SEC, and 560SEL models. The curved shape helps maintain the intended routing path, while the EPDM material is suited for coolant exposure and everyday thermal cycling. Dayco 71402 is a practical choice when replacing a worn or deteriorated lower radiator hose on these Mercedes-Benz vehicles.

Dayco’s Curved Radiator Hose line focuses on formed coolant hoses that follow the original routing geometry more closely than universal hose stock. For buyers looking for a Mercedes-Benz 420SEL lower radiator hose or a Mercedes-Benz 560SEL lower radiator hose, this product line provides a direct-fit style solution with the correct molded shape and connection sizing.

Common Uses

• Replacing a cracked or softened lower radiator hose.
• Restoring coolant flow after hose swelling or collapse.
• Addressing leaks at the hose ends or along the hose body.
• Correcting routing issues caused by an improperly shaped hose.

Installation Notes

Verify the end diameters and routing before installation to confirm Dayco 71402 matches the vehicle’s lower hose configuration. Inspect adjoining fittings, clamps, and coolant condition before installing the new hose. This part cross-references Gates 21655 and Duralast C71402 for the same application.

Quality Assurance

Dayco 71402 is built to SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator hose service.