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Porsche > Engine Cooling > Coolant Hoses and Pipes > Coolant Hoses - Radiator Section >

Coolant Hose, Lower. Porsche 982 Boxster / Cayman 2017>>  ❭  982121049

Coolant Hose, Lower. Porsche 982 Boxster / Cayman 2017>> - 982121049
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Product Information
Product Information
Coolant Hose, Lower.
Ensure dependable cooling system performance with the Coolant Hose, Lower. This OE MATCH lower radiator hose is designed to carry coolant between the radiator and engine, supporting proper heat exchange and stable operating temperatures.

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Diagram Ref No 18

What This Product Does:

  • Returns cooled coolant from the radiator to the engine
  • Maintains continuous coolant circulation
  • Helps regulate engine operating temperature
  • Prevents overheating by supporting efficient heat exchange


Symptoms Of Wear Or Failure:

  • Coolant leaking beneath the vehicle
  • Engine overheating or fluctuating temperature gauge
  • Low coolant warning light
  • Frequent coolant top-offs
  • Steam from under the hood
  • Sweet coolant odor from the engine bay
  • Cracks, splits, or visible deterioration in the hose
  • Bulging or swelling, indicating internal weakening
  • Soft, mushy, or brittle rubber texture
  • Coolant residue around hose clamps or connection points


Why Replacement Matters:

  • The lower coolant hose plays a critical role in returning cooled coolant from the radiator back to the engine. If this hose becomes worn, cracked, or weakened, it can lead to coolant leaks and reduced circulation.
  • Failure to replace a damaged hose may result in overheating, engine performance issues, or costly repairs caused by coolant loss. Because the lower hose operates under constant heat and pressure, deterioration over time is normal.
  • Replacing it at the first signs of wear helps maintain proper coolant flow, protects the engine from overheating, and ensures reliable long-term cooling system performance.



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982121049
982121049

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