HomeHVAC > Hoses and PipesGates 18937 HVAC Heater Hose - Heater Inlet, Heater To Heater Pipe (Lower) or Heater To Pipe-1
Part #: 18937

Gates 18937 HVAC Heater Hose - Heater Inlet, Heater To Heater Pipe (Lower) or Heater To Pipe-1

Molded Heater Hose, Heater To Pipe-1, Heater To Heater Pipe (Lower), and Heater Inlet
⚙️ 20 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$31.85Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Heater To Pipe-1, Heater To Heater Pipe (Lower), and Heater Inlet
🚗Fitment: Ford, Mazda, Mercury, and Suzuki, Explorer, Explorer Sport, Explorer Sport Trac, Grand Vitara, Miata, and Mountaineer
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable HVAC Heater Hose for Ford, Mazda, Mercury, and Suzuki

The Gates Molded Heater Hose 18937 is engineered to provide dependable heating system performance for select Ford, Mazda, Mercury, and Suzuki vehicles. 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
  • Inside diameter of 0.62 inches (16 mm) on both ends
  • Centerline length of 10.2 inches (259 mm) for accurate replacement
  • Compatible with Ford Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, Mazda Miata, Mercury models, and Suzuki Grand Vitara

About the Gates Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on precision-molded hoses designed to meet or exceed OEM specifications. These hoses are manufactured to provide consistent dimensions and reliable sealing, reducing the risk of leaks and HVAC system failures. Part number 18937 is part of this line, offering a tailored fit for specific vehicle models to maintain optimal heater core performance.

Product Details and Specifications

This HVAC heater hose features an inside diameter of 0.62 inches (16 mm) on both ends, ensuring compatibility with the original equipment connections. The molded construction provides a centerline length of 10.2 inches (259 mm), matching factory dimensions for a direct replacement. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, which helps maintain system integrity under demanding operating conditions. The absence of quick connect fittings and branches simplifies installation and reduces potential leak points.

Common Applications and Problem Solving

  • Replacement of worn or cracked heater hoses in Ford Explorer and Explorer Sport models
  • Restoring proper coolant flow in Mazda Miata heating systems
  • Fixing leaks or blockages in Mercury Mountaineer heater hoses
  • Addressing HVAC heating issues in Suzuki Grand Vitara vehicles
  • Ensuring reliable heater core operation in Explorer Sport Trac models

Installation Notes and Tips

When installing the Gates Molded Heater Hose 18937, verify the hose routing matches the original to avoid kinks or interference. Ensure all clamps are securely tightened to prevent leaks. The molded design aids in proper alignment, but inspecting adjacent components for wear is recommended during replacement. Use coolant compatible with EPDM hoses to extend service life.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 18937 to meet stringent quality standards, ensuring durability and performance. The EPDM material and molded construction contribute to resistance against heat and chemical degradation. While specific warranty details are not provided, Gates products typically adhere to industry quality controls for automotive HVAC components.

BrandGates
Part Number18937
PositionMolded Heater Hose, Heater To Pipe-1, Heater To Heater Pipe (Lower), and Heater Inlet
MaterialEpdm
End 1 Inside Diameter.62
End 1 Inside Diameter16
End 2 Inside Diameter.62
End 2 Inside Diameter16
Centerline Length10.2
Centerline Length259
Branch Quantity0
9839Yes
98450
Centerline Length (in)10.2
Centerline Length (mm)259
MoldedYes
Number of Quick Connect Fittings0

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2010SuzukiGrand VitaraHeater InletRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2009SuzukiGrand VitaraHeater InletRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2005FordExplorerHeater To Pipe-1Molded Heater Hose
2005MercuryMountaineerHeater To Pipe-1Molded Heater Hose
2004FordExplorerHeater To Pipe-1Molded Heater Hose
2004MercuryMountaineerHeater To Pipe-1Molded Heater Hose
2003FordExplorerHeater To Pipe-1Molded Heater Hose
2003MercuryMountaineerHeater To Pipe-1Molded Heater Hose
2002FordExplorerHeater To Heater Pipe (Lower)Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2002FordExplorer SportHeater To Heater Pipe (Lower)Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2002FordExplorer Sport TracHeater To Heater Pipe (Lower)Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
2002MercuryMountaineerHeater To Heater Pipe (Lower)Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1997MazdaMiataHeater To Pipe-1Molded Heater Hose
1996MazdaMiataHeater To Pipe-1Molded Heater Hose
1995MazdaMiataHeater To Pipe-1Molded Heater Hose
1994MazdaMiataHeater To Pipe-1Molded Heater Hose
1993MazdaMiataHeater To Pipe-1Molded Heater Hose
1992MazdaMiataHeater To Pipe-1Molded Heater Hose
1991MazdaMiataHeater To Pipe-1Molded Heater Hose
1990MazdaMiataHeater 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:

1093714136S1787179K00189371L2Z 18472 DB6332787728C87728NA0161211NA7561211

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