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Gates 18779 HVAC Heater Hose
Overview of Gates Molded Heater Hose 18779
The Gates Molded Heater Hose 18779 is designed for reliable HVAC system performance in select Ford, Mazda, and Mercury vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in automotive heating applications.
- Constructed from high-quality EPDM rubber for heat and ozone resistance
- Molded design for precise fit and leak prevention
- Centerline length of 14.1 inches (358 mm) for accurate installation
- Inside diameter of 0.62 inches (16 mm) on both ends
- Compatible with Ford Escort, Mazda 323, MX-3, Protege, and Mercury Tracer models
Detailed Product Description
This HVAC heater hose from Gates features a molded construction that matches original equipment specifications, providing a secure and leak-free connection within the vehicle's heating system. The EPDM material offers resistance to heat, coolant, and environmental factors, making it suitable for extended use in automotive HVAC applications. With a centerline length of 14.1 inches (358 mm) and consistent 0.62 inch (16 mm) inside diameters on both ends, the hose is designed to fit precisely in the heating circuit of compatible Ford, Mazda, and Mercury vehicles.
About the Molded Heater Hose Product Line
The Gates Molded Heater Hose line focuses on delivering hoses that are pre-formed to exact OEM shapes, reducing installation time and improving fitment accuracy. This product line is engineered to meet the specific routing and dimensional requirements of various vehicle models, including the Ford Escort and Mazda Protege, ensuring reliable HVAC system operation.
Applications and Common Issues Addressed
- Replacement of cracked or leaking heater hoses in Ford Escort and Mazda 323
- Resolving coolant leaks that affect cabin heating performance
- Addressing hose deterioration caused by heat and chemical exposure
- Restoring proper coolant flow in Mercury Tracer heating systems
- Preventing HVAC system overheating due to compromised hoses
Installation Notes and Tips
Ensure the vehicle's cooling system is cool before beginning installation. Verify hose routing matches OEM specifications to avoid kinks or interference. Use appropriate clamps to secure hose ends and check for leaks after installation. The molded design simplifies alignment but confirm fitment with the specific Ford, Mazda, or Mercury model year.
Quality Assurance and Warranty
Gates Molded Heater Hose 18779 is manufactured to meet stringent quality standards for durability and performance. The EPDM construction provides resistance to heat and ozone, contributing to extended service life. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Gates |
| Part Number | 18779 |
| Position | Molded Heater Hose, Tee-2 To Reservoir, Heater To Engine, Heater To Pipe-2, and Pipe-1 To Water Pump |
| Material | Epdm |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .62 |
| End 2 Inside Diameter | 16 |
| Centerline Length | 14.1 |
| Centerline Length | 358 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 14.1 |
| Centerline Length (mm) | 358 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 32 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1996 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1996 | Mazda | MX-3 | 1.6L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1996 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1995 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1995 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1995 | Mazda | MX-3 | 1.6L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1995 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1994 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1994 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1994 | Mazda | 323 | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1994 | Mazda | MX-3 | 1.6L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1994 | Mazda | Protege | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1994 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1993 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1993 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1993 | Mazda | 323 | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1993 | Mazda | MX-3 | 1.6L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1993 | Mazda | Protege | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1993 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1992 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1992 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1992 | Mazda | MX-3 | 1.6L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1992 | Mazda | Protege | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1992 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1991 | Ford | Escort | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1991 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1991 | Mazda | 323 | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1991 | Mazda | Protege | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1991 | Mercury | Tracer | 1.8L | L4 | GAS | Heater To Engine | Molded Heater Hose |
| 1990 | Mazda | 323 | 1.6L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1990 | Mazda | 323 | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose |
| 1990 | Mazda | Protege | 1.8L | L4 | GAS | Heater To Pipe-2 | Molded Heater 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.