HomeHVAC > Hoses and PipesGates 19850 HVAC Heater Hose
Part #: 19850

Gates 19850 HVAC Heater Hose

Molded Heater Hose, Heater To Thermostat, Engine To Heater, Connector To Engine, Engine To Tee, and Heater Inlet
⚙️ 24 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater To Thermostat, Engine To Heater, Connector To Engine, Engine To Tee, and Heater Inlet
🚗Fitment: Chevrolet, INFINITI, Pontiac, and Saturn, Aura, Classic, FX50, G6, Malibu, and QX70
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Overview of Gates Molded Heater Hose 19850

The Gates Molded Heater Hose 19850 is designed to provide reliable heating system performance for select Chevrolet, INFINITI, Pontiac, and Saturn vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's HVAC system.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for precise fit and secure connections
  • Centerline length of 13.6 inches (345 mm) for accurate replacement
  • Inside diameter of 0.75 inches (19 mm) on both ends
  • Compatible with Chevrolet Malibu, Pontiac G6, Saturn Aura, INFINITI FX50, and QX70 models

Details on the 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 during installation, reducing the risk of leaks or improper fitment. The molded construction of part number 19850 ensures a precise fit for the HVAC heater system in compatible vehicles, maintaining system integrity and performance.

Technical Description and Specifications

This HVAC heater hose features an inside diameter of 0.75 inches (19 mm) on both ends, making it suitable for consistent coolant flow within the heating system. The centerline length measures 13.6 inches (345 mm), providing an exact replacement length for the specified vehicle models. Manufactured from EPDM, the hose offers resistance to heat, ozone, and automotive fluids, which is critical for maintaining durability under engine compartment conditions. The molded design enhances installation accuracy and reduces the potential for hose kinks or leaks.

Applications and Common Issues Addressed

  • Replacement of worn or cracked heater hoses in Chevrolet Malibu and Pontiac G6
  • Resolving coolant leaks in the HVAC system of Saturn Aura and INFINITI FX50
  • Restoring proper heater core function in INFINITI QX70 models
  • Preventing overheating caused by compromised heater hose integrity
  • Ensuring consistent cabin heating performance through reliable coolant flow

Installation Notes and Tips

When installing the Gates Molded Heater Hose 19850, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the molded shape to avoid stress or kinks. Use appropriate clamps to secure both ends firmly without over-tightening, which could damage the hose. Inspect surrounding components for wear or damage during replacement to maintain overall HVAC system reliability.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 19850 to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction contribute to a long service life under typical operating conditions. While specific warranty details are not provided here, Gates products generally come with a limited warranty against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandGates
Part Number19850
PositionMolded Heater Hose, Heater To Thermostat, Engine To Heater, Connector To Engine, Engine To Tee, and Heater Inlet
MaterialEpdm
End 1 Inside Diameter.75
End 1 Inside Diameter19
End 2 Inside Diameter.75
End 2 Inside Diameter19
Centerline Length13.6
Centerline Length345
Branch Quantity0
9839Yes
98450
Centerline Length (in)13.6
Centerline Length (mm)345
MoldedYes
Number of Quick Connect Fittings0

This part fits 24 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2014INFINITIQX705.0LV8GASConnector To EngineMolded Heater Hose
2013INFINITIFX505.0LV8GASConnector To EngineMolded Heater Hose
2012INFINITIFX505.0LV8GASEngine To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2011INFINITIFX505.0LV8GASEngine To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2010ChevroletMalibuAutomatic2.4LL4FLEXHeater To ThermostatMolded Heater Hose
2010ChevroletMalibuAutomatic2.4LL4GASHeater To ThermostatMolded Heater Hose
2010INFINITIFX505.0LV8GASEngine To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2010PontiacG62.4LL4FLEXEngine To HeaterMolded Heater Hose
2010PontiacG62.4LL4GASEngine To HeaterMolded Heater Hose
2009ChevroletMalibuAutomatic2.4LL4GASHeater To ThermostatMolded Heater Hose
2009INFINITIFX505.0LV8GASEngine To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2009PontiacG62.4LL4GASEngine To HeaterMolded Heater Hose
2009SaturnAura2.4LL4GASEngine To HeaterMolded Heater Hose
2008ChevroletMalibu2.2LL4GASEngine To HeaterMolded Heater Hose
2008ChevroletMalibuAutomatic2.4LL4GASHeater To ThermostatMolded Heater Hose
2008PontiacG62.4LL4GASEngine To HeaterMolded Heater Hose
2008SaturnAura2.4LL4GASEngine To HeaterMolded Heater Hose
2007ChevroletMalibu2.2LL4GASEngine To HeaterMolded Heater Hose
2007PontiacG62.4LL4GASEngine To HeaterMolded Heater Hose
2006ChevroletMalibu2.2LL4GASEngine To HeaterMolded Heater Hose
2006PontiacG62.4LL4GASEngine To HeaterMolded Heater Hose
2005ChevroletClassic2.2LL4GASEngine To HeaterMolded Heater Hose
2005ChevroletMalibu2.2LL4GASEngine To HeaterMolded Heater Hose
2004ChevroletMalibu2.2LL4GASHeater InletNew Body Style; 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:

1185014480S152938021577616115776163198502268249864198924101CA0A

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