OE Quality
60-Day Returns

Gates 51855 Radiator Coolant Hose - Lower
Reliable Radiator Coolant Hose for Honda Civic
The Gates Molded Coolant Hose 51855 is designed specifically for Honda Civic models, providing a durable and precise fit. Made from EPDM material, this radiator coolant hose ensures reliable performance under various operating conditions.
- Constructed from high-quality EPDM for heat and chemical resistance
- End 1 and End 2 inside diameter: 1.19 inches (30 mm)
- Centerline length of 18.91 inches (480 mm) for exact fitment
- Does not contain a spring, ensuring consistent flexibility
- Compatible with Honda Civic cooling systems
About the Gates Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates offers pre-formed hoses engineered to match specific vehicle cooling system requirements. This product line focuses on delivering hoses with precise dimensions and material composition to maintain optimal coolant flow and system integrity. The 51855 part benefits from this design approach, ensuring a proper fit and reliable operation in Honda Civic models.
Product Details and Specifications
This radiator coolant hose features an EPDM construction, known for its resistance to heat, ozone, and coolant chemicals, which helps extend hose life. Both ends of the hose have an inside diameter of 1.19 inches (30 mm), making it suitable for the corresponding radiator and engine connections. The centerline length measures 18.91 inches (480 mm), providing an exact replacement for the original equipment hose. The hose does not include a spring, which allows for consistent flexibility without internal reinforcement.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in Honda Civic vehicles
- Resolving coolant leaks caused by hose degradation
- Preventing overheating issues due to compromised coolant flow
- Maintaining proper engine temperature regulation
- Ensuring secure coolant system connections without spring interference
Installation Notes and Tips
When installing the Gates Molded Coolant Hose 51855, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose dimensions match the original part, especially the 1.19-inch inside diameters and 18.91-inch length. Properly secure hose clamps to prevent leaks and avoid twisting the hose during installation to maintain coolant flow integrity.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 51855 to meet or exceed OEM specifications for durability and performance. The EPDM material and precise molding process contribute to long service life. While specific warranty details are not provided, Gates products typically adhere to industry standards for quality and reliability.
| Brand | Gates |
| Part Number | 51855 |
| Position | Molded Coolant Hose, Lower |
| Material | Epdm |
| End 1 Inside Diameter | 1.19 |
| End 1 Inside Diameter | 30 |
| End 2 Inside Diameter | 1.19 |
| End 2 Inside Diameter | 30 |
| Contains Spring | No |
| Centerline Length | 18.91 |
| Centerline Length | 480 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| 9940 | No |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Honda | Civic | 2.0L | L4 | GAS | Lower | Molded Coolant Hose |
| 2018 | Honda | Civic | 2.0L | L4 | GAS | Lower | 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.