What does 'file-fit' mean for these piston rings?

File-fit rings have ends that can be filed down to achieve a precise gap. This allows you to tailor the ring gap to your specific engine's bore size and intended use, which is important for optimal sealing and performance.

What are the specific dimensions of these rings?

The top and second rings measure 1/16 inch in width, and the oil control ring measures 3/16 inch in width. The set is also +.005 inch oversized for the bore.

Can these rings be shipped to California?

No, these rings are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle Piston Ring Set 4505ML - File Fit

Name: Mahle MS 4.500in+ .005in 1/16in 1/16in 3/16in File Fit Rings
Brand: Mahle
SKU: mahle-mahle-ms-4-500in-005in-1-16in-1-16in-3-16in-file-fit-rings-t14-29661
Price: 129.16 USD
Availability: BackOrder

Mahle MS 4.500in+ .005in 1/16in 1/16in 3/16in File Fit Rings

$129.16

On Backorder

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

Mahle MS file fit piston ring set for 4.500 inch bore. Low tension rings with +.005 inch sizing.

Key Features

Fits a 4.500 inch bore size.
Top and second rings are file-fit for custom gapping.
Low tension ring design for better cylinder wall conformity.
Ring dimensions are 1/16" (top), 1/16" (second), and 3/16" (oil).
Rings are +.005 inch oversized for file-fitting.
Mahle is a popular 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 a project vehicle or a classic, getting the right piston rings is crucial for proper sealing and performance. This set from Mahle is designed for a 4.500 inch bore and features file-fit top and second rings, meaning you can precisely gap them to your specific engine's needs. This is especially helpful when working with custom piston-to-wall clearances or when you need to ensure optimal ring seal in a performance application.

Mahle is a well-known name in engine components, and these rings are built to perform. They are low tension, which helps them conform better to the cylinder wall for improved oil control and reduced blow-by. The set includes rings with dimensions of 1/16 inch for the top and second rings, and 3/16 inch for the oil ring. They are also sized at +.005 inch over the bore, giving you a bit of extra room to work with during the gapping process.

Remember, these rings are file-fit, so you'll need to carefully measure and file the ends to achieve the correct gap before installation. It's always a good idea to consult your engine's service manual or a trusted builder's guide for recommended ring gap specifications based on your application.