Gates 21783 Radiator Coolant Hose - Lower

Overview

Gates 21783 is a molded radiator coolant hose built for coolant routing in the engine cooling system. It is shaped to match the application and uses OEM-quality specifications for a direct replacement-style repair on the Mercedes-Benz 190E.

Key Features

• Molded hose design for application-specific routing.
• EPDM and plastic construction for coolant service.
• 14.1-inch centerline length with 1.19-inch and 1.34-inch end inside diameters.
• No spring, no modular sections, and no quick-connect fittings.
• Fits 1987-1993 Mercedes-Benz 190E, lower.

Detailed Description

This Gates molded coolant hose, part number 21783, is engineered for lower coolant hose service where a formed shape is needed to follow the factory routing. The molded profile helps maintain proper hose alignment and connection geometry, while the EPDM and plastic construction is suited to standard radiator coolant applications. For buyers servicing a Mercedes-Benz 190E, Gates 21783 provides a replacement option that matches the application-specific dimensions rather than a universal cut-to-fit hose. Gates 21783 is part of the Molded Coolant Hose line, which covers upper, lower, bypass, heater, and other coolant hose applications with OEM-quality specifications.

Common Uses

• Replacing a cracked or softened lower radiator coolant hose.
• Restoring coolant flow after hose swelling or collapse.
• Addressing leaks at the hose ends or along the molded section.
• Correcting fitment issues caused by an incorrect universal hose.

Installation Notes

Verify hose routing, end diameters, and centerline length before installation. Inspect mating necks and clamps for wear or corrosion, and confirm the hose follows the original molded path without twisting. This part fits 1987-1993 Mercedes-Benz 190E, lower, and the application-specific shape should be matched to the vehicle’s factory layout.

Quality Assurance

Gates positions its Molded Coolant Hose line as an OEM-quality replacement range for multiple coolant system applications. Part number 21783 is cross-referenced with Anchor 8473 and Rein CHR0121R for the same application.