OE Quality
60-Day Returns

Gates 18853 HVAC Heater Hose
Overview of Gates Molded Heater Hose 18853
The Gates Molded Heater Hose 18853 is designed for reliable HVAC system performance in select Chevrolet, Pontiac, and Toyota 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 for heat and chemical resistance
- Molded design for precise fit and leak prevention
- Inside diameter of 0.62 inches (16 mm) on both ends
- Centerline length of 16.4 inches (417 mm) for accurate replacement
- Compatible with Chevrolet Nova, Pontiac Fiero, Toyota Corolla, and Toyota Sienna models
Detailed Product Description
The Gates Molded Heater Hose 18853 belongs to the Molded Heater Hose product line, which focuses on delivering pre-formed hoses that match original equipment specifications. This hose is molded to exact dimensions, including a centerline length of 16.4 inches (417 mm) and consistent inside diameters of 0.62 inches (16 mm) on both ends, ensuring a secure and leak-free connection within the HVAC system. Made from EPDM material, it offers resistance to heat, ozone, and automotive fluids, making it suitable for the demanding environment of vehicle heating systems.
Compatible Vehicles and Applications
This HVAC heater hose is compatible with several popular vehicle models, including Chevrolet Nova, Pontiac Fiero, Toyota Corolla, and Toyota Sienna. It is specifically designed to replace worn or damaged heater hoses in these vehicles, restoring proper coolant flow and heating system function.
- Replaces cracked or leaking heater hoses
- Prevents coolant leaks that can cause engine overheating
- Restores proper heater core function for cabin comfort
- Eliminates hose collapse or blockage issues
Installation Notes and Tips
When installing the Gates Molded Heater Hose 18853, ensure the hose is routed according to the vehicle’s original configuration to avoid kinks or interference with other components. Verify that the inside diameters match the heater core and engine fittings for a secure fit. Use appropriate clamps to secure the hose ends and check for leaks after installation. The molded design simplifies installation by providing a precise fit without the need for additional shaping.
Quality Assurance and Warranty
Gates is a recognized manufacturer of automotive hoses, and the Molded Heater Hose 18853 is produced to meet or exceed OEM standards. The EPDM material and molded construction contribute to durability and resistance to common failure modes. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support reliable performance in HVAC applications.
| Brand | Gates |
| Part Number | 18853 |
| Position | Molded Heater Hose, Tee To Intake Manifold |
| 0 | |
| Yes | |
| Branch Quantity | 0 |
| Centerline Length | 16.4 |
| Centerline Length | 417 |
| Centerline Length (in) | 16.4 |
| Centerline Length (mm) | 417 |
| End 1 Inside Diameter | .62 |
| End 1 Inside Diameter | 16 |
| End 2 Inside Diameter | .62 |
| End 2 Inside Diameter | 16 |
| Material | EPDM |
| Molded | Yes |
| Number of Quick Connect Fittings | 0 |
This part fits 30 vehicles. Search below:
| Year | Make | Model | Submodel | # Doors | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 2002 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 2001 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 2000 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 1999 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 1998 | Toyota | Sienna | 3.0L | V6 | GAS | Tee To Intake Manifold | With Auxiliary Heater; Molded Heater Hose | |||
| 1988 | Chevrolet | Nova | 1.6L | L4 | GAS | Heater To Engine | Molded Heater Hose | |||
| 1988 | Toyota | Corolla | DLX | 4 Door | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | |
| 1988 | Toyota | Corolla | FX16 | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1988 | Toyota | Corolla | LE | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1988 | Toyota | Corolla | FX | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1987 | Chevrolet | Nova | 1.6L | L4 | GAS | Heater To Engine | Molded Heater Hose | |||
| 1987 | Toyota | Corolla | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | |||
| 1986 | Chevrolet | Nova | 1.6L | L4 | GAS | Heater To Engine | Molded Heater Hose | |||
| 1986 | Pontiac | Fiero | 2.5L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose | |||
| 1986 | Pontiac | Fiero | 2.8L | V6 | GAS | Heater To Pipe-2 | Molded Heater Hose | |||
| 1986 | Toyota | Corolla | Sport GTS | 1.6L | L4 | GAS | Valve To Heater | Molded Heater Hose | ||
| 1986 | Toyota | Corolla | LE Limited | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1986 | Toyota | Corolla | LE | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1986 | Toyota | Corolla | DLX | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1985 | Chevrolet | Nova | 1.6L | L4 | GAS | Heater To Engine | Molded Heater Hose | |||
| 1985 | Pontiac | Fiero | 2.5L | L4 | GAS | Heater To Pipe-2 | Molded Heater Hose | |||
| 1985 | Pontiac | Fiero | 2.8L | V6 | GAS | Heater To Pipe-2 | Molded Heater Hose | |||
| 1985 | Toyota | Corolla | DLX | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1985 | Toyota | Corolla | LE | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1985 | Toyota | Corolla | LE Limited | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1985 | Toyota | Corolla | 1.8L | L4 | DIESEL | Heater To Valve | Molded Heater Hose | |||
| 1984 | Pontiac | Fiero | 2.5L | L4 | GAS | Heater To Pipe-2 | Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose | |||
| 1984 | Toyota | Corolla | FWD | 1.6L | L4 | GAS | Heater To Valve | Molded Heater Hose | ||
| 1984 | Toyota | Corolla | 1.8L | L4 | DIESEL | Heater To Valve | 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.