OE Quality
60-Day Returns

Gates 21118 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 21118
The Gates Molded Coolant Hose 21118 is engineered for reliable radiator coolant transfer in various vehicle applications. Constructed from durable EPDM material, this molded radiator coolant hose offers precise fitment and long-lasting performance for compatible makes and models.
- Material: High-quality EPDM for heat and chemical resistance
- End 1 Inside Diameter: 1.75 inches (44 mm)
- End 2 Inside Diameter: 2 inches (51 mm)
- Centerline Length: 15.4 inches (391 mm)
- Molded design for exact fit and leak prevention
- Contains no internal spring, ensuring smooth coolant flow
- No quick connect fittings or branches, simplifying installation
Details on the Molded Coolant Hose Product Line
The Gates Molded Coolant Hose line focuses on precision-engineered molded hoses designed to meet specific OEM specifications. This product line emphasizes durability and exact fitment, reducing the risk of leaks and coolant loss. The molded construction of the 21118 hose ensures consistent shape and performance, making it suitable for vehicles requiring reliable radiator coolant hose replacements.
Technical Description and Specifications
The Gates 21118 radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids. The hose features two different inside diameters at each end—1.75 inches (44 mm) and 2 inches (51 mm)—to accommodate specific radiator and engine connections. With a centerline length of 15.4 inches (391 mm), this molded hose is designed to maintain proper coolant flow without kinks or restrictions. The absence of internal springs and quick connect fittings simplifies the hose's internal structure, promoting consistent coolant circulation.
Common Applications and Problem Solving
- Replacement for cracked or leaking radiator coolant hoses
- Addressing coolant flow restrictions caused by collapsed or damaged hoses
- Resolving overheating issues linked to faulty coolant hose connections
- Preventing coolant leaks due to improper hose fit or wear
- Maintaining engine cooling system integrity in compatible vehicles
Installation Notes and Tips
Ensure the vehicle is cool before removing the old radiator coolant hose to avoid burns. Verify the hose dimensions and fitment against your vehicle’s specifications. The molded design of the Gates 21118 hose allows for straightforward installation without modification. Use appropriate clamps to secure each end, ensuring a tight seal to prevent leaks. Inspect surrounding components for wear or damage during installation.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 21118 to meet stringent quality standards, ensuring durability and reliable performance. The EPDM material provides resistance to heat and automotive fluids, contributing to the hose’s longevity. While specific warranty details are not provided, Gates products typically adhere to industry standards for replacement parts, offering confidence in their use for radiator coolant system repairs.
| Brand | Gates |
| Part Number | 21118 |
| Material | Epdm |
| End 1 Inside Diameter | 1.75 |
| End 1 Inside Diameter | 44 |
| End 2 Inside Diameter | 2 |
| End 2 Inside Diameter | 51 |
| Contains Spring | No |
| Centerline Length | 15.4 |
| Centerline Length | 391 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* 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.