OE Quality
60-Day Returns

Gates 20816 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 20816
The Gates Molded Coolant Hose 20816 is designed specifically for Chevrolet Corvette models, providing reliable radiator coolant flow. Constructed from durable EPDM material, this molded radiator coolant hose ensures consistent performance under various operating conditions.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Molded design for precise fit and secure connections
- Centerline length of 21.2 inches (538 mm) for exact fitment
- Inside diameter of 1.5 inches (38 mm) on both ends
- Compatible with Chevrolet Corvette radiator coolant systems
Detailed Product Description
The Gates Molded Coolant Hose 20816 is engineered to meet the specific cooling system requirements of Chevrolet Corvette vehicles. Its EPDM construction offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity over time. The molded design eliminates the need for additional fittings or clamps, ensuring a secure and leak-free connection. With an inside diameter of 1.5 inches (38 mm) on both ends and a centerline length of 21.2 inches (538 mm), this hose fits precisely within the cooling system layout of the Corvette, supporting efficient coolant flow and engine temperature regulation.
Applications and Common Issues Addressed
- Replacement of worn or cracked radiator coolant hoses in Chevrolet Corvette
- Prevention of coolant leaks caused by hose degradation
- Restoration of proper coolant flow to avoid engine overheating
- Elimination of hose collapse or swelling under pressure
- Maintenance of cooling system integrity for optimal engine performance
Installation Notes and Tips
Ensure the engine is cool before removing the old coolant hose to prevent burns. Verify the hose dimensions, including inside diameter and length, match the Gates Molded Coolant Hose 20816 specifications. Use appropriate clamps to secure the hose ends if required by the vehicle’s cooling system design. Inspect adjacent components for wear or damage during installation to maintain overall system reliability.
Quality Assurance and Warranty
Gates Molded Coolant Hose 20816 is manufactured to meet industry standards for durability and performance. The EPDM material and molded construction contribute to long service life under normal operating conditions. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to ensure consistent reliability in automotive cooling applications.
| Brand | Gates |
| Part Number | 20816 |
| Position | Molded Coolant Hose, Upper |
| Material | Epdm |
| End 1 Inside Diameter | 1.5 |
| End 1 Inside Diameter | 38 |
| End 2 Inside Diameter | 1.5 |
| End 2 Inside Diameter | 38 |
| Contains Spring | No |
| Centerline Length | 21.2 |
| Centerline Length | 538 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1974 | Chevrolet | Corvette | 7.4L | V8 | GAS | Upper | Molded Coolant Hose | |
| 1973 | Chevrolet | Corvette | 7.4L | V8 | GAS | Upper | Molded Coolant Hose | |
| 1972 | Chevrolet | Corvette | 7.4L | V8 | GAS | Upper | W/Std. Cool.; W/O Hi Perf. Eng.; Molded Coolant Hose | |
| 1971 | Chevrolet | Corvette | Manual | 7.4L | V8 | GAS | Upper | W/Std. Cool.; W/O Hi Perf. Eng.; Molded Coolant Hose |
| 1969 | Chevrolet | Corvette | 7.0L | V8 | GAS | Upper | W/Hi Perf. Eng.; Molded Coolant Hose | |
| 1969 | Chevrolet | Corvette | 7.0L | V8 | GAS | Upper | W/Spec. Hi Perf. Eng.; Molded Coolant Hose | |
| 1969 | Chevrolet | Corvette | 7.0L | V8 | GAS | Upper | W/Hi Perf. Eng.; W/4-Bbl. Carb.; 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.