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

File-fit rings have an end gap that you can adjust by filing them down. This allows you to set the precise gap needed for your engine's bore size and operating conditions, which is important for proper sealing.

What are the dimensions of these Mahle piston rings?

These rings are designed for a 4.060 inch bore with a .005 inch overbore. The top and second rings are 1/16 inch wide, and the oil ring is 3/16 inch wide.

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 4065MS - File Fit

Name: Mahle MS 4.060in+ .005in 1/16in 1/16in 3/16in File Fit Rings
Brand: Mahle
SKU: mahle-mahle-ms-4-060in-005in-1-16in-1-16in-3-16in-file-fit-rings-t14-29608
Price: 118.05 USD
Availability: BackOrder

Mahle MS 4.060in+ .005in 1/16in 1/16in 3/16in File Fit Rings

$118.05

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. 4.060in bore size, .005in overbore. Standard tension.

Key Features

Fits a 4.060 inch bore with a .005 inch overbore.
Top and second rings measure 1/16 inch wide.
Oil ring measures 3/16 inch wide.
Standard tension rings are suitable for many engine builds.
File-fit design allows for precise end gap adjustment.
Not CARB approved; cannot ship to California.

⚠️ 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

These Mahle MS piston rings are designed for a 4.060 inch bore with a .005 inch overbore. The ring groove dimensions are 1/16 inch for the top and second rings, and 3/16 inch for the oil ring, all with standard tension. Being file-fit means you can precisely adjust the end gap for your specific application, which is crucial for proper sealing and performance in a freshly bored or honed cylinder. This level of adjustability is often preferred when rebuilding an engine to ensure optimal compression and oil control.

Mahle is a well-known name in engine components, and this ring set reflects their focus on providing parts that meet the needs of engine builders. The standard tension design is suitable for a wide range of applications where extreme boost pressures or specialized sealing aren't the primary concern. Proper installation, including careful filing of the end gaps to the manufacturer's recommended specifications for your engine build, is key to getting the most out of these rings.