What does 'File-Fit' mean for these piston rings?

The 'File-Fit' designation means that the oil control rings in this set are designed to have their end gaps filed to the precise measurement required for your specific engine build. This allows for a custom fit during installation.

Are these rings compatible with all Porsche engines?

This specific ring set is designed for Porsche engines that utilize Nikasil cylinders and have a 102.00mm bore. It is important to verify your engine's specifications before purchasing.

What is the significance of the 1.2 - 1.2 - 3.0mm sizing?

This refers to the dimensions of the piston rings: 1.2mm for the top compression ring, 1.2mm for the second compression ring, and 3.0mm for the oil control ring. These precise dimensions are critical for proper sealing and oil control within the cylinder.

Mahle Piston Ring Set 1.2-1.2-3.0mm PR102MS-12

Name: Mahle File-Fit Ring Set 102.00mm bore 1.2 - 1.2 - 3.0mm For Porsche w/ Nikasil Cylinders
Brand: Mahle
SKU: mahle-mahle-file-fit-ring-set-102-00mm-bore-1-2-1-2-3-0mm-for-porsche-w-nikasil--t14-509106
Price: 382.12 USD
Availability: BackOrder

Mahle File-Fit Ring Set 102.00mm bore 1.2 - 1.2 - 3.0mm For Porsche w/ Nikasil Cylinders

$382.12

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle File-Fit Ring Set for Porsche w/ Nikasil cylinders. 102.00mm bore, 1.2-1.2-3.0mm ring sizes.

Key Features

Fits Porsche vehicles with Nikasil cylinders.
102.00mm bore size.
Ring dimensions are 1.2mm (top ring), 1.2mm (second ring), and 3.0mm (oil ring).
File-Fit oil rings allow for custom end gap filing during installation.
Mahle is a well-known brand for engine components.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

If you're rebuilding the engine in your Porsche and dealing with Nikasil cylinders, getting the right piston rings is crucial for a solid seal and proper compression. This Mahle File-Fit ring set is designed to meet those specific needs, ensuring your engine runs smoothly after the rebuild.

Mahle is a well-known name in engine components, and this set is built to perform. The rings feature a 102.00mm bore size, with a specific 1.2mm top ring, 1.2mm second ring, and a 3.0mm oil ring. This precise sizing is important for achieving the correct tension and sealing against the Nikasil cylinder walls, which require careful attention during installation. The 'File-Fit' designation means the end gaps on the oil rings are designed to be filed to your exact specification, allowing for a custom fit during the rebuild process.

When working on a performance engine like those found in Porsches, using well-made components like these Mahle rings can make a notable difference in the final outcome of your engine build. Remember to consult your vehicle's service manual for the correct installation procedures and specifications, especially when dealing with Nikasil cylinders and filing the oil rings.