Gates 21849 Radiator Coolant Hose - Lower

Gates 21849 Molded Coolant Hose Overview

The Gates 21849 molded coolant hose is a radiator coolant hose built to OEM-quality specifications for select Chevrolet and GMC applications. It is formed from EPDM and shaped for lower coolant routing, helping maintain proper coolant flow in the engine cooling system.

Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant applications with application-specific fitment. For buyers replacing a lower radiator hose on a Chevrolet P30 or GMC P3500, this part number provides a direct replacement option for the listed vehicles.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 21849
• Part type: radiator coolant hose
• Material: EPDM
• Molded construction for formed routing
• End inside diameter: 1.75 in. (44 mm) at both ends
• Centerline length: 23.4 in. (594 mm)
• Contains spring: No
• Quick connect fittings: 0
• Position: lower

Detailed Description

Gates 21849 is a molded lower coolant hose engineered for vehicles that require a shaped hose path rather than a straight universal hose. The EPDM construction is suited for coolant service, while the molded profile supports proper routing in tight engine compartments. This hose is listed for 1985-1992 Chevrolet P30 lower applications and 1985-1992 GMC P3500 lower applications, with additional 1993 coverage for specific configurations noted in the fitment data.

This part cross-references Dayco 71553 and FEL-PRO 61708 for the same application. If you are replacing a lower radiator hose on a Chevrolet P30 or GMC P3500, Gates 21849 is a direct-fit reference to verify against the original hose shape and dimensions.

What It Helps Address

• Cracked or aged lower radiator hose material
• Coolant leaks at the hose body
• Improper hose routing from a previous replacement
• Softening or swelling from heat and coolant exposure
• Restricted coolant transfer caused by a deteriorated hose

Installation Notes and Tips

Confirm the original hose shape, end diameters, and centerline length before installation. Match the lower position and review the listed notes for 1993 Chevrolet P30 and 1993 GMC P3500 applications, including exclusions for cutaway HD and motor home configurations. Inspect hose clamps, mating necks, and nearby cooling system components before installing the new hose.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for listed vehicle applications. The Gates Molded Coolant Hose line is built to cover a broad range of replacement cooling-system needs, including lower radiator hose service on Chevrolet P30 and GMC P3500 models.