Gates 51435 Radiator Coolant Hose - Upper

Gates 51435 Molded Coolant Hose Overview

Gates 51435 is a molded radiator coolant hose built for specific Mercedes-Benz upper cooling system applications. It follows OEM-style routing and integrates the required quick-connect fittings for a direct replacement on select S450, S550, and CL550 models.

The Gates Molded Coolant Hose line focuses on application-specific fitment and OE-style integrated components. This hose uses EPDM, plastic, and steel construction, with molded shaping and quick-connect ends to match the original cooling system layout.

Key Features

• Part number: 51435
• Brand line: Gates Molded Coolant Hose
• Upper radiator coolant hose for select Mercedes-Benz applications
• Molded design for factory-style hose routing
• EPDM, plastic, and steel construction
• Centerline length: 13.75 in. (349 mm)
• End 1 inside diameter: 1.4 in. (36 mm)
• End 2 inside diameter: 1.4 in. (36 mm)
• Includes 2 male quick connectors and 2 Henn quick connectors
• No spring included

Detailed Description

Gates 51435 is a molded coolant hose engineered for upper radiator hose service on select Mercedes-Benz S450, S550, and CL550 vehicles. It is built to follow the original hose path and uses integrated quick-connect fittings to match the OE-style cooling system connection points. For buyers searching for a Mercedes-Benz S550 upper coolant hose or a molded coolant hose for a 2007-2011 Mercedes-Benz S550, this part number provides a direct-fit replacement option.

This Gates molded coolant hose is listed for 2008-2011 Mercedes-Benz S450, 2007-2011 Mercedes-Benz S550, and 2009-2010 Mercedes-Benz CL550 upper positions. This part cross-references Rein CHR0670 for the same application.

Common Cooling System Issues It May Address

• Cracked or split upper radiator hose
• Coolant leaks at quick-connect hose ends
• Heat-related hose swelling or softening
• Improper hose routing after replacement
• Loss of cooling system pressure from worn hose connections

Installation Notes and Tips

Verify the vehicle year, model, and upper hose routing before installation. Confirm that the quick-connect fittings match the original connection style on the vehicle, and inspect adjoining coolant system components for wear, residue, or damage before reassembly. Proper seating at both ends is important for sealing and stable coolant flow.

Quality Assurance

Gates manufactures modular coolant hoses for specific applications with OE-style integrated components such as branches, quick-connectors, sensors, and restrictors where required by the original design. Part number 51435 is built to align with that application-specific approach for Mercedes-Benz cooling system service.