HomeHVAC > Hoses and PipesGates 18074 HVAC Heater Hose - Heater To Water Pump, Valve To Engine or Valve To Water Pump
Part #: 18074

Gates 18074 HVAC Heater Hose - Heater To Water Pump, Valve To Engine or Valve To Water Pump

Molded Heater Hose, Valve To Engine, Valve To Water Pump, and Heater To Water Pump
⚙️ 10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Heater Hose, Valve To Engine, Valve To Water Pump, and Heater To Water Pump
🚗Fitment: Cadillac, Dodge, Jeep, and Plymouth, Caravan, Eldorado, Seville, Voyager, and Wrangler
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Overview of Gates Molded Heater Hose 18074

The Gates Molded Heater Hose 18074 is designed to provide reliable heating system performance for select Cadillac, Dodge, Jeep, and Plymouth vehicles. Engineered with durable EPDM material, this molded heater hose ensures a precise fit and long-lasting service in your HVAC system.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Molded design for exact fit and easy installation
  • End 1 inside diameter: 0.62 inches (16 mm)
  • End 2 inside diameter: 0.75 inches (19 mm)
  • Centerline length: 39.6 inches (1006 mm)
  • Compatible with multiple models including Cadillac Eldorado and Seville, Dodge Caravan, Jeep Wrangler, and Plymouth Voyager

Detailed Product Description

The Gates Molded Heater Hose 18074 is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features a molded construction that matches the original equipment specifications, ensuring a secure and leak-free connection within the HVAC system. With an end 1 inside diameter of 0.62 inches (16 mm) and an end 2 inside diameter of 0.75 inches (19 mm), the hose accommodates specific heater core and engine connections. The 39.6-inch (1006 mm) centerline length provides the correct routing for compatible vehicles, eliminating the need for modifications.

The Molded Heater Hose product line by Gates focuses on delivering precise fitment and durability for HVAC applications. This line is engineered to meet or exceed OEM standards, providing a reliable replacement option for factory heater hoses. The molded design reduces installation time and potential leaks compared to universal or cut-to-fit hoses.

Applications and Common Issues Addressed

  • Replacement of cracked or leaking heater hoses in Cadillac Eldorado and Seville models
  • Resolving heater core circulation problems in Dodge Caravan vehicles
  • Fixing coolant leaks causing HVAC system inefficiency in Jeep Wrangler
  • Restoring proper heater hose routing in Plymouth Voyager
  • Preventing overheating and coolant loss due to deteriorated hoses

Installation Notes and Tips

  • Verify hose dimensions and fitment with your vehicle’s specifications before installation
  • Ensure all clamps and connections are secure to prevent leaks
  • Drain coolant system prior to hose removal to avoid spills
  • Inspect surrounding components for wear or damage during replacement
  • Use proper tools to avoid damaging hose ends or fittings

Quality Assurance and Warranty

Gates Molded Heater Hose 18074 is manufactured to meet stringent quality standards, ensuring durability and performance in demanding automotive environments. The EPDM material and molded construction provide resistance to heat, pressure, and automotive fluids. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandGates
Part Number18074
PositionMolded Heater Hose, Valve To Engine, Valve To Water Pump, and Heater To Water Pump
MaterialEpdm
End 1 Inside Diameter.62
End 1 Inside Diameter16
End 2 Inside Diameter.75
End 2 Inside Diameter19
Centerline Length1006
Centerline Length39.6
Branch Quantity0
9839Yes
98450
Centerline Length (in)39.6
Centerline Length (mm)1006
MoldedYes
Number of Quick Connect Fittings0

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1990JeepWrangler2.5LL4GASHeater To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1989JeepWrangler2.5LL4GASHeater To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988JeepWrangler2.5LL4GASHeater To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987CadillacEldorado4.1LV8GASValve To EngineRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987CadillacSeville4.1LV8GASValve To EngineRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987DodgeCaravan2.6LL4GASValve To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987JeepWrangler2.5LL4GASHeater To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987PlymouthVoyager2.6LL4GASValve To Water PumpRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1986CadillacEldorado4.1LV8GASValve To EngineRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1986CadillacSeville4.1LV8GASValve To EngineRadiator and HVAC compatible coolant and heater hose.; 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:

10074163293018003L18074644436444687608E87608

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