Gates
Molded Coolant Hose

Gates 51398 Radiator Coolant Hose - Heater Control Valve To Tee-3 or Heater To Tee-3

Brand Gates 51398
Position Heater Control Valve To Tee-3
1
Yes
Branch Quantity 0
Centerline Length 16.5
Centerline Length 419
Contains Spring No
End 1 Inside Diameter .75
End 1 Inside Diameter 19
End 2 Inside Diameter .85
End 2 Inside Diameter 22
Material EPDM, Plastic, Steel
Modular Components Female Quick Connector
Modular Hose Yes
Molded Yes
Number of Quick Connect Fittings 1
Product line Molded Coolant Hose
Fits Cadillac and Chevrolet · 16 vehicles

Molded coolant hose. Shaped for a precise fit and cleaner routing.

Modular design. Includes an integrated female quick connector for easier assembly.

OE-style construction. Built to match OEM specifications with integrated components.

Cross-references Gates 51398, 20801S and 1818631 for the same application. See all 5.

$26.16Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $26.16
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Free returns within 60 days if it doesn't fit when fitment is verified.

Gates Molded Coolant Hose 51398

The Gates 51398 molded coolant hose is built for specific OE-style applications in the cooling system. It uses EPDM, plastic, and steel construction with a molded shape, a female quick connector, and one quick-connect fitting for a precise service replacement.

Gates Molded Coolant Hose products are application-specific modular coolant hoses that mirror OEM-style layouts and integrated components. This design helps maintain the original routing and connection style used on select Cadillac ELR and Chevrolet Volt heater circuit applications.

Key Features

  • Part number 51398 molded coolant hose for select heater circuit applications
  • Application-specific molded design for OE-style routing
  • EPDM, plastic, and steel construction
  • Female quick connector with one quick-connect fitting
  • End inside diameters: 19 mm (.75 in) and 22 mm (.85 in)
  • Centerline length: 419 mm (16.5 in)
  • Compatible with 2011-2015 Chevrolet Volt and 2014-2016 Cadillac ELR heater hose routing

Detailed Description

This Gates molded coolant hose is engineered for select modular cooling system layouts where the hose must follow the original path and connection style. The 51398 part number is listed for Chevrolet Volt and Cadillac ELR heater circuit locations, including heater control valve to tee-3 and heater to tee-3 positions. Its molded construction and integrated quick connector support a direct replacement approach for the original hose configuration.

For buyers searching for a 2011-2015 Chevrolet Volt heater hose or a 2014-2016 Cadillac ELR molded coolant hose, this part provides the OE-style dimensions and connector layout needed for the application. Gates 51398 is also cross-referenced to Monroe Shocks & Struts 172286 for the same application.

What This Hose Helps Address

  • Coolant leaks at a cracked or aged molded hose
  • Improper fit from a universal hose replacement
  • Connection issues at the quick-connect interface
  • Routing problems caused by a non-molded hose shape
  • Heater circuit service needs on select Volt and ELR models

Installation Notes and Tips

Verify the hose routing, connector style, and end diameters before installation. Match the vehicle position exactly to the listed heater control valve to tee-3 or heater to tee-3 application. Inspect adjoining plastic fittings and sealing surfaces for wear or damage before connecting the new hose.

Quality Assurance

Gates is a recognized aftermarket supplier of modular coolant hose assemblies, and this hose is manufactured to application-specific OE-style specifications for the listed vehicles.

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2016CadillacELR1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2016CadillacELR1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2015CadillacELR1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2015CadillacELR1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2015ChevroletVolt1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2015ChevroletVolt1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2014CadillacELR1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2014CadillacELR1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2014ChevroletVolt1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2014ChevroletVolt1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2013ChevroletVolt1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2013ChevroletVolt1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2012ChevroletVolt1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2012ChevroletVolt1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
2011ChevroletVolt1.4LL4ELECTRIC/GASHeater Control Valve To Tee-3Molded Coolant Hose
2011ChevroletVolt1.4LL4ELECTRIC/GASHeater To Tee-3Molded Coolant Hose
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — 5139820801S181863120893310R38114