Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > Engine Cooling > Coolant Hoses and Pipes > Coolant Hoses - Radiator Section >

Breather Line For Radiator, RIGHT. Porsche 992.1 / 992.2 2019>>  ❭  992121466

Breather Line For Radiator, RIGHT. Porsche 992.1 / 992.2 2019>> - 992121466
2
Select your vehicle to check compatibility
992121466/1
Product Information
Product Information
Breather Line For Radiator, RIGHT.
Maintain proper cooling system ventilation and performance with the Breather Line for Radiator, RIGHT. This OE MATCH breather line is designed to vent trapped air and vapor from the right-side radiator circuit, helping ensure efficient coolant circulation and stable engine temperatures.

Fits:
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
  • Porsche 992.1 Turbo 3.8L 2020-24
  • Porsche 992.1 Turbo S 3.8L 2020-24
  • Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
  • Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
  • Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 GTS 3.6L 2024>>
  • Porsche 992.2 Carrera 4 GTS 3.6L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>
  • Porsche 992.2 Carrera 2 GTS 3.6L Cabriolet 2024>>
  • Porsche 992.2 Carrera 4 GTS 3.6L Cabriolet 2024>>
  • Porsche 992.2 Targa 4 GTS 3.6L 2024>>  

Diagram Ref No 15

What This Product Does:

  • Releases trapped air from the right-side radiator system
  • Helps prevent air pockets that can restrict coolant flow
  • Supports stable cooling system pressure
  • Maintains consistent engine temperature control
  • Reduces the risk of overheating

Symptoms Of Wear Or Failure:
  • Coolant leaks near the radiator or along the breather line
  • Low coolant warning light
  • Frequent coolant top-offs
  • Sweet coolant smell from the front of the vehicle
  • Coolant residue or staining around fittings or connections
  • Cracked, brittle, or weakened line material
  • Air trapped in the cooling system, causing gurgling sounds
  • Fluctuating engine temperature or inconsistent gauge readings
  • Overheating, especially after coolant service or refilling
  • Steam from under the hood in severe cases

Why Replacement Matters:
  • Replacing a worn radiator breather line is important because it helps the cooling system vent trapped air and maintain proper pressure. Over time, heat and coolant exposure can cause the line to become brittle, cracked, or leak.
  • If the breather line fails, air pockets may form in the radiator circuit, reducing coolant circulation and cooling efficiency. This can lead to coolant loss, unstable engine temperatures, and an increased risk of overheating.
  • Installing a new breather line helps prevent leaks, supports proper system bleeding, and ensures reliable engine cooling performance.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

992121466
992121466

The product you are viewing cross references to these numbers