Oil System Parts

Breather Line Cylinders 3-4.

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>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• 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

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9A210752100

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Crankcase Housing Breather Line.

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>>
• 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>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• 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 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
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9A210753000

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Engine Oil Filler Cap.

Fits:
Porsche Boxster 981 2012>>2016
Porsche Boxster 982 (718) / GTS 2017>>
Porsche Cayman 982C (718) / GTS 2017>>
Porsche Boxster Spyder 982SP / RS 2019>>
Porsche Cayman 982C (718) GT4.2 / RS 2019>>

Diagram Ref No 9



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98110703508

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Gasket for transmission heat exchanger



Fits:
For cars with PDK transmission
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2013-16
Porsche 982C (718) Cayman 2017>>

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Diagram ref no 2

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9G230724100

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Engine oil heat ex changer for PDK transmission.



Fits:
For cars with PDK transmission
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 918 Boxster Spyder 2014-15
Porsche 981C Cayman 2013-16
Porsche 982C (718) Cayman 2017>>

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Diagram ref no 1

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9G230701900

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Oil cooler gasket.



Fits:
Porsche 982 (718) Boxster 2.0L / S 2.5L / GTS 2.5L 2017>>
Porsche 982C (718C) Cayman 2.0L / S 2.5L / GTS 2.5L 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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9A210747100

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Oil cooler gasket.



Fits:
Porsche 982 (718) Boxster 2.0L / S 2.5L / GTS 2.5L 2017>>
Porsche 982C (718C) Cayman 2.0L / S 2.5L / GTS 2.5L 2017>>

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Diagram ref no 12

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9A210747100

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Oil drain plug O-ring / seal ring (approx. 18 mm × 24 mm), used under the oil drain plug.
This small but critical component creates a secure, leak-proof seal between the oil drain plug and the engine’s oil pan to prevent engine oil seepage. It is sized and manufactured to match the original Porsche specification for a reliable fit and sealing performance.
Sold each

Fits:
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 981 Boxster
Porsche 982 (718) Boxster
Porsche 987C Cayman
Porsche 981C Cayman
Porsche 982 (718) Cayman
Porsche 996
Porsche 997
Porsche 991

Diagram ref no 24

This premium OE Match seal ring (also referred to as a crush washer or gasket) is engineered to the correct inner/outer diameters and material thickness used by Porsche on multiple model platforms.

The seal ring is ideal for use during every oil change where the drain plug has been removed and reinstalled, and whenever the original ring shows signs of compression set, distortion, corrosion, or damage. This OE Match version delivers a direct fit and consistent sealing performance comparable to the factory-specified part.

The oil drain plug seal ring sits between the oil drain plug head and the engine oil pan surface. When the drain plug is torqued to specification, the seal ring compresses slightly to form a fluid-tight barrier, preventing engine oil from escaping the sump under pressure or vibration. A proper seal helps maintain correct oil levels and prevents messy leaks on the road or in the garage.

Function: Installed each time the engine oil drain plug is removed, the seal ring is “crushed” into place during installation, creating an even seal around the drain hole. Its function is critical because even small oil leaks can lead to reduced oil levels, potential engine damage, and contamination of suspension or exhaust components. The OE Match ring reproduces the original’s sealing surface characteristics so that torque and compression behavior remain within factory-designed tolerances.

Oil drain plug seal rings are single-use sealing components that deform each time the plug is installed. Reusing an old or compressed ring can lead to oil drips or leaks, especially under heat cycling and vibration. A proper OE Match seal ring ensures a dependable oil-tight seal, helping to preserve engine lubrication integrity, avoid oil loss, and protect against environmental contamination.

When to replace:
•  Every time the **oil drain plug is removed”
•  If existing seal ring shows cracks, flattening, or corrosion
•  When performing routine oil and filter service
•  After discovering minor oil seepage at the drain plug
•  During engine maintenance or oil pan removal

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90012310630

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Oil drain plug O-ring / seal ring (approx. 18 mm × 24 mm), used under the oil drain plug.
This small but critical component creates a secure, leak-proof seal between the oil drain plug and the engine’s oil pan to prevent engine oil seepage. It is sized and manufactured to match the original Porsche specification for a reliable fit and sealing performance.
Sold each

Fits:
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 981 Boxster
Porsche 982 (718) Boxster
Porsche 987C Cayman
Porsche 981C Cayman
Porsche 982 (718) Cayman
Porsche 996
Porsche 997
Porsche 991

Diagram ref no 24

This premium OE Match seal ring (also referred to as a crush washer or gasket) is engineered to the correct inner/outer diameters and material thickness used by Porsche on multiple model platforms.

