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Gates 21821 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 21821
The Gates Molded Coolant Hose 21821 is designed specifically for Jeep Cherokee, Comanche, and Wagoneer models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance and longevity in your vehicle's cooling system.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Molded design for precise fit and secure installation
- End 1 inside diameter: 1.19 inches (30 mm)
- End 2 inside diameter: 1.44 inches (37 mm)
- Centerline length: 21.9 inches (556 mm)
- Contains no internal spring for flexibility
- Compatible with Jeep Cherokee, Comanche, and Wagoneer models
About the Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle applications. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or premature wear. The 21821 part is a molded radiator coolant hose engineered to meet the exact specifications required by Jeep vehicles, ensuring proper coolant flow and system integrity.
Detailed Product Description
This radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded construction provides a precise fit with end diameters of 1.19 inches (30 mm) and 1.44 inches (37 mm), accommodating the specific connections in the cooling system. With a centerline length of 21.9 inches (556 mm), the hose is designed to maintain optimal coolant circulation without kinks or restrictions. The absence of an internal spring allows for flexibility while maintaining structural integrity.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses in Jeep Cherokee, Comanche, and Wagoneer
- Resolving coolant leaks caused by hose degradation or improper fit
- Preventing overheating due to restricted coolant flow
- Eliminating hose collapse or deformation under pressure
- Maintaining system pressure and coolant circulation efficiency
Installation Notes and Tips
Ensure the engine is cool before removing the old hose to avoid burns. Verify that the hose ends match the specified inside diameters (1.19 inches and 1.44 inches) for a secure fit. Use appropriate clamps to secure the hose without over-tightening, which can damage the EPDM material. Inspect adjacent components for wear or damage during installation to maintain overall cooling system health.
Quality Assurance and Warranty
Gates Molded Coolant Hose 21821 is manufactured to meet OEM standards for durability and performance. The EPDM material and molded design contribute to a reliable service life under normal operating conditions. While specific warranty details are not provided, Gates products typically adhere to industry quality controls to ensure customer satisfaction and part longevity.
| Brand | Gates |
|---|---|
| Part Number | 21821 |
| Position | Molded Coolant Hose, Upper |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 21.9 |
| Centerline Length | 556 |
| Contains Spring | No |
| End 1 Inside Diameter | 1.19 |
| End 1 Inside Diameter | 30 |
| End 2 Inside Diameter | 1.44 |
| End 2 Inside Diameter | 37 |
| Material | EPDM |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1994 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1993 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1992 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1992 | Jeep | Comanche | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1991 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1991 | Jeep | Comanche | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1990 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1990 | Jeep | Comanche | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1990 | Jeep | Wagoneer | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1989 | Jeep | Cherokee | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1989 | Jeep | Comanche | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; Molded Coolant Hose |
| 1989 | Jeep | Wagoneer | 4.0L | L6 | GAS | Upper | Not compatible with vehicles equipped with AC.; 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.