Gates 21777 Radiator Coolant Hose - Lower

Gates 21777 Molded Coolant Hose

Gates 21777 is a molded radiator coolant hose built to OEM-quality specifications for lower coolant and heater routing. Made from EPDM, it follows the factory-shaped path for a precise replacement on select Chrysler, Dodge, and Plymouth vehicles.

Compatible with lower radiator and HVAC coolant hose applications on 1989-1995 Chrysler LeBaron, Dodge Shadow, Dodge Spirit, Plymouth Acclaim, Plymouth Sundance, Chrysler Daytona, Dodge Daytona, Chrysler Dynasty, and Chrysler New Yorker.

Key Features

• EPDM construction for coolant-system durability
• Molded shape for factory-style routing and fit
• End inside diameters: 1.25 in. (32 mm) and 1.38 in. (35 mm)
• Centerline length: 27.2 in. (691 mm)
• No spring, no modular sections, and no quick-connect fittings
• Direct replacement for lower radiator coolant hose and HVAC coolant hose applications

Product Details

The Gates Molded Coolant Hose line is built for radiator, bypass, heater, and other coolant-system applications where a formed hose is required. Part number 21777 uses a molded EPDM design to match the original hose path and connection sizes, helping maintain proper coolant flow and routing in the engine bay. This part cross-references Dayco 71424 for the same application.

For fitment-based searches, this hose is a direct replacement for lower coolant hose service on Chrysler LeBaron, Dodge Shadow, and Plymouth Acclaim models, along with other listed Chrysler, Dodge, and Plymouth vehicles from 1989-1995.

What It Helps Address

• Cracked or aged lower radiator hose material
• Coolant leaks at the hose body or ends
• Incorrect hose routing from a non-molded replacement
• Fitment issues caused by mismatched end diameters
• Service delays when replacing a factory-shaped coolant hose

Installation Notes

Verify the hose shape, end diameters, and centerline length against the removed part before installation. Confirm lower-position routing and inspect adjoining clamps, necks, and coolant connections for wear or corrosion. Drain coolant as needed, then route the hose without twisting so the molded shape follows the original path.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for the listed applications. The brand’s molded hose line is offered as a broad replacement option for radiator and heater hose service across multiple vehicle platforms.