Gates 21674 Radiator Coolant Hose - Lower

Gates 21674 Molded Coolant Hose Overview

The Gates 21674 molded coolant hose is a radiator coolant hose built for lower hose applications on select Chrysler, Dodge, and Plymouth vehicles. Made from EPDM and formed to OEM-style dimensions, it supports a precise coolant routing path for service replacement on vehicles such as the Chrysler Daytona and Dodge Daytona.

Gates Molded Coolant Hose parts are engineered for upper, lower, bypass, heater, and other coolant routing needs, giving technicians a direct replacement option for radiator hose service. The molded shape helps match the original hose path, while the 1.25-inch to 1.5-inch end diameters and 27.3-inch centerline length provide the dimensional profile needed for listed applications.

Key Features

• Brand: Gates
• Part number: 21674
• Part type: radiator coolant hose
• Material: EPDM
• Molded construction for OE-style routing
• End 1 inside diameter: 1.25 in. (32 mm)
• End 2 inside diameter: 1.5 in. (38 mm)
• Centerline length: 27.3 in. (693 mm)
• No spring included
• No quick-connect fittings

Detailed Description

Gates 21674 is a molded lower coolant hose for select 1987-1993 Chrysler, Dodge, and Plymouth vehicles, including lower hose applications on the Chrysler Daytona, Dodge Daytona, Dodge Spirit, Plymouth Sundance, Chrysler LeBaron, Chrysler Shadow, Dodge Shadow, Chrysler Phantom, Dodge Lancer, Chrysler New Yorker, Chrysler Town & Country, and Dodge 600. This part number is also referenced in the aftermarket for the same application, including Monroe Shocks & Struts 172286 and 182286.

As part of the Gates Molded Coolant Hose line, this hose is built to replace common OE-style radiator hose routing without requiring a universal bend or field shaping. The EPDM construction is suited to coolant service, and the molded profile helps maintain the original hose path in lower radiator hose locations. Gates 21674 is a direct-fit service part for vehicles that require the listed molded lower hose configuration, including Chrysler Daytona and Dodge Daytona applications.

Common Cooling System Problems It Can Address

• Cracked or split lower radiator hose
• Coolant leaks at the hose body or ends
• Collapsed or misshaped hose routing
• Restricted coolant flow from aged hose material
• Service replacement for worn molded hose assemblies

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length against the removed part before installation. Confirm the vehicle uses the listed lower hose application and check for clearance around nearby components, especially on turbo/intercooler-equipped models noted in the fitment data. Inspect hose clamps, mating necks, and coolant condition during service, and replace any damaged sealing surfaces before refilling the system.

Quality Assurance

Gates is a recognized supplier of replacement cooling system components, and this molded coolant hose is manufactured to OEM-quality specifications for the listed applications. The molded design and EPDM construction support consistent fitment for radiator hose replacement on compatible Chrysler, Dodge, and Plymouth models.