Oil Filters

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

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Related, superseded, cross reference or alternative numbers for comparison.

90012310630

The product you are viewing cross references to these numbers

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

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Related, superseded, cross reference or alternative numbers for comparison.

90012310630

The product you are viewing cross references to these numbers

Oil Filter Complete.

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

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115403

The product you are viewing cross references to these numbers

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

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115403

The product you are viewing cross references to these numbers

Oil filter insert.

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

Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115466

The product you are viewing cross references to these numbers

Oil filter insert.

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

Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115466

The product you are viewing cross references to these numbers

Oil filter insert.

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

Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115466

The product you are viewing cross references to these numbers

Oil filter insert.

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

Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

0PC115466

The product you are viewing cross references to these numbers

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 Filter Seal Ring.

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

Diagram ref no 5

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

99970768540

The product you are viewing cross references to these numbers

Oil filter seal ring.

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

Diagram ref no 5

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

99970768540

The product you are viewing cross references to these numbers

Spin-On Oil Filter and Adapter Kit

Upgrade your Porsche 718 engine oil filtration system with the Ninemeister 9m Spin-On Oil Filter Adapter Kit.

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 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)

Designed to replace the factory paper cartridge filter arrangement, this kit converts the original plastic filter housing to a conventional metal screw-on oil filter.

Kit Contents

• Clear-anodised 6082-T6 aluminium adapter plate
• Threaded spin-on filter mounting
• Metal canister oil filter with integrated pressure relief valve

The conversion is intended to improve filtration reliability, reduce the risk of filter material deterioration and make routine oil changes easier and cleaner.

What Does It Do?

The adapter replaces the original plastic oil filter housing, allowing a conventional metal canister filter to be fitted directly to the engine.

Engine oil passes through the replacement filter, which captures contaminants before the oil continues through the lubrication system.

The supplied filter incorporates a pressure relief valve to maintain oil flow under specified operating conditions.

Why Upgrade?

Ninemeister developed this conversion to address concerns about deterioration of the original paper filter element.

According to Ninemeister, damaged filter material can release fibres or fragments into the lubrication system, potentially causing engine problems.

Advantages of the upgrade include:

• Replaces the factory cartridge filter arrangement
• Reduces reliance on the original paper element design
• Provides an alternative metal canister filtration system
• Simplifies routine oil filter replacement
• Helps reduce mess during oil changes
• Uses a reusable aluminium adapter plate

Filtration improvements and reduced failure risk are manufacturer claims.

Installation Notes

Remove the original black plastic oil filter housing and paper filter element.

Install the Ninemeister aluminium adapter plate in its place, then screw the supplied metal oil filter onto the central threaded fitting.

Ensure the sealing surfaces are clean and follow the correct installation and tightening procedures. Check the engine oil level and inspect for leaks after installation.

Use a compatible replacement canister filter during future servicing.

Key Features

• Ninemeister 9m performance oil filter conversion
• Reference 9MPC115403
• For Porsche 718 Boxster and Cayman 2.0L / 2.5L engines
• Converts cartridge filtration to a spin-on canister
• Clear-anodised aerospace-grade aluminium adapter
• Includes metal oil filter with pressure relief valve
• Designed to address potential paper filter deterioration
• Easier, cleaner oil filter servicing
• Reusable adapter for future filter changes
• Suitable for road and performance applications

Oil Filter Conversion Kits

The Porsche 718 Boxster and Cayman 2.0L and 2.5L turbocharged engines use a cartridge-style engine oil filter within a plastic housing.

The Ninemeister 9m spin-on oil filter adapter kit replaces this arrangement with a reusable aluminium adapter and conventional metal canister filter. Designed to address potential paper filter deterioration, the conversion also offers more convenient oil filter replacement during routine servicing.

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

9MPC115403

The product you are viewing cross references to these numbers