HomeBelts and Cooling > Hoses and PipesContinental 66503 Radiator Coolant Hose
Part #: 66503

Continental 66503 Radiator Coolant Hose

Molded, Lower, Upper - Pipe To Radiator, Lower - Pipe To Radiator, and Upper
⚙️ 68 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded, Lower, Upper - Pipe To Radiator, Lower - Pipe To Radiator, and Upper
🚗Fitment: Buick, Chevrolet, Lexus, and Toyota, CT200h, Impala, Malibu, Malibu Limited, Prius, Prius Plug-In, Prius V, and Regal
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Overview of Continental Molded Radiator Coolant Hose 66503

The Continental Molded Radiator Coolant Hose 66503 is designed to provide reliable coolant flow for select Buick, Chevrolet, Lexus, and Toyota vehicles. Engineered with precise dimensions, this hose ensures a secure fit and optimal performance in cooling systems.

  • Hose 1 inside diameter: 1.190 inches
  • Hose 1 length: 15.790 inches
  • End 2 hose inside diameter: 1.310 inches
  • Compatible with multiple Buick, Chevrolet, Lexus, and Toyota models
  • Part number 66503 for accurate identification

Detailed Product Description

This radiator coolant hose from Continental's Molded product line features a molded design that matches original equipment specifications. The hose measures 15.790 inches in length with an inside diameter of 1.190 inches on one end and 1.310 inches on the other, allowing for a precise fit in the cooling system. The Molded line focuses on delivering hoses that maintain shape and durability under heat and pressure, making it suitable for vehicles requiring exact hose dimensions and reliable coolant transfer.

Compatible Vehicles and Applications

This radiator coolant hose 66503 is compatible with a range of vehicles including Buick Regal, Chevrolet Impala, Malibu, and Malibu Limited, as well as Lexus CT200h and Toyota Prius, Prius Plug-In, and Prius V models. It is designed to replace worn or damaged radiator hoses in these vehicles, ensuring proper coolant circulation and engine temperature regulation.

  • Prevents coolant leaks caused by cracked or swollen hoses
  • Replaces hoses with improper fit or degraded material
  • Restores proper coolant flow to avoid engine overheating
  • Addresses issues related to hose collapse or blockage

Installation Notes and Tips

When installing the Continental Molded Radiator Coolant Hose 66503, ensure the hose clamps are securely tightened to prevent leaks. Verify the hose orientation matches the original routing to maintain proper coolant flow. It is recommended to inspect adjacent hoses and cooling system components during replacement to ensure overall system integrity.

Quality Assurance and Warranty

Continental's Molded product line adheres to strict manufacturing standards to meet or exceed OEM specifications. While specific warranty details for part number 66503 are not provided, Continental products typically undergo rigorous quality control to ensure durability and performance in automotive cooling systems.

BrandContinental
Part Number66503
PositionMolded, Lower, Upper - Pipe To Radiator, Lower - Pipe To Radiator, and Upper
Hose 1 Inside Diameter1.190
Hose 1 Length15.790
End 2 Hose Inside Diameter1.310

This part fits 68 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2022ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2021ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2020ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2019ChevroletImpala2.5LL4LowerCut to Fit; Molded
2019ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2018ChevroletImpala2.5LL4LowerCut to Fit; Molded
2018ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2017BuickRegal2.0LL4LowerMolded
2017ChevroletImpala2.5LL4LowerCut to Fit; Molded
2017ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2017LexusCT200h1.8LL4Upper - Pipe To RadiatorMolded
2017LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2017ToyotaPrius1.8LL4UpperMolded
2017ToyotaPrius V1.8LL4UpperMolded
2016BuickRegal2.0LL4LowerMolded
2016ChevroletImpala2.5LL4LowerCut to Fit; Molded
2016ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2016ChevroletMalibu Limited2.5LL4LowerCut to Fit; Molded
2016LexusCT200h1.8LL4Upper - Pipe To RadiatorMolded
2016LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2016ToyotaPrius1.8LL4UpperMolded
2016ToyotaPrius V1.8LL4UpperMolded
2015BuickRegal2.0LL4LowerMolded
2015ChevroletImpala2.5LL4LowerCut to Fit; Molded
2015ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2015ChevroletMalibu2.5LL4LowerCut to Fit; Molded
2015LexusCT200h1.8LL4Upper - Pipe To RadiatorMolded
2015LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2015ToyotaPrius1.8LL4UpperMolded
2015ToyotaPrius1.8LL4Upper - Pipe To RadiatorMolded
2015ToyotaPrius Plug-In1.8LL4UpperMolded
2015ToyotaPrius Plug-In1.8LL4Upper - Pipe To RadiatorMolded
2015ToyotaPrius V1.8LL4UpperMolded
2015ToyotaPrius V1.8LL4Upper - Pipe To RadiatorMolded
2014BuickRegal2.0LL4LowerMolded
2014ChevroletImpala2.5LL4LowerCut to Fit; Molded
2014ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2014ChevroletMalibu2.5LL4LowerCut to Fit; Molded
2014LexusCT200h1.8LL4UpperMolded
2014LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2014ToyotaPrius1.8LL4UpperMolded
2014ToyotaPrius1.8LL4Lower - Pipe To RadiatorMolded
2014ToyotaPrius Plug-In1.8LL4UpperMolded
2014ToyotaPrius Plug-In1.8LL4Lower - Pipe To RadiatorMolded
2014ToyotaPrius V1.8LL4UpperMolded
2014ToyotaPrius V1.8LL4Lower - Pipe To RadiatorMolded
2013ChevroletMalibu2.0LL4LowerCut to Fit; Molded
2013ChevroletMalibu2.5LL4LowerCut to Fit; Molded
2013LexusCT200h1.8LL4UpperMolded
2013LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2013ToyotaPrius1.8LL4UpperMolded
2013ToyotaPrius1.8LL4Lower - Pipe To RadiatorMolded
2013ToyotaPrius Plug-In1.8LL4UpperMolded
2013ToyotaPrius Plug-In1.8LL4Lower - Pipe To RadiatorMolded
2013ToyotaPrius V1.8LL4UpperMolded
2013ToyotaPrius V1.8LL4Lower - Pipe To RadiatorMolded
2012LexusCT200h1.8LL4Upper - Pipe To RadiatorMolded
2012LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2012ToyotaPrius1.8LL4UpperMolded
2012ToyotaPrius1.8LL4Lower - Pipe To RadiatorMolded
2012ToyotaPrius Plug-In1.8LL4UpperMolded
2012ToyotaPrius Plug-In1.8LL4Lower - Pipe To RadiatorMolded
2012ToyotaPrius V1.8LL4UpperMolded
2012ToyotaPrius V1.8LL4Lower - Pipe To RadiatorMolded
2011LexusCT200h1.8LL4Upper - Pipe To RadiatorMolded
2011LexusCT200h1.8LL4Lower - Pipe To RadiatorMolded
2011ToyotaPrius1.8LL4Lower - Pipe To RadiatorMolded
2010ToyotaPrius1.8LL4Lower - Pipe To RadiatorMolded

* 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:

165713714022875328231053922341697223766240967252772778B007Q1U2B8

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