Gates 21281 Radiator Coolant Hose - Lower or Upper

Gates 21281 Molded Coolant Hose Overview

Gates 21281 is a molded radiator coolant hose built for upper and lower cooling-system applications, plus heater and bypass routing where the vehicle calls for an OE-style formed hose. Made from EPDM, it follows OEM-quality specifications to support a precise replacement on vehicles such as the Chevrolet Cavalier, Pontiac Grand Am, and Dodge Caravan.

The Gates Molded Coolant Hose line is engineered as a broad replacement solution for radiator hose service, helping reduce the time spent sourcing dealer-only parts. This molded hose measures 1.25 in. inside diameter at both ends and 14.6 in. centerline length for the specified applications.

• EPDM construction for coolant-system service
• Molded hose shape for application-specific routing
• 1.25 in. inside diameter at both ends
• 14.6 in. centerline length
• Fits upper and lower coolant hose positions listed below
• Gates part number 21281 for direct catalog lookup

Product Line Details

Gates Molded Coolant Hose products are formed to match the routing and shape required by specific cooling and heater hose applications. This line covers a wide range of radiator and HVAC-related hose replacements, making it a practical choice when the original hose follows a molded path rather than a straight universal hose.

Vehicle Fitment

• Fits 1996 Chevrolet Lumina APV, upper; Preferred Hose; Cut to fit; Molded Coolant Hose
• Fits 1996 Oldsmobile Silhouette, upper; Preferred Hose; Cut to fit; Molded Coolant Hose
• Fits 1996 Pontiac Trans Sport, upper; Preferred Hose; Cut to fit; Molded Coolant Hose
• Fits 1994-1995 Chevrolet Corsica, upper; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1993-1995 Dodge Caravan, upper; W/O H.D. Cool.; Molded Coolant Hose
• Fits 1993-1995 Dodge Colt, lower; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1993-1995 Dodge Grand Caravan, upper; W/O H.D. Cool.; Molded Coolant Hose
• Fits 1993-1995 Plymouth Grand Voyager, upper; W/O H.D. Cool.; Molded Coolant Hose
• Fits 1993-1995 Plymouth Voyager, upper; W/O H.D. Cool.; Molded Coolant Hose
• Fits 1986-1988 Buick Skylark, upper; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1988 Oldsmobile Cutlass Calais, upper; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1985-1988 Pontiac Grand Am, upper; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1981-1987 Isuzu Pickup, upper; Molded Coolant Hose
• Fits 1985-1987 Oldsmobile Calais, upper; Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose
• Fits 1983-1986 Buick Skyhawk, upper; Molded Coolant Hose
• Fits 1982-1986 Cadillac Cimarron, upper; Molded Coolant Hose
• Fits 1983-1986 Chevrolet Cavalier, upper; Molded Coolant Hose
• Fits 1983-1986 Oldsmobile Firenza, upper; Molded Coolant Hose
• Fits 1986 Pontiac Sunbird, upper; Molded Coolant Hose
• Fits 1984 Pontiac J2000 Sunbird, upper; Molded Coolant Hose
• Fits 1983 Pontiac J2000, upper; Molded Coolant Hose
• Fits 1982 Buick Skyhawk, upper; HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
• Fits 1982 Buick Skyhawk, upper; W/O A.C.; W/22", 25" Wide Rads.; Molded Coolant Hose
• Fits 1982 Chevrolet Cavalier, upper; HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
• Fits 1982 Chevrolet Cavalier, upper; W/O A.C.; W/22", 25" Wide Rads.; Molded Coolant Hose
• Fits 1982 Oldsmobile Firenza, upper; HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
• Fits 1982 Oldsmobile Firenza, upper; W/O A.C.; W/22", 25" Wide Rads.; Molded Coolant Hose
• Fits 1982 Pontiac J2000, upper; HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose
• Fits 1982 Pontiac J2000, upper; W/O A.C.; W/22", 25" Wide Rads.; Molded Coolant Hose

Common Uses

• Replacing a cracked or leaking upper radiator hose
• Restoring coolant flow in a molded hose routing
• Servicing heater hose or HVAC-related coolant routing listed in fitment
• Correcting hose collapse, soft spots, or age-related swelling
• Replacing a hose that no longer matches the original formed path

Installation Notes

Verify hose routing, end diameters, and centerline length against the removed part before installation. This hose is molded and may require trimming for the listed cut-to-fit applications. Confirm the vehicle’s cooling-system configuration, including A/C and heavy-duty cooling notes where shown in fitment, before ordering.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for direct replacement use in the listed applications. Part number 21281 is cataloged for radiator coolant hose service across multiple makes and models, including Chevrolet Cavalier, Pontiac Grand Am, and Dodge Caravan applications.

This part cross-references Dayco 71630 for the same application.