HomeHVAC > Hoses and PipesGates 19806 HVAC Heater Hose - Auxiliary Water Pump To Pipe-1, Heater To Valve or Thermostat To Reservoir
Part #: 19806

Gates 19806 HVAC Heater Hose - Auxiliary Water Pump To Pipe-1, Heater To Valve or Thermostat To Reservoir

Molded Heater Hose, Heater To Valve, Auxiliary Water Pump To Pipe-1, and Thermostat To Reservoir
⚙️ 44 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater To Valve, Auxiliary Water Pump To Pipe-1, and Thermostat To Reservoir
🚗Fitment: Buick, Chevrolet, Ford, GMC, Isuzu, Jaguar, Lincoln, Oldsmobile, and Saab, 9-3, 9-3X, Ascender, Bravada, Envoy, Envoy XL, Envoy XUV, LS, Rainier, S-Type, Thunderbird, Trailblazer, and Trailblazer EXT
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Reliable HVAC Heater Hose for Select Buick, Chevrolet, and Ford Models

The Gates Molded Heater Hose 19806 is engineered to provide dependable heating system performance for a range of vehicles including Buick, Chevrolet, Ford, GMC, and more. Designed with durable EPDM material and precise molded construction, this heater hose ensures a secure fit and long-lasting service in your vehicle's HVAC system.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Molded design for exact fit and easy installation
  • Centerline length of 10.51 inches (267 mm) for accurate replacement
  • Consistent inside diameter of 0.75 inches (19 mm) on both ends
  • Compatible with multiple makes and models including Buick 9-3, Chevrolet Trailblazer, and Ford Thunderbird

About the Gates Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on precision-engineered hoses designed to meet or exceed OEM specifications. These hoses feature molded shapes that match original equipment contours, reducing the need for modifications during installation. The 19806 part number is part of this line, offering a reliable replacement option for HVAC heater hoses in various vehicle applications.

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 construction ensures the hose maintains its shape and fits securely between heater core and engine connections. With a centerline length of 10.51 inches (267 mm) and an inside diameter of 0.75 inches (19 mm) on both ends, the Gates 19806 heater hose provides a precise fit for vehicles such as the Buick 9-3X, Chevrolet Envoy XL, and Ford Thunderbird. The hose does not include quick connect fittings or branches, simplifying the replacement process.

Common Applications and Issues Addressed

  • Replacement of cracked or leaking heater hoses in Buick, Chevrolet, Ford, and other compatible vehicles
  • Restoring proper coolant flow to the HVAC heater core
  • Preventing coolant leaks that can cause engine overheating or interior heating failure
  • Addressing hose deterioration due to age, heat, or chemical exposure
  • Ensuring a secure, OEM-style fit to maintain system integrity

Installation Notes and Tips

Before installation, verify the part number 19806 matches your vehicle’s required heater hose specifications. The molded design allows for straightforward replacement without the need for hose modifications. Ensure all clamps and connections are secure to prevent leaks. It is recommended to inspect surrounding hoses and components for wear during replacement to maintain overall HVAC system reliability.

Quality Assurance and Warranty

Gates Molded Heater Hose 19806 is manufactured to meet stringent quality standards, ensuring durability and performance in demanding automotive environments. The EPDM material and molded construction contribute to long service life. Warranty details should be confirmed with the original equipment manufacturer or supplier, as they may vary by application and region.

BrandGates
Part Number19806
PositionMolded Heater Hose, Heater To Valve, Auxiliary Water Pump To Pipe-1, and Thermostat To Reservoir
MaterialEpdm
End 1 Inside Diameter.75
End 1 Inside Diameter19
End 2 Inside Diameter.75
End 2 Inside Diameter19
Centerline Length10.51
Centerline Length267
Branch Quantity0
9839Yes
98450
Centerline Length (in)10.51
Centerline Length (mm)267
MoldedYes
Number of Quick Connect Fittings0

This part fits 44 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2011Saab9-3X2.0LL4GASThermostat To ReservoirMolded Heater Hose
2010Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2010Saab9-3X2.0LL4GASThermostat To ReservoirMolded Heater Hose
2009Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2008Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2007Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2006Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2005BuickRainier4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005ChevroletTrailblazer4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005ChevroletTrailblazer EXT4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005GMCEnvoy4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005GMCEnvoy XL4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005GMCEnvoy XUV4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005IsuzuAscender4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2005Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2004BuickRainier4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004ChevroletTrailblazer4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004ChevroletTrailblazer EXT4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004GMCEnvoy4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004GMCEnvoy XL4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004GMCEnvoy XUV4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004IsuzuAscender4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004OldsmobileBravada4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2004Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2003ChevroletTrailblazer4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003ChevroletTrailblazer EXT4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003GMCEnvoy4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003GMCEnvoy XL4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003IsuzuAscender4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003OldsmobileBravada4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2003Saab9-32.0LL4GASThermostat To ReservoirMolded Heater Hose
2002ChevroletTrailblazer4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2002ChevroletTrailblazer EXT4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2002FordThunderbird3.9LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2002GMCEnvoy4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2002GMCEnvoy XL4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2002JaguarS-Type4.0LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2002LincolnLS3.9LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2002OldsmobileBravada4.2LL6GASHeater To ValveCut-to-fit HVAC heater hose for vehicles equipped with auxiliary heaters.; Molded Heater Hose
2001JaguarS-Type4.0LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2001LincolnLS3.9LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2000JaguarS-Type4.0LV8GASAuxiliary Water Pump To Pipe-1Molded Heater Hose
2000LincolnLS3.9LV8GASAuxiliary Water Pump To Pipe-1Molded 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:

118061279919814378S15079935150799531980664210XW43 18K580 EDXW4Z 18472 GA

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