Gates 12166 HVAC Heater Hose - Heater Outlet
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Gates
 Molded Heater Hose

Gates 12166 HVAC Heater Hose - Heater Outlet

Brand Gates 12166
Position Heater Outlet
0
Yes
Branch Quantity 0
Centerline Length 15.64
Centerline Length 397
Centerline Length (in) 15.64
Centerline Length (mm) 397
End 1 Inside Diameter .73
End 1 Inside Diameter 19
End 2 Inside Diameter .73
End 2 Inside Diameter 19
Material EPDM
Molded Yes
Number of Quick Connect Fittings 0
Product line Molded Heater Hose
Fits Hyundai · 5 vehicles

OEM-style molded hose. Factory-molded for a precise fit in tight engine compartments.

EPDM construction. Resists heat and wear for coolant, water, and air use.

Versatile application. Approved for marine service as well as HVAC use.

Cross-references 13166, 16708M and 97312C2000 for the same application. See all 3.

$26.83Free shipping
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Order total $26.83
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Gates Molded Heater Hose 12166 Overview

Gates 12166 is a factory-molded HVAC heater hose built in an OEM-style shape for tighter engine compartments. It is made from EPDM and measures 19 mm (0.73 in) at both ends with a 397 mm (15.64 in) centerline length.

This molded coolant hose is used for coolant, water, and air applications, and it is also approved for marine use. For Hyundai Sonata service, it matches the heater outlet routing found on 2015-2018 models and 2019 vehicles listed for this application.

Key Features

  • Brand: Gates Molded Heater Hose
  • Part number: 12166
  • Factory-molded, OE-style hose shape
  • EPDM construction for HVAC and coolant routing
  • End I.D.: 19 mm (0.73 in) on both ends
  • Centerline length: 397 mm (15.64 in)
  • Approved for coolant, water, air, and marine applications

Fitment Details

Compatible With 2015-2018 Hyundai Sonata, heater outlet. Compatible With 2019 Hyundai Sonata, heater outlet.

This part cross-references 13166 and 16708M for the same application.

What It Helps Address

  • Cracked or heat-aged heater hose routing
  • Coolant leaks at a molded hose section
  • Restricted flow from a damaged hose bend
  • Improper fit in a tight engine bay hose path
  • Service replacement for a heater outlet hose on Hyundai Sonata models

Installation Notes and Tips

Verify the hose path, end diameters, and centerline length before installation. Match the molded shape to the original routing on the vehicle to maintain proper clearance around nearby components. Gates 12166 is listed for the heater outlet position on 2015-2018 Hyundai Sonata and 2019 Hyundai Sonata applications.

Quality Assurance

Gates Molded Heater Hose 12166 is built as an OEM-style replacement hose using EPDM material and a factory-molded profile for accurate routing in compact engine compartments. The design reflects Gates’ focus on service parts for coolant and HVAC hose applications.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2019HyundaiSonata1.6LL4GASHeater OutletAvailable Until Stock Depleted; Molded Heater Hose
2018HyundaiSonata1.6LL4GASHeater OutletMolded Heater Hose
2017HyundaiSonata1.6LL4GASHeater OutletMolded Heater Hose
2016HyundaiSonata1.6LL4GASHeater OutletMolded Heater Hose
2015HyundaiSonata1.6LL4GASHeater OutletMolded Heater Hose
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1316616708M97312C2000