Gates 18705 HVAC Heater Hose
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Gates
 Molded Heater Hose

Gates 18705 HVAC Heater Hose

Brand Gates 18705
Position Heater To Pipe-2
0
Yes
Branch Quantity 0
Centerline Length 12.5
Centerline Length 318
Centerline Length (in) 12.5
Centerline Length (mm) 318
End 1 Inside Diameter .62
End 1 Inside Diameter 16
End 2 Inside Diameter .62
End 2 Inside Diameter 16
Material EPDM
Molded Yes
Number of Quick Connect Fittings 0
Product line Molded Heater Hose
Fits Buick, Oldsmobile, Pontiac, Chevrolet, Mercury, Subaru, Ford, Dodge, Eagle, Lincoln, Mitsubishi, Plymouth, and Mazda · 75 vehicles

OEM-style molded hose. Factory-molded for a precise fit and clean routing.

EPDM construction. Resists heat and coolant exposure in demanding service.

Versatile application. Suitable for coolant, water, air, and marine use.

Cross-references ACI 87621, Continental 63138 and Gates 18705 for the same application. See all 19.

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Gates 18705 Molded Heater Hose Overview

Gates 18705 is a molded heater hose built for tight engine bays where a straight hose will not route cleanly. This OEM-style coolant hose is formed to match factory routing and is suitable for coolant, water, and air service, with marine application approval.

With a 16 mm (0.62 in) inside diameter at both ends and a 318 mm (12.5 in) centerline length, this Gates molded heater hose is a direct-style solution for vehicles that need precise hose shape and reliable fitment. It is commonly searched as a molded heater hose for Ford Mustang, Lincoln Mark VII, and Mercury Capri applications.

  • Brand: Gates Molded Heater Hose
  • Part number: 18705
  • EPDM construction for heater and coolant service
  • Factory-molded, OEM-style routing for compact engine compartments
  • 16 mm (0.62 in) inside diameter at both ends
  • 318 mm (12.5 in) centerline length
  • Approved for coolant, water, air, and marine applications
  • Cross-reference: Continental 63138

Product Line Details

Gates Molded Heater Hose products are shaped to follow original hose paths in vehicles with limited clearance around the engine, thermostat housing, intake manifold, and heater pipe connections. The molded design helps maintain the intended routing on applications such as Ford Mustang heater hose replacement and Lincoln Mark VII heater hose service.

Fitment and Application

  • Fits 1994-1998 Buick Skylark, Heater To Pipe-2
  • Fits 1994-1998 Oldsmobile Achieva, Heater To Pipe-2
  • Fits 1994-1998 Pontiac Grand Am, Heater To Pipe-2
  • Fits 1994-1996 Chevrolet Corsica, Heater To Pipe-1
  • Fits 1995 Buick Regal, Heater To Pipe-2
  • Fits 1995 Oldsmobile Cutlass, Heater To Pipe-2
  • Fits 1995 Oldsmobile Cutlass Supreme, Heater To Pipe-2
  • Fits 1995 Pontiac Grand Prix, Heater To Pipe-2
  • Fits 1991-1994 Mercury Capri, Heater To Pipe
  • Fits 1987-1993 Ford Mustang, Heater To Pipe-2
  • Fits 1989-1992 Dodge Colt, Heater To Tee
  • Fits 1990-1992 Lincoln Mark VII, Heater To Pipe-2
  • Fits 1989-1992 Mitsubishi Mirage, Heater To Tee
  • Fits 1987-1990 Mercury Tracer, Heater To Pipe
  • Fits 1986-1989 Lincoln Mark VII, Heater To Pipe-2
  • Fits 1988-1989 Mazda 323, Heater To Pipe-1
  • Fits 1987-1988 Dodge Colt, Heater To Thermostat
  • Fits 1984 Dodge Colt, Heater To Thermostat
  • Fits 1986-1988 Ford Thunderbird, Heater To Pipe-1
  • Fits 1986-1988 Mercury Cougar, Heater To Pipe-1
  • Fits 1986-1987 Lincoln Continental, Heater To Engine
  • Fits 1986 Ford Mustang, Heater To Pipe-2
  • Fits 1985 Lincoln Continental, Heater To Intake Manifold
  • Fits 1985 Lincoln Mark VII, Heater To Intake Manifold
  • Fits 1984 Dodge Colt, Heater To Pipe
  • Fits 1984 Lincoln Continental, Heater To Engine
  • Fits 1984 Lincoln Mark VII, Heater To Engine
  • Fits 1982 Mazda 626, Thermostat To Water Pump
  • Fits 1981 Mazda 626, Water Pump To Thermostat

What This Hose Helps Address

  • Cracked or heat-aged heater hose routing in compact engine compartments
  • Coolant leaks at molded hose bends and connection points
  • Poor hose alignment after a previous repair or replacement
  • Service needs on heater, thermostat, intake manifold, or water pump connections
  • Replacement for worn OEM-style molded coolant hose routing

Installation Notes and Tips

Verify the end inside diameter, centerline length, and molded shape against the original hose before installation. This part is listed for multiple positions, including Heater To Pipe, Heater To Tee, Heater To Thermostat, Heater To Engine, Heater To Intake Manifold, Thermostat To Water Pump, and Water Pump To Thermostat, so matching the exact routing on the vehicle is important.

