Specifications
- Brand
- Mahle
- Part #
- 4055MS-112
- UPC
- 4055MS-112

Mahle MS 4.050in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings
$183.28
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Mahle MS 4.050in +.005in file fit piston ring set. Part# 4055MS-112. Universal fitment.
Key Features
- Fits universal applications.
- Piston ring set sized at 4.050 inches with a +.005 inch oversize.
- Top ring is 1.0mm, second ring is 1.0mm, and oil ring is 2.0mm.
- Features a file-fit design for custom gapping to match cylinder bore.
- Standard tension rings suitable for various engine builds.
- 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
Product Details
This is a Mahle MS piston ring set, sized at 4.050 inches with a +.005 inch file fit. These rings are designed for engine rebuilding where precise cylinder sealing is critical. The set includes three rings with specific dimensions: 1.0mm for the top ring, 1.0mm for the second ring, and 2.0mm for the oil control ring. The file-fit design means you'll need to gap the end of the top ring to match your specific cylinder bore, which is a common practice for performance or custom engine builds 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 for engine overhauls. The standard tension is suitable for a wide range of applications, and the file-fit nature allows for fine-tuning to achieve a perfect seal in your engine's cylinders. This is a solid option if you're rebuilding an engine and need reliable piston rings that allow for custom gapping.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4055MS-112
- UPC
- 4055MS-112
Frequently Asked Questions
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Mahle MS 4.050in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings




