HomeHVAC > Hoses and PipesGates 19338 HVAC Heater Hose - Heater (Upper)
Part #: 19338

Gates 19338 HVAC Heater Hose - Heater (Upper)

Molded Heater Hose, Heater (Upper)
⚙️ 3 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater (Upper)
🚗Fitment: Mazda, 6
🔄Easy Returns — Return within 60 days for a full refund
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Reliable HVAC Heater Hose for Mazda 6

The Gates Molded Heater Hose 19338 is designed specifically for Mazda 6 models, providing a durable and precise fit for your vehicle's heating system. Constructed from high-quality EPDM material, this molded heater hose ensures long-lasting performance and resistance to heat and chemicals.

  • Constructed from EPDM material for heat and chemical resistance
  • Molded design for exact fit and easy installation
  • Centerline length of 29.9 inches (759 mm) for proper routing
  • End 1 inside diameter: 0.7 inches (18 mm)
  • End 2 inside diameter: 0.75 inches (19 mm)
  • Compatible with Mazda 6 models

About the Gates Molded Heater Hose Product Line

The Molded Heater Hose line by Gates offers precision-engineered hoses designed to meet specific vehicle requirements. These hoses are molded to exact dimensions, ensuring a secure fit and optimal flow within the HVAC system. The 19338 part number is part of this line, providing a reliable replacement hose for Mazda 6 heating systems that require exact fitment and durability.

Product Details and Specifications

This HVAC heater hose features a molded construction that eliminates the need for multiple fittings or clamps, reducing potential leak points. The EPDM material used in the Gates 19338 hose offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for the demanding environment of a vehicle’s heating system. The hose measures 29.9 inches (759 mm) in centerline length, with end diameters of 0.7 inches (18 mm) and 0.75 inches (19 mm), ensuring compatibility with the Mazda 6’s HVAC connections.

Common Applications and Problem Solving

  • Replacement of cracked or leaking heater hoses in Mazda 6 HVAC systems
  • Restoring proper coolant flow to the heater core
  • Preventing coolant leaks that cause engine overheating
  • Eliminating hose collapse or blockage affecting cabin heating
  • Maintaining system pressure and preventing air intrusion

Installation Notes and Tips

When installing the Gates Molded Heater Hose 19338, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose routing matches the original to avoid kinks or interference with other components. The molded design simplifies installation by fitting precisely without modification. Inspect all hose connections and clamps for wear and replace as necessary to ensure a secure seal.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 19338 to meet or exceed OEM specifications for durability and performance. The EPDM material and molded construction provide reliable service life under normal operating conditions. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship.

BrandGates
Part Number19338
PositionMolded Heater Hose, Heater (Upper)
MaterialEpdm
End 1 Inside Diameter.7
End 1 Inside Diameter18
End 2 Inside Diameter.75
End 2 Inside Diameter19
Centerline Length29.9
Centerline Length759
Branch Quantity0
9839Yes
98450
Centerline Length (in)29.9
Centerline Length (mm)759
MoldedYes
Number of Quick Connect Fittings0

This part fits 3 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2005Mazda6Manual3.0LV6GASHeater (Upper)Molded Heater Hose
2004Mazda6Manual3.0LV6GASHeater (Upper)Molded Heater Hose
2003Mazda6Manual3.0LV6GASHeater (Upper)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:

1133818320L193383M81 18C266 GH64508GK3K6124XEGK3K6124XG

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