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- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Oil Breather Hose
The Porsche 911 Oil Breather Hose is a vital
component of the engine's crankcase ventilation system, helping to regulate
internal engine pressure and safely route oil vapours through the breather
circuit. Manufactured to meet Porsche specifications, this replacement hose
ensures reliable operation while supporting engine efficiency and longevity.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Diagram ref no 26
Over time, breather hoses can deteriorate due to continuous exposure to heat, oil residue, and engine bay contaminants. Cracks, splits, or hardened rubber can lead to vacuum leaks, oil mist escape, poor idle quality, and reduced engine performance. Replacing worn breather hoses with the correct specification part helps maintain optimal engine operation and prevents avoidable maintenance issues.
Whether you are carrying out preventative maintenance, an engine rebuild, or a full Porsche restoration, the 93020738601 oil breather hose provides the correct fitment and dependable performance expected from a quality Porsche replacement component.
Product Features
- Direct replacement for Porsche part number 93020738601
- Supports correct crankcase ventilation system operation
- Helps maintain proper engine pressure regulation
- Resistant to oil vapours, engine heat, and ageing
- Precision fit for straightforward installation
- Suitable for Porsche 911 maintenance and restoration projects
Benefits of Replacing Your Breather Hose
A damaged or ageing oil breather hose can negatively affect engine performance by allowing vacuum leaks and disrupting airflow within the crankcase ventilation system. Installing a new breather hose helps maintain engine efficiency, reduces the risk of oil leaks, and supports long-term reliability.
Porsche 911 Oil Breather Hoses & Crankcase Ventilation Components
Design911 offers a comprehensive range of Porsche 911 oil breather hoses, crankcase ventilation components, engine vent pipes, air-oil separator hoses, vacuum hoses, and genuine Porsche replacement parts for classic and modern Porsche 911 models.
The crankcase ventilation system plays a crucial role in maintaining engine health by managing internal pressure and recirculating oil vapours. Worn or damaged breather components can contribute to oil leaks, rough running, poor emissions performance, and reduced engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93020738601
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 - 1978 to 1986
Porsche 924 - 1976 to 1986
Porsche 924S - 1986 to 1988
Porsche 944 - 1982 to 1991
Porsche 968 - 1992 to 1995
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99951255400
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Breather Hose - 15 x 2.5mm
Sold by the metre
High-quality breather hose with 15 x 2.5mm dimensions, designed for Porsche 924, 924S, and 944 models.
This versatile hose is used across multiple systems,
including fuel tank breather, oil breather, and inlet breather applications,
making it an essential component for maintaining proper ventilation and
pressure balance within the engine and fuel systems.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-85
Diagram ref no 6
Engineered to OEM specifications, this hose offers durability, flexibility, and resistance to heat, oil, and fuel vapours, ensuring reliable performance in demanding engine bay environments. Ideal for maintenance, repair, or restoration of classic Porsche models.
Key Features
• 15 x 2.5mm breather hose specification
• Suitable for Porsche 924, 924S, and 944
• Part number N0203631
• Multi-use: fuel tank, oil, and inlet breather systems
• Resistant to heat, oil, and fuel vapours
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This breather hose serves multiple ventilation roles across the vehicle.
It helps to:
• Vent fuel tank vapours safely
• Regulate pressure in oil breather systems
• Maintain airflow within inlet systems
• Prevent pressure build-up in critical components
• Support efficient engine and fuel system operation
Why Replace Breather Hoses
Breather hoses are exposed to heat, oil, and vapours, leading to wear over time.
Common issues include:
• Cracking or splitting
• Oil or vapour leaks
• Hardening and loss of flexibility
• Reduced ventilation efficiency
Replacing worn hoses ensures proper system balance and prevents performance issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0203631
The product you are viewing cross references to these numbers