Inspect adjoining pipes, tees, clamps, and thermostat housing surfaces for corrosion or damage before installing the new hose. Confirm the hose path clears belts, pulleys, and nearby components in tight engine bays.

Quality Assurance

Gates is known for OE-style hose construction and molded routing used in automotive cooling and HVAC service. Part number 18705 is built with EPDM material and factory-molded shape to support consistent fitment on the listed applications.

Related reading

This part fits 75 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1998BuickSkylark3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1998OldsmobileAchieva3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1998PontiacGrand Am3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1997BuickSkylark3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1997OldsmobileAchieva3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1997PontiacGrand Am3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1996BuickSkylark3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1996ChevroletCorsica3.1LV6GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1996OldsmobileAchieva3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1996PontiacGrand Am3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995BuickRegal3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995BuickSkylark3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995ChevroletCorsica3.1LV6GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995OldsmobileAchieva3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995OldsmobileCutlass3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995OldsmobileCutlass Supreme3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995PontiacGrand Am3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1995PontiacGrand Prix3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1994BuickSkylark3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1994ChevroletCorsica3.1LV6GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1994MercuryCapri1.6LL4GASHeater To PipeMolded Heater Hose
1994OldsmobileAchieva3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1994PontiacGrand Am3.1LV6GASHeater To Pipe-2Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1993FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1993MercuryCapri1.6LL4GASHeater To PipeMolded Heater Hose
1992DodgeColt1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1992FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1992LincolnMark VII5.0LV8GASHeater To Pipe-2Molded Heater Hose
1992MercuryCapri1.6LL4GASHeater To PipeMolded Heater Hose
1992MitsubishiMirage1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1992MitsubishiMirage1.6LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1991DodgeColt1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1991FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1991LincolnMark VII5.0LV8GASHeater To Pipe-2Molded Heater Hose
1991MercuryCapri1.6LL4GASHeater To PipeMolded Heater Hose
1991MitsubishiMirage1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1991MitsubishiMirage1.6LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1990DodgeColt1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1990FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1990LincolnMark VII5.0LV8GASHeater To Pipe-2Molded Heater Hose
1990MercuryTracer1.6LL4GASHeater To PipeMolded Heater Hose
1990MitsubishiMirage1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1989DodgeColt1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1989FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1989LincolnMark VII5.0LV8GASHeater To Pipe-2W/A.C.; W/O Auto. Temp. Control; Cut to fit; Molded Heater Hose
1989Mazda3231.6LL4GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1989MercuryTracer1.6LL4GASHeater To PipeMolded Heater Hose
1989MitsubishiMirage1.5LL4GASHeater To TeeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988DodgeColt1.5LL4GASHeater To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1988FordThunderbird5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988LincolnMark VII5.0LV8GASHeater To Pipe-2W/A.C.; W/O Auto. Temp. Control; Cut to fit; Molded Heater Hose
1988Mazda3231.6LL4GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988MercuryCougar5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1988MercuryTracer1.6LL4GASHeater To PipeMolded Heater Hose
1987DodgeColt1.5LL4GASHeater To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987FordMustang5.0LV8GASHeater To Pipe-2HVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1987FordThunderbird5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987LincolnContinental5.0LV8GASHeater To EngineW/Auto. Temp. Control; Cut to fit; Molded Heater Hose
1987LincolnMark VII5.0LV8GASHeater To Pipe-2W/A.C.; W/O Auto. Temp. Control; Cut to fit; Molded Heater Hose
1987MercuryCougar5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1987MercuryTracer1.6LL4GASHeater To PipeMolded Heater Hose
1986FordMustang5.0LV8GASHeater To Pipe-2Cut-to-size heater hose suitable for air conditioning systems.; Molded Heater Hose
1986FordThunderbird5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1986LincolnContinental5.0LV8GASHeater To EngineW/Auto. Temp. Control; Cut to fit; Molded Heater Hose
1986LincolnMark VII5.0LV8GASHeater To Pipe-2W/A.C.; W/O Auto. Temp. Control; Cut to fit; Molded Heater Hose
1986MercuryCougar5.0LV8GASHeater To Pipe-1Radiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1985LincolnContinental5.0LV8GASHeater To Intake ManifoldW/Auto. Temp. Control; Cut to fit; Molded Heater Hose
1985LincolnMark VII5.0LV8GASHeater To Intake ManifoldW/Auto. Temp. Control; Cut to fit; Molded Heater Hose
1984DodgeColt1.4LL4GASHeater To ThermostatRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1984DodgeColt1.6LL4GASHeater To PipeRadiator and HVAC compatible coolant and heater hose.; Molded Heater Hose
1984LincolnContinental5.0LV8GASHeater To EngineWith Automatic Temperature Control; Molded Heater Hose
1984LincolnMark VII5.0LV8GASHeater To EngineWith Automatic Temperature Control; Molded Heater Hose
1982Mazda6262.0LL4GASThermostat To Water PumpHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
1981Mazda6262.0LL4GASWater Pump To ThermostatHVAC heater hose with A/C, fits Serpentine Belt application.; Molded Heater Hose
Directly replaces or cross-references 19 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 87621Continental — 63138Gates — 187051070516030M2257783722598982225777837772007550808661211B09261212AC87621E6LY 18472 BE6LY 18472 CE6LY 18472 CAE7GZ 18472 BE9LY 18472 BKH195MB272300