Specifications
- Brand
- Mahle
- Part #
- 4050MS-112
- UPC
- 4050MS-112

Mahle MS 4.045in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings
$183.28
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Mahle MS 4.045in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings. Universal ring set for engine builds.
Key Features
- This is a Mahle MS piston ring set.
- Designed for a 4.045 inch bore size.
- Features a +.005 inch file fit for custom gap adjustment.
- Includes a 1.0mm top ring, a 1.0mm second ring, and a 2.0mm oil ring.
- 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, designed