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Gates 18078 HVAC Heater Hose
Reliable HVAC Heater Hose for Ford, Jeep, Lincoln, and More
The Gates Molded Heater Hose 18078 is engineered to provide durable and precise fitment for select Ford, Jeep, Lincoln, Mercury, and Plymouth vehicles. Designed with quality EPDM material, this molded heater hose ensures efficient heat transfer and long-lasting performance in your vehicle's HVAC system.
- Constructed from high-quality EPDM for heat and chemical resistance
- Molded design for exact fit and easy installation
- End 1 inside diameter: 0.62 inches (16 mm)
- End 2 inside diameter: 0.75 inches (19 mm)
- Centerline length: 41.6 inches (1057 mm)
- Compatible with Ford Mustang, Thunderbird, Jeep Grand Cherokee, Lincoln Continental, and more
About the Gates Molded Heater Hose Product Line
The Molded Heater Hose line by Gates focuses on delivering pre-formed hoses that match original equipment specifications. This eliminates the need for bending or cutting, reducing installation time and potential leaks. The molded construction of part number 18078 ensures a precise fit for HVAC systems in various Ford, Jeep, Lincoln, Mercury, and Plymouth models.
Detailed Product Description
This HVAC heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded design of the Gates 18078 heater hose provides a reliable seal and consistent flow within the heating system. With a centerline length of 41.6 inches (1057 mm), and differing inside diameters on each end (0.62 inches/16 mm and 0.75 inches/19 mm), this hose is engineered to fit specific OEM configurations without modification.
Common Applications and Issues Addressed
- Replacement of cracked or leaking heater hoses in Ford Mustang and Thunderbird HVAC systems
- Restoring proper coolant flow in Jeep Grand Cherokee heating circuits
- Resolving heater core connection leaks in Lincoln Continental and Mercury Marquis models
- Eliminating hose collapse or blockage affecting cabin heat delivery
- Upgrading worn or deteriorated hoses in Plymouth Capri and Ford LTD vehicles
Installation Notes and Tips
Ensure the engine is cool before beginning installation to avoid burns from hot coolant. Verify hose routing matches the original configuration to prevent kinks or interference with other components. The molded design of the Gates 18078 heater hose simplifies installation by fitting directly without trimming or bending. Use appropriate clamps to secure each end and check for leaks after installation.
Quality Assurance and Warranty
Gates Molded Heater Hose 18078 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material provides resistance to heat and automotive fluids, contributing to a longer service life. 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 | 18078 |
| Position | Molded Heater Hose, Valve To Engine, Heater To Pipe, Heater To Pipe-1, Exhaust Gas Recirculation Cooler To Pipe, Pipe To Exhaust Gas Recirculation Cooler, Heater To Water Pump, Cooler To Engine, Pipe To Water Pump, Heater To Thermostat, Oil Cooler To Engine, Pipe To Cooler, and Tee To Cooler |
| Material | Epdm |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .75 |
| End 2 Inside Diameter | 19 |
| Centerline Length | 1057 |
| Centerline Length | 41.6 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| Centerline Length (in) | 41.6 |
| Centerline Length (mm) | 1057 |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 55 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1998 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1997 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1996 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1995 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1994 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1993 | Jeep | Grand Cherokee | 4.0L | L6 | GAS | Heater To Thermostat | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1989 | Plymouth | Expo | 2.2L | L4 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1989 | Plymouth | Expo | 2.2L | L4 | GAS | Valve To Engine | Cut-to-size heater hose suitable for air conditioning systems.; Molded Heater Hose |
| 1987 | Ford | Cougar | 3.8L | V6 | GAS | Heater To Pipe | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1987 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Pipe | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1987 | Lincoln | Continental | 5.0L | V8 | GAS | Oil Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1987 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Pipe | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1986 | Ford | Cougar | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1986 | Ford | LTD | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1986 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1986 | Lincoln | Continental | 5.0L | V8 | GAS | Oil Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1986 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1986 | Mercury | Marquis | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Ford | Cougar | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Ford | LTD | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Ford | Mustang | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Ford | Thunderbird | 2.3L | L4 | GAS | Exhaust Gas Recirculation Cooler To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1985 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Ford | Thunderbird | 5.0L | V8 | GAS | Pipe To Exhaust Gas Recirculation Cooler | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1985 | Lincoln | Continental | 5.0L | V8 | GAS | Oil Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1985 | Mercury | Capri | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Mercury | Cougar | 2.3L | L4 | GAS | Exhaust Gas Recirculation Cooler To Pipe | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1985 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1985 | Mercury | Cougar | 5.0L | V8 | GAS | Pipe To Cooler | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1985 | Mercury | Marquis | 3.8L | V6 | GAS | Heater To Pipe-1 | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1984 | Ford | LTD | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Ford | Mustang | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Ford | Thunderbird | 2.3L | L4 | GAS | Exhaust Gas Recirculation Cooler To Pipe | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1984 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Ford | Thunderbird | 5.0L | V8 | GAS | Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Lincoln | Continental | 5.0L | V8 | GAS | Oil Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Mercury | Capri | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Mercury | Cougar | 2.3L | L4 | GAS | Exhaust Gas Recirculation Cooler To Pipe | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1984 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Mercury | Cougar | 5.0L | V8 | GAS | Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1984 | Mercury | Grand Marquis | 5.0L | V8 | GAS | Tee To Cooler | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1984 | Mercury | Marquis | 3.8L | V6 | GAS | Heater To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1983 | Ford | LTD | 3.3L | L6 | GAS | Pipe To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1983 | Ford | LTD | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1983 | Ford | Mustang | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1983 | Ford | Thunderbird | 2.3L | L4 | GAS | Exhaust Gas Recirculation Cooler To Pipe | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1983 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1983 | Ford | Thunderbird | 5.0L | V8 | GAS | Heater To Pipe-1 | W/Auto. Temp. Control; Cut to fit; Molded Heater Hose |
| 1983 | Lincoln | Continental | 5.0L | V8 | GAS | Oil Cooler To Engine | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1983 | Mercury | Capri | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1983 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1983 | Mercury | Marquis | 3.3L | L6 | GAS | Pipe To Water Pump | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose |
| 1983 | Mercury | Marquis | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1982 | Ford | Thunderbird | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; Molded Heater Hose |
| 1982 | Mercury | Cougar | 3.8L | V6 | GAS | Heater To Water Pump | Protective sleeve required; Cut to fit.; 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.