Gates 51488 Radiator Coolant Hose - Upper

Gates 51488 Molded Coolant Hose Overview

The Gates 51488 molded coolant hose is a direct-fit radiator coolant hose for select Mercedes-Benz applications. Built with EPDM, plastic, and steel, it follows OE-style routing and includes integrated modular components for the upper cooling circuit.

Compatible with 2006-2007 Mercedes-Benz C230, upper; 2006-2007 Mercedes-Benz C280, upper; and 2006 Mercedes-Benz C350, upper, this molded coolant hose supports a precise replacement for the factory hose assembly.

Key Features

• Molded coolant hose for the radiator cooling system
• OE-style modular design with integrated branch and quick-connect fittings
• Constructed from EPDM, plastic, and steel for cooling-system service
• Centerline length: 21.5 in. (546 mm)
• End inside diameters: 1.3 in. (33 mm), 1.4 in. (36 mm), and 0.3 in.
• Contains 2 quick-connect fittings
• Direct replacement part number: Gates 51488

Product Details

Gates Molded Coolant Hose line focuses on application-specific coolant hose assemblies that mirror OEM routing and integrated features. The 51488 hose includes a branch and quick-connect connections to match the original upper hose layout on select Mercedes-Benz C230, C280, and C350 models. This design helps maintain proper coolant flow path and factory-style fitment in the engine bay.

This part cross-references Dayco 73119 for the same application.

What This Hose Helps Address

• Cracked or aged upper radiator hose material
• Coolant leaks at molded hose sections or connector points
• Improper fit from universal hose replacements
• Damaged quick-connect interfaces on the original hose assembly
• Cooling-system service needs on select Mercedes-Benz C230, C280, and C350 models

Installation Notes and Tips

Verify the vehicle’s year, model, and upper hose routing before installation. Inspect mating connectors, seals, and nearby cooling-system components for wear or contamination before transferring the hose into service. Confirm that all quick-connect fittings are fully seated and that the hose follows the original routing without twist or tension.

Quality Assurance

Gates is a recognized aftermarket supplier in modular coolant hose assemblies, and this hose is manufactured to application-specific OE-style specifications for the listed Mercedes-Benz vehicles.