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06K 121 143
06K 121 143 (2)
06K 121 143
06K 121 143 (2)

Coolant Hose Adapter – 06K 121 143 (OE)

$5.25

  • Description
  • Additional information
  • Fits These Cars

Description

Product Description

The 06K121143 Coolant Hose Adapter (OE) is a genuine-spec replacement fitting used on select Volkswagen and Audi vehicles. This adapter serves as a critical junction point in the cooling system, allowing for a secure and sealed connection between coolant hoses and engine components (such as the cylinder head or water pump housing). It ensures that coolant is routed correctly and maintained under pressure without leaks.

Over time, the original plastic or composite adapter is subjected to extreme heat cycles and vibration, which can cause the material to become brittle, warp, or develop hairline cracks. This often leads to persistent coolant seepage, low-coolant warnings, and potential engine overheating. Replacing the failing unit with this OE-quality 06K121143 adapter restores a factory-tight seal and helps maintain the integrity of the cooling system.

  • OEM reference: 06K 121 143
  • OE-quality construction for precise fitment and reliable sealing
  • Engineered to withstand high engine temperatures and cooling system pressure
  • Precision-molded connection points for a secure, leak-free hose interface
  • Direct-fit replacement; no modifications required to the cooling system
  • Helps prevent coolant loss and protects the engine from overheating

Applications

Used on select Volkswagen and Audi models that specify cooling hose adapter part number 06K121143. This is commonly found on various 1.8T and 2.0T EA888 engines; please confirm compatibility via VIN or parts catalog to ensure this matches your specific cooling system layout.

Service Notes

  • It is highly recommended to replace any associated O-rings and hose clamps during installation to ensure a long-lasting, leak-free seal.
  • Refill the system with the correct VW/Audi-approved coolant and properly bleed the air from the cooling system after service.
  • Inspect nearby plastic coolant flanges and hoses; replacing aging components together can prevent future leaks.

Additional information

Weight 0.80 lbs
Dimensions 6.0 × 4.0 × 3.0 in

No fitment data available.