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Porsche // Boxster 718 (982) 2017>> // Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
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- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Oil Breather Hose from Oil Tank
Maintain the integrity of your Porsche 911's crankcase
ventilation system with the Oil Breather Hose 93020738501. Designed to meet
original Porsche specifications, this essential engine hose helps manage
crankcase pressure and directs oil vapours through the engine's breather
system, contributing to optimal engine performance, reduced emissions, and
long-term reliability.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Diagram Ref No 2
Over time, breather hoses can become brittle, cracked, or contaminated due to prolonged exposure to heat and oil vapours. Replacing a worn oil breather hose helps prevent vacuum leaks, oil seepage, and potential engine running issues while ensuring the ventilation system operates as intended.
Suitable for a range of Porsche 911 models, this replacement breather hose is manufactured to provide a precise fit and dependable performance, making it an ideal solution during engine maintenance, restoration projects, or preventative servicing.
Key Features
- Direct replacement for Porsche part number 93020738501
- Helps maintain correct crankcase ventilation
- Supports efficient engine breathing and pressure regulation
- Resistant to heat, oil vapours, and engine bay conditions
- Precision fit for straightforward installation
- Ideal for maintenance, repair, and restoration projects
Why Replace Your Oil Breather Hose?
A deteriorated breather hose can contribute to vacuum leaks, poor idle quality, increased oil residue around the engine bay, and reduced ventilation efficiency. Replacing ageing hoses helps maintain engine health and supports the reliable operation expected from your Porsche 911.
Porsche 911 Engine Breather Hoses & Crankcase Ventilation Parts
Keeping your Porsche 911's crankcase ventilation system in peak condition is essential for engine performance, longevity, and emissions control. At Design911, we supply a comprehensive range of Porsche 911 breather hoses, crankcase ventilation pipes, oil separator hoses, engine ventilation components, and OEM replacement engine hoses suitable for classic and modern Porsche 911 models.
Whether you're carrying out a full engine rebuild, restoring an air-cooled Porsche, or replacing worn ventilation components during routine maintenance, choosing high-quality breather system parts helps prevent vacuum leaks, oil contamination, and crankcase pressure issues.
Our range includes genuine Porsche breather hoses, replacement oil ventilation pipes, crankcase breather tubes, air-oil separator connections, engine vent hoses, and related Porsche 911 engine management components designed for reliable fitment and long service life.
Related reference numbers
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93020738501
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The crankcase housing breather line is a key component of the engine crankcase ventilation system, designed to route blow-by gases from the crankcase back into the intake system. This process helps regulate internal engine pressure and ensures proper recirculation of gases for improved efficiency and emissions control.
Fits:
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
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- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
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- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Cayman 718 2.0L Manual (300 Bhp)
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Diagram Ref No 4
What This Product Does:
- Channels blow-by gases from the crankcase to the intake system
- Regulates internal engine pressure
- Prevents buildup of harmful gases within the engine
- Supports efficient combustion and emissions control
Symptoms Of Wear Or Failure:
- Oil leaks or residue around the breather line
- Cracked or brittle hose material
- Increased oil consumption
- Rough idle or engine performance issues
- Whistling noises caused by vacuum leaks
- Check engine light related to ventilation system faults
Why Replacement Matters:
- Ensures correct crankcase pressure regulation
- Prevents oil leaks and vacuum leaks
- Maintains proper airflow and combustion efficiency
- Reduces emissions and oil consumption
- Protects engine components from pressure-related damage
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A210753000
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- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
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- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
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The breather line for cylinders 3–4 is an integral component of the engine crankcase ventilation (PCV) system, designed to channel blow-by gases from specific cylinders back into the intake system. This process helps maintain proper pressure within the engine while reducing emissions and ensuring efficient combustion.
Fits:
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
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- Porsche Cayman 718 2.0L Manual (300 Bhp)
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- Porsche Cayman S 718 2.5L Manual (350 Bhp)
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- Porsche Cayman T 718 2.0L Manual (300 Bhp)
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- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Diagram Ref No 2
What This Product Does:
- Channels blow-by gases from cylinders 3–4 into the intake system
- Maintains proper crankcase pressure balance
- Supports efficient combustion and emissions control
- Prevents buildup of harmful gases within the engine
Symptoms Of Wear Or Failure:
- Cracked, brittle, or damaged hose
- Oil leaks or residue around the breather line
- Rough idle or engine running issues
- Whistling noises caused by vacuum leaks
- Increased oil consumption
- Check engine light related to ventilation system faults
Why Replacement Matters:
- Ensures correct crankcase pressure and airflow
- Prevents vacuum leaks and oil leaks
- Maintains optimal combustion and engine performance
- Reduces emissions and oil consumption
- Protects engine components from pressure-related damage
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A210752100
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