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Gates 21183 Radiator Coolant Hose - Upper
Reliable Radiator Coolant Hose for Buick, Oldsmobile, and Pontiac
The Gates Molded Coolant Hose 21183 is engineered to provide dependable cooling system performance for select Buick, Oldsmobile, and Pontiac vehicles. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for long-lasting service.
- Constructed from high-quality EPDM rubber for heat and chemical resistance
- Molded design for precise fit and leak prevention
- Centerline length of 28.5 inches (724 mm) for accurate replacement
- Inside diameter of 1.5 inches (38 mm) on both ends for proper coolant flow
- Compatible with multiple Buick, Oldsmobile, and Pontiac models
About the Gates Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on delivering hoses that are pre-formed to match original equipment specifications. This eliminates the need for bending or shaping during installation, reducing the risk of kinks or leaks. The molded construction of part number 21183 ensures a secure and precise fit for the cooling systems of various GM vehicles.
Detailed Product Description
This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The molded design of the Gates 21183 hose provides a consistent shape that matches factory specifications, ensuring proper coolant flow and system integrity. Both ends feature an inside diameter of 1.5 inches (38 mm), suitable for direct replacement without modification. With a centerline length of 28.5 inches (724 mm), this hose fits specific Buick, Oldsmobile, and Pontiac models, including the Bonneville, Catalina, Century, Delta 88, Firebird, Grand Am, Grand LeMans, Grand Prix, Laurentian, LeMans, LeSabre, Parisienne, and Regal.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses
- Prevention of coolant leaks that can cause engine overheating
- Restoration of proper coolant flow in Buick, Oldsmobile, and Pontiac cooling systems
- Elimination of hose collapse or kinking due to molded design
- Maintenance of cooling system pressure and efficiency
Installation Notes and Tips
Ensure the engine is cool before removing the old hose to avoid burns. Verify the hose routing matches the original to prevent interference with other engine components. Use appropriate clamps to secure both ends of the hose firmly. The molded shape of the Gates 21183 hose simplifies installation by fitting precisely without the need for bending or adjustment.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 21183 to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction contribute to a reliable, long-lasting replacement part. While specific warranty details are not provided here, Gates products typically come with a limited warranty against defects in material and workmanship.
| Brand | Gates |
| Part Number | 21183 |
| 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 | 28.5 |
| Centerline Length | 724 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 35 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1981 | Buick | Century | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Buick | Regal | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Bonneville | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Catalina | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Firebird | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Firebird | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Grand LeMans | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Grand LeMans | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Grand Prix | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Laurentian | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | LeMans | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | LeMans | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1981 | Pontiac | Parisienne | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Buick | Century | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Buick | Century | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Buick | LeSabre | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Buick | Regal | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Buick | Regal | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Oldsmobile | Delta 88 | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Bonneville | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Bonneville | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Catalina | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Catalina | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Firebird | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Firebird | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Grand Am | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Grand LeMans | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Grand LeMans | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Grand Prix | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | Grand Prix | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | LeMans | 4.3L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1980 | Pontiac | LeMans | 4.9L | V8 | GAS | Upper | Radiator and HVAC compatible coolant and heater hose.; Molded Coolant Hose |
| 1979 | Pontiac | Firebird | 4.9L | V8 | GAS | Upper | Molded Coolant Hose |
| 1979 | Pontiac | Firebird | 6.6L | V8 | GAS | Upper | Molded Coolant Hose |
| 1978 | Pontiac | Firebird | 6.6L | V8 | GAS | Upper | 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.