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Engine Coolant Breather Line. Porsche 95B.2 Macan S 3.0L Petrol 2019-21 - PAC121692A
PAC121692A/1
Vehicle Group
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
Information
Engine Coolant Breather Line.
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAC121692A
The product you are viewing cross references to these numbers
The Engine Coolant Breather Line is a OE MATCH cooling system component designed to vent trapped air and regulate pressure within the engine’s coolant circuit. This breather hose ensures proper coolant circulation by preventing air pockets that can disrupt cooling efficiency.
Fits:
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
Diagram Ref No 23
What This Product Does:
- Allowing trapped air and vapour to vent from the coolant circuit
- Preventing airlocks that reduce cooling efficiency
- Maintaining correct cooling system pressure
- Supporting steady coolant circulation
- Helping stabilise engine operating temperature
Symptoms Of Wear Or Failure:
- Coolant leaks near the hose or fittings
- Cracked or brittle hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Difficulty bleeding the cooling system
- Fluctuating or rising engine temperature
- Coolant residue around hose connections
Why Replacement Matters:
- Maintain correct cooling system pressure
- Prevent airlocks and circulation issues
- Protect the engine from overheating damage
- Restore reliable coolant flow
- Avoid costly repairs caused by cooling system failure
Related reference numbers
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PAC121692A
PAC121692A
The product you are viewing cross references to these numbers
Price: €33.02
Arriving soon
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Information
Breather Line.
The Breather Line is a OE MATCH coolant vent tube designed to manage air, vapour, and overflow flow within the engine cooling system. This breather line connects key cooling circuit components to help regulate pressure changes and maintain proper coolant circulation, supporting stable engine operating temperatures and efficient cooling performance. It provides precise fitment, secure sealing, and long-term resistance to heat and coolant exposure. Designed for Porsche models 971.1 / 971.2 / 9YA, this breather line is essential for maintaining cooling system reliability and preventing pressure-related coolant issues.
Fits:
Diagram Ref No 23
What This Product Does:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A712169201
The product you are viewing cross references to these numbers
The Breather Line is a OE MATCH coolant vent tube designed to manage air, vapour, and overflow flow within the engine cooling system. This breather line connects key cooling circuit components to help regulate pressure changes and maintain proper coolant circulation, supporting stable engine operating temperatures and efficient cooling performance. It provides precise fitment, secure sealing, and long-term resistance to heat and coolant exposure. Designed for Porsche models 971.1 / 971.2 / 9YA, this breather line is essential for maintaining cooling system reliability and preventing pressure-related coolant issues.
Fits:
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
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- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
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- Porsche 971.2 Panamera 4 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S 2.9L V6 2021-23
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- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
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Diagram Ref No 23
What This Product Does:
- Vents trapped air and coolant vapour from the cooling system.
- Helps regulate cooling system pressure as temperatures rise and fall.
- Routes overflow coolant between the expansion tank and the main cooling loop.
- Prevents air pockets that could reduce coolant circulation and cooling efficiency.
- Cracks or loose fittings may cause coolant seepage near the vent line or expansion tank area.
- A leaking breather line can gradually reduce coolant levels, requiring frequent top-ups.
- If the line cannot vent properly, excess pressure may build up in the cooling system.
- Low coolant or overheating warnings may appear if leakage or pressure issues develop.
- A noticeable coolant odor in the engine bay often indicates leakage from the vent line.
- Common signs include cracking or splitting, brittle or hardened material, damaged connectors, coolant residue buildup.
- Air entering the cooling system or improper venting can reduce cooling efficiency.
Why Replacement Matters:
- Prevents coolant leaks that can lead to low coolant levels and reduced cooling performance.
- Maintains correct venting, allowing air and vapour to escape and preventing pressure buildup.
- Helps avoid engine overheating, since trapped air or coolant loss can disrupt circulation.
- Prevents air pockets in the cooling system, improving heat transfer efficiency.
- Protects surrounding components, as coolant leaks can damage wiring, sensors, and nearby engine parts.
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- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Information
Coolant Hose.
Keep your engine operating at the right temperature with this OE MATCH coolant hose — engineered for reliability and long-lasting performance. Designed specifically for select Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YA.2 Cayenne models, this hose plays a vital role in your vehicle’s cooling system by circulating coolant and supporting efficient heat transfer.
Fits:
Diagram Ref No 5
What This Product Does:
Why Replacement Matters:
Replacing a worn coolant hose is essential to maintaining proper engine cooling and preventing costly damage. A failing hose can lead to coolant leaks, overheating, and reduced heater performance. If left unaddressed, it may cause severe engine overheating, which can result in serious repairs such as head gasket failure or engine damage. Installing a new hose helps ensure reliable coolant circulation, stable engine temperature, and long-term vehicle performance.
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Keep your engine operating at the right temperature with this OE MATCH coolant hose — engineered for reliability and long-lasting performance. Designed specifically for select Porsche 95B.2 Macan / 971.1 / 971.2 / 976 Panamera / 9YA / 9YA.2 Cayenne models, this hose plays a vital role in your vehicle’s cooling system by circulating coolant and supporting efficient heat transfer.
Fits:
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- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
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- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
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- Porsche 976 Panamera 4 V6 2.9L 2023>>
- Porsche 976 Panamera 4 E-Hybrid V6 2.9L 2023>>
- Porsche 976 Panamera 4S E-Hybrid V6 2.9L 2023>>
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
Diagram Ref No 5
What This Product Does:
- Transfers coolant (antifreeze) between engine components
- Regulates engine temperature by maintaining proper coolant flow
- Prevents overheating by helping move heat away from the engine
- Supports cabin heating by routing warm coolant to the heater core
- Coolant leaks or visible fluid under the vehicle
- Engine overheating or rising temperature gauge
- Low coolant warning light or frequent coolant top-offs
- Sweet coolant smell from the engine bay
- Steam coming from under the hood
- Weak or no cabin heat
- Cracks, swelling, or soft/brittle hose material
- Coolant residue or dampness around hose connections
Why Replacement Matters:
Replacing a worn coolant hose is essential to maintaining proper engine cooling and preventing costly damage. A failing hose can lead to coolant leaks, overheating, and reduced heater performance. If left unaddressed, it may cause severe engine overheating, which can result in serious repairs such as head gasket failure or engine damage. Installing a new hose helps ensure reliable coolant circulation, stable engine temperature, and long-term vehicle performance.
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9A712105210
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