Elring 240.670 Vacuum Pump Gasket

Vacuum Pump Sealing O-Ring for Porsche

Elring 240.670 is a vacuum pump gasket in O-ring form, built from FPM (fluoride rubber) for sealing performance in emission control and engine vacuum pump applications. With a 19.5 mm inner diameter, 24.5 mm outer diameter, and 2.5 mm thickness, it is sized for precise sealing on supported Porsche 911, Boxster, and Cayman applications.

Key Features

• Elring vacuum pump gasket, part number 240.670
• O-ring shape for a controlled sealing interface
• FPM (fluoride rubber) construction for resistance to heat and fluid exposure
• 19.5 mm inner diameter, 24.5 mm outer diameter, 2.5 mm thickness
• Direct-fit sealing component for Porsche 911, Boxster, and Cayman applications
• Cross-reference: BMW 11 53 2 248 435

Detailed Description

This Elring 240.670 vacuum pump gasket is a precision O-ring used in emission control and sealing system service. The FPM material and compact dimensions help maintain a reliable seal at the vacuum pump interface, where consistent sealing is critical to engine operation. Compatible Porsche coverage includes 2008-2019 Porsche 911, 2009-2016 Porsche Boxster, and 2009-2012 and 2014-2016 Porsche Cayman. For buyers searching for a Porsche 911 vacuum pump gasket, Porsche Boxster vacuum pump O-ring, or Porsche Cayman sealing ring, this part number 240.670 matches the listed applications.

What It Helps Address

• Vacuum pump oil seepage at the sealing surface
• Loss of vacuum caused by a worn or flattened O-ring
• Air leakage at the pump-to-engine interface
• Service replacement for deteriorated FPM sealing material
• Fitment-specific sealing needs on Porsche 911, Boxster, and Cayman models

Installation Notes and Tips

Inspect the sealing groove and mating surfaces before installation. Remove all old gasket material, oil residue, and debris so the new O-ring seats evenly. Confirm the dimensions and application match the vehicle before assembly, especially when servicing Porsche 911, Boxster, or Cayman vacuum pump components. Use clean hands and proper lubrication practices during installation to avoid twisting or pinching the seal.

Quality Assurance

Elring is known for sealing-system components used in automotive service and repair. Part number 240.670 is manufactured to the listed dimensions and material specification for the stated applications.