Continental 66655 Radiator Coolant Hose - Upper

Brand Continental 66655
Position Upper
Hose 1 Inside Diameter 1.310
Hose 1 Length 25.790
End 2 Hose Inside Diameter 1.310
Product line Molded
Fits Hyundai and Kia · 11 vehicles

Molded design. Exact OEM configuration for accurate routing and fit.

EPDM construction. Tube and cover with synthetic reinforcement for coolant transfer.

SAE-rated hose. Meets or exceeds SAE 20R4EC Class D1 specifications.

Cross-references 254143Q000, 254143R200 and B007Q1VKJG for the same application. See all 3.

$37.64Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $37.64
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Radiator Coolant Hose Overview

Continental 66655 is a molded radiator coolant hose built for vehicles that use an upper cooling-system hose with an exact OEM configuration. It transfers glycol-based coolant through the system and uses EPDM construction with synthetic reinforcement for specification-level durability.

Key Features

  • EPDM tube and cover with synthetic reinforcement
  • Meets or exceeds SAE 20R4EC Class D1 requirements
  • Exact OEM configuration for proper routing and fit
  • Molded design for the upper coolant hose application
  • Fits Kia Cadenza, Kia Optima, and Hyundai Sonata applications

Fitment Details

  • Fits 2014-2015 Kia Cadenza, upper; cut to fit; molded.
  • Fits 2011-2015 Kia Optima, upper; molded.
  • Fits 2011-2014 Hyundai Sonata, upper; molded.

What It Helps Address

  • Coolant leaks from a worn or cracked hose
  • Softening, swelling, or deterioration from heat and age
  • Poor hose routing caused by an incorrect shape
  • Cooling-system service needs on the upper hose circuit

Installation Notes

Verify hose routing, inside diameter, and length before installation. This molded hose is specified for upper cooling-system applications; follow the vehicle service procedure and inspect adjoining clamps and fittings during replacement.

Quality Assurance

Continental states that the hose construction meets or exceeds SAE 20R4EC Class D1 specifications. The molded OEM-style configuration is engineered for accurate fitment on the listed Kia and Hyundai applications. This part cross-references Hyundai/Kia numbers (e.g., 254143Q000, 254143R200) for the same application.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2015KiaCadenza3.3LV6UpperCut to Fit; Molded
2015KiaOptima2.0LL4UpperMolded
2014HyundaiSonata2.0LL4UpperMolded
2014KiaCadenza3.3LV6UpperCut to Fit; Molded
2014KiaOptima2.0LL4UpperMolded
2013HyundaiSonata2.0LL4UpperMolded
2013KiaOptima2.0LL4UpperMolded
2012HyundaiSonata2.0LL4UpperMolded
2012KiaOptima2.0LL4UpperMolded
2011HyundaiSonata2.0LL4UpperMolded
2011KiaOptima2.0LL4UpperMolded
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
254143Q000254143R200B007Q1VKJG