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Gates 21721 Radiator Coolant Hose - Upper
| Brand | Gates 21721 |
|---|---|
| Position | Upper |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 17.9 |
| Centerline Length | 455 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.75 |
| End 1 Inside Diameter | 44 |
| End 2 Inside Diameter | 2 |
| End 2 Inside Diameter | 51 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
| Product line | Molded Coolant Hose |
| Fits | Ford · 50 vehicles |
OEM-quality specifications. Built for coolant applications with a molded EPDM construction.
Molded design. Helps match the hose shape needed for a precise replacement.
Gates molded hose line. A comprehensive replacement range for radiator hose needs.
Cross-references Anchor 2125, Anchor 8411 and Continental 61326 for the same application. See all 27.
Gates 21721 Molded Coolant Hose Overview
The Gates 21721 molded coolant hose is an OE-style radiator coolant hose for upper cooling-system routing. Built from EPDM and formed to the correct molded shape, it supports direct replacement on select Ford truck applications where the original hose follows a specific bend and length.
Compatible With 1983-1994 Ford F-250 and 1983-1994 Ford F-350 upper hose applications, plus 1984 Ford F-150 upper hose applications, this Gates Molded Coolant Hose line is built for common upper, lower, bypass, heater, and related coolant routing needs. The 21721 part number is used where a molded replacement is required for proper fit and hose alignment.
Key Features
- EPDM construction for coolant-system service
- Molded design for the correct hose routing
- End 1 inside diameter: 1.75 in. (44 mm)
- End 2 inside diameter: 2 in. (51 mm)
- Centerline length: 17.9 in. (455 mm)
- No spring and no quick-connect fittings
- Upper-position radiator coolant hose application
- Gates 21721 replacement part number
Product Details
Gates Molded Coolant Hose part number 21721 is a formed EPDM hose made to match OEM-style coolant routing on select Ford F-150, Ford F-250, and Ford F-350 trucks. The molded shape helps maintain the intended path between connection points, which is important on upper radiator and heater-related hose runs where straight hose cannot duplicate the original bend. This hose line is engineered for replacement use across multiple coolant applications, reducing the need to source a dealer-only hose for the same vehicle fitment.
This part cross-references Dayco 71556 for the same application.
What It Helps Fix
- Cracked or split upper radiator hose sections
- Collapsed or softened coolant hose material
- Incorrect hose routing after a previous repair
- Coolant leaks at worn hose connection points
- Fitment issues caused by non-molded replacement hose shapes
Installation Notes
Verify the hose routing, end diameters, and centerline length before installation. This hose is listed for upper-position applications on 1983-1994 Ford F-250 and Ford F-350, and 1984 Ford F-150 models with the noted cooling-system configurations. Inspect clamps, necks, and adjoining coolant components for wear before installing the replacement hose.
Quality Assurance
Gates supplies molded coolant hoses to OEM-quality specifications for replacement cooling-system service. The 21721 is part of Gates’ molded coolant hose line, which covers upper, lower, bypass, heater, and other coolant hose applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1994 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1994 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1994 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1994 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1993 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1993 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1993 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1993 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1992 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1992 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1992 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1992 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1991 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1991 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1991 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1991 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1990 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1990 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1990 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1990 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1989 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1989 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1989 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1989 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1988 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1988 | Ford | F-250 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1988 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1988 | Ford | F-350 | 7.3L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1987 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1987 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1987 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1987 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1986 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1986 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1986 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1986 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1985 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1985 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1985 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1985 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1984 | Ford | F-150 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1984 | Ford | F-150 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1984 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1984 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1984 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1984 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1983 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1983 | Ford | F-250 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
| 1983 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Coolant Hose |
| 1983 | Ford | F-350 | 6.9L | V8 | DIESEL | Upper | W/O A.C.; W/X.C.; W/31" Wide Rad.; Molded Coolant Hose |
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