HomeHVAC > Hoses and PipesGates 18733 HVAC Heater Hose - Pipe-1 To Water Pump, Pipe-2 To Thermostat or Thermostat To Intake Manifold
Part #: 18733

Gates 18733 HVAC Heater Hose - Pipe-1 To Water Pump, Pipe-2 To Thermostat or Thermostat To Intake Manifold

Molded Heater Hose, Pipe-2 To Thermostat, Thermostat To Intake Manifold, and Pipe-1 To Water Pump
⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Pipe-2 To Thermostat, Thermostat To Intake Manifold, and Pipe-1 To Water Pump
🚗Fitment: Mercury, Nissan, and Volkswagen, 200SX, Passat, Sable, and Sentra
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Overview of Gates Molded Heater Hose 18733

The Gates Molded Heater Hose 18733 is designed for reliable HVAC system performance in select Mercury, Nissan, and Volkswagen vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's heating system.

  • Constructed from high-quality EPDM rubber for heat and ozone resistance
  • Molded design for precise fit and leak prevention
  • Inside diameter of 0.62 inches (16 mm) on both ends
  • Centerline length of 6.4 inches (163 mm) for accurate replacement
  • Compatible with Mercury Sable, Nissan 200SX and Sentra, Volkswagen Passat models

Detailed Product Description

This HVAC heater hose from Gates, part number 18733, is part of the Molded Heater Hose product line, which focuses on delivering hoses that are pre-formed to exact OEM specifications. The molded construction reduces the risk of kinks and leaks, providing a secure and reliable connection within the vehicle’s heating system. Made from EPDM, the hose resists heat, coolant chemicals, and environmental factors, making it suitable for long-term use in automotive HVAC applications.

Compatible Vehicles and Applications

The Gates Molded Heater Hose 18733 is compatible with several vehicle makes and models, including:

  • Mercury Sable
  • Nissan 200SX and Sentra
  • Volkswagen Passat

This hose is designed to replace worn or damaged heater hoses that can cause heating inefficiency or coolant leaks.

Common Issues Addressed by This Heater Hose

  • Heater core leaks due to cracked or brittle hoses
  • Reduced cabin heating performance from restricted coolant flow
  • Coolant leaks causing engine overheating risks
  • Hose collapse or kinking affecting HVAC system operation
  • Premature hose failure from exposure to heat and chemicals

Installation Notes and Tips

  • Ensure the vehicle is cool before removing the old heater hose to avoid burns
  • Verify the hose dimensions: 0.62 inch (16 mm) inside diameter and 6.4 inch (163 mm) centerline length
  • Check for proper seating and secure clamps to prevent leaks
  • Inspect surrounding components for wear or damage during replacement

Quality Assurance and Warranty

Gates Molded Heater Hose 18733 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to a reliable HVAC hose solution. Warranty details are provided by Gates and typically cover defects in material and workmanship under normal use conditions.

BrandGates
Part Number18733
PositionMolded Heater Hose, Pipe-2 To Thermostat, Thermostat To Intake Manifold, and Pipe-1 To Water Pump
MaterialEpdm
End 1 Inside Diameter.62
End 1 Inside Diameter16
End 2 Inside Diameter.62
End 2 Inside Diameter16
Centerline Length163
Centerline Length6.4
Branch Quantity0
9839Yes
98450
Centerline Length (in)6.4
Centerline Length (mm)163
MoldedYes
Number of Quick Connect Fittings0

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2001MercurySable3.0LV6FLEXPipe-2 To ThermostatMolded Heater Hose
2001MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
2000MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
1999MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
1999NissanSentra1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1998MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
1998Nissan200SX1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1998NissanSentra1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1997MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
1997Nissan200SX1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1997NissanSentra1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1996MercurySable3.0LV6GASPipe-2 To ThermostatMolded Heater Hose
1996Nissan200SX1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1996NissanSentra1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1995Nissan200SX1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1995NissanSentra1.6LL4GASThermostat To Intake ManifoldMolded Heater Hose
1994VolkswagenPassat2.0LL4GASPipe-1 To Water PumpMolded Heater Hose
1993VolkswagenPassat2.0LL4GASPipe-1 To Water PumpMolded Heater Hose
1992VolkswagenPassat2.0LL4GASPipe-1 To Water PumpMolded Heater Hose
1991VolkswagenPassat2.0LL4GASPipe-1 To Water PumpMolded Heater Hose
1990VolkswagenPassat2.0LL4GASPipe-1 To Water PumpMolded 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:

037121058A107331405553Y0514055F411114081S1873387871B87871R25172

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.