OE Quality
60-Day Returns

Gates 21057 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 21057
The Gates Molded Coolant Hose 21057 is designed for reliable cooling system performance in select Chevrolet, Geo, Pontiac, Subaru, and Suzuki vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for models like the Firefly, Metro, Sprint, Standard, and Swift.
- Constructed from high-quality EPDM material for heat and chemical resistance
- Molded design for precise fit and secure installation
- Centerline length of 18.1 inches (460 mm) for accurate routing
- Inside diameter of 1 inch (25 mm) on both ends for standard coolant flow
- Does not contain a spring or quick connect fittings, simplifying maintenance
Detailed Product Description
The Gates Molded Coolant Hose 21057 belongs to the Molded Coolant Hose product line, which focuses on delivering hoses with exact molded shapes to match specific vehicle cooling system requirements. This hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The molded construction ensures a precise fit, reducing the risk of leaks and improving coolant flow efficiency. With a centerline length of 18.1 inches (460 mm) and an inside diameter of 1 inch (25 mm) at both ends, this hose is designed to fit seamlessly in the cooling circuits of Chevrolet Firefly, Geo Metro, Pontiac Sprint, Subaru Standard, and Suzuki Swift models.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in compatible vehicles
- Prevention of coolant leaks that can lead to engine overheating
- Restoration of proper coolant flow to maintain engine temperature regulation
- Addressing hose deformation or swelling caused by heat exposure
- Eliminating issues related to improper hose fit or routing in cooling systems
Installation Notes and Tips
- Ensure the engine is cool before removing the old hose to avoid burns
- Check hose clamps and replace if corroded or damaged for a secure seal
- Verify the hose orientation matches the molded shape for proper fitment
- Inspect surrounding components for wear or damage during installation
- Use coolant compatible with the vehicle manufacturer’s specifications
Quality Assurance and Warranty
Gates Molded Coolant Hose 21057 is manufactured to meet stringent quality standards for durability and performance. The EPDM material and molded design contribute to a reliable, long-lasting replacement part. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in material and workmanship. Consult the product packaging or manufacturer for exact warranty terms.
| Brand | Gates |
|---|---|
| Part Number | 21057 |
| Position | Molded Coolant Hose, Upper |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 18.1 |
| Centerline Length | 460 |
| Contains Spring | No |
| End 1 Inside Diameter | 1 |
| End 1 Inside Diameter | 25 |
| End 2 Inside Diameter | 1 |
| End 2 Inside Diameter | 25 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 42 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2000 | Chevrolet | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 2000 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1999 | Chevrolet | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1999 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1998 | Chevrolet | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1998 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1998 | Suzuki | Swift | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1997 | Geo | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1997 | Geo | Metro | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1997 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1997 | Pontiac | Firefly | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1997 | Suzuki | Swift | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Geo | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Geo | Metro | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Pontiac | Firefly | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1996 | Suzuki | Swift | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Geo | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Geo | Metro | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Pontiac | Firefly | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1995 | Suzuki | Swift | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1994 | Geo | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1994 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1994 | Pontiac | Firefly | 1.3L | L4 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1993 | Geo | Metro | 1.0L | L3 | GAS | Upper | Optional Hose; Cut to fit; Molded Coolant Hose |
| 1992 | Chevrolet | Sprint | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1992 | Geo | Metro | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1992 | Suzuki | Swift | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Chevrolet | Sprint | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Geo | Metro | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1991 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Chevrolet | Sprint | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Geo | Metro | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1990 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Chevrolet | Sprint | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Geo | Metro | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1989 | Pontiac | Firefly | 1.0L | L3 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1979 | Subaru | Standard | 1.6L | H4 | GAS | Upper | Molded Coolant Hose |
| 1978 | Subaru | Standard | 1.6L | H4 | GAS | Upper | Molded Coolant Hose |
| 1977 | Subaru | Standard | 1.6L | H4 | GAS | Upper | Molded Coolant Hose |
| 1976 | Subaru | Standard | 1.4L | H4 | GAS | Upper | W/Calif. Emission System; Molded Coolant Hose |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.