The seal ring is ideal for use during every oil change where the drain plug has been removed and reinstalled, and whenever the original ring shows signs of compression set, distortion, corrosion, or damage. This OE Match version delivers a direct fit and consistent sealing performance comparable to the factory-specified part.

The oil drain plug seal ring sits between the oil drain plug head and the engine oil pan surface. When the drain plug is torqued to specification, the seal ring compresses slightly to form a fluid-tight barrier, preventing engine oil from escaping the sump under pressure or vibration. A proper seal helps maintain correct oil levels and prevents messy leaks on the road or in the garage.

Function: Installed each time the engine oil drain plug is removed, the seal ring is “crushed” into place during installation, creating an even seal around the drain hole. Its function is critical because even small oil leaks can lead to reduced oil levels, potential engine damage, and contamination of suspension or exhaust components. The OE Match ring reproduces the original’s sealing surface characteristics so that torque and compression behavior remain within factory-designed tolerances.

Oil drain plug seal rings are single-use sealing components that deform each time the plug is installed. Reusing an old or compressed ring can lead to oil drips or leaks, especially under heat cycling and vibration. A proper OE Match seal ring ensures a dependable oil-tight seal, helping to preserve engine lubrication integrity, avoid oil loss, and protect against environmental contamination.

When to replace:
•  Every time the **oil drain plug is removed”
•  If existing seal ring shows cracks, flattening, or corrosion
•  When performing routine oil and filter service
•  After discovering minor oil seepage at the drain plug
•  During engine maintenance or oil pan removal

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90012310630

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Oil Filter Complete.

Fits:
Porsche 718 (982) Boxster 2.0Ltr and 2.5Ltr - 2017 to 2024
Porsche 718C (982C) Cayman 2.0Ltr and 2.5Ltr 2017>>

Diagram ref no 3

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0PC115403

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Oil Filter Removal Tool for Porsche 718 Boxster / 718 Cayman – Precision Tool for Clean & Hassle-Free Oil Changes

This oil filter removal tool is specifically designed for the Porsche 718 Boxster and 718 Cayman, ensuring a perfect fit around the oil filter housing for quick, controlled and damage-free removal during routine servicing. Engineered to match the precise size and profile of the Porsche filter cap, this tool eliminates the risk of slipping, cracking or rounding the housing—common issues when using universal tools.

Whether performing a simple oil change or full engine service, this dedicated tool guarantees efficient removal, cleaner maintenance, and long-term protection for your Porsche’s lubrication system.

What This Oil Filter Removal Tool Does

This precision tool allows you to:

• Firmly grip and remove the oil filter housing without damage
  
• Reduce the risk of oil spills during filter replacement
  
• Maintain correct torque application when reinstalling
  
• Protect the filter cap from distortion or cracking
• Make routine servicing quicker and more efficient
• Ensure a safe, leak-free seal after installation

It is an essential workshop tool for anyone servicing a 718’s turbocharged flat-four engine.

Why Oil Filter Housings Fail

Oil filter housings can wear or become damaged due to:

• Using incorrect, poorly fitting removal tools
• Over-tightening during previous servicing
• Heat and pressure cycles, making housings difficult to remove
  
• Slipping tools, rounding the edges of the cap
  
• Low-quality tools causing cracks or distortion

A damaged filter housing can lead to leaks, contamination, or total failure of the oil filtration system—making proper tools critical.

Why You Should Use or Replace With a Dedicated Oil Filter Removal Tool

A high-quality tool ensures:

• Accurate engagement with the filter housing
• Effortless removal and installation
• Reduced risk of oil system leaks
• Preservation of the housing for future services
• Cleaner, faster and more professional oil changes
• Long-term reliability for Porsche servicing

This is particularly important for the 718 range, where space is limited and access requires precise tooling.

Oil pan gasket, upper part.



Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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9A210731802

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Oil pan gasket, upper part.

Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718) Cayman 2017>>

Diagram ref no 8

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9A210731802

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Oil pan gasket.



Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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9A210733702

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Oil pan gasket.



Fits:
Porsche 982 (718) Boxster 2017>>
Porsche 982C (718C) Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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9A210733702

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Oil pan gasket.



Fits:
Porsche 997.2 Carrera 2009-12
Porschr 997.2 Turbo 3.8L 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.1 Turbo 2014-18
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2012-16
Porsche 981C Cayman GT4 2016

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Diagram ref no 10

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