HomeBelts and Cooling > Hoses and PipesContinental 66231 Radiator Coolant Hose - Upper
Part #: 66231

Continental 66231 Radiator Coolant Hose - Upper

Molded, Upper
⚙️ 14 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$49.51Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded, Upper
🚗Fitment: Toyota, Highlander, Sienna, and Tundra
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Radiator Coolant Hose for Toyota Vehicles

The Continental Molded Radiator Coolant Hose 66231 is designed to meet the cooling system needs of select Toyota models. Engineered with precise dimensions, this hose ensures proper coolant flow and system integrity for your Toyota Highlander, Sienna, and Tundra.

  • Inside diameter of 1.310 inches for both ends
  • Length of 16.5 inches for accurate fitment
  • Constructed to maintain coolant system pressure and temperature
  • Compatible with Toyota Highlander, Sienna, and Tundra models
  • Part number 66231 for easy identification and replacement

About the Continental Molded Product Line

The Molded line from Continental focuses on precision-engineered hoses designed to match original equipment specifications. This ensures consistent performance and durability in demanding automotive cooling applications. The Molded Radiator Coolant Hose 66231 is manufactured to provide a reliable seal and fit, reducing the risk of leaks and coolant loss in Toyota vehicles.

Product Details and Specifications

This radiator coolant hose features an inside diameter of 1.310 inches on both ends, allowing for a secure connection to the cooling system components. With a length of 16.5 inches, it is tailored to fit the routing requirements of the Toyota Highlander, Sienna, and Tundra models. The hose is designed to withstand the thermal and pressure conditions typical in radiator coolant systems, helping maintain engine temperature regulation.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses
  • Resolving coolant leaks that cause engine overheating
  • Addressing hose swelling or softening due to age or heat exposure
  • Maintaining proper coolant flow in Toyota Highlander, Sienna, and Tundra vehicles
  • Ensuring system integrity after cooling system repairs or upgrades

Installation Notes and Tips

When installing the Continental Molded Radiator Coolant Hose 66231, ensure the hose is routed correctly to avoid kinks or contact with moving parts. Verify that the inside diameter matches the radiator and engine fittings for a secure seal. It is recommended to inspect hose clamps and replace them if necessary to prevent leaks. Always allow the engine to cool before removing or installing coolant hoses to avoid injury.

Quality Assurance and Warranty

Continental manufactures the Molded Radiator Coolant Hose 66231 to meet stringent quality standards, ensuring durability and performance. While specific warranty details are not provided, Continental products typically adhere to OEM quality requirements, offering reliable service life when installed and maintained properly.

BrandContinental
Part Number66231
PositionMolded, Upper
Hose 1 Inside Diameter1.310
Hose 1 Length16.500
End 2 Hose Inside Diameter1.310

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2024ToyotaSienna2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2023ToyotaSienna2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2022ToyotaSienna2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2021ToyotaHighlander2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2021ToyotaSienna2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2020ToyotaHighlander2.5LL4N/AEngine Cooling, Left, Adapter to Outlet Flange; Molded
2014ToyotaTundra4.0LV6UpperMolded
2013ToyotaTundra4.0LV6UpperMolded
2012ToyotaTundra4.0LV6UpperMolded
2011ToyotaTundra4.0LV6UpperMolded
2010ToyotaTundra4.0LV6UpperMolded
2009ToyotaTundra4.0LV6UpperMolded
2008ToyotaTundra4.0LV6UpperMolded
2007ToyotaTundra4.0LV6UpperMolded

* 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:

165710P16022690M232872372472303B004TB36TI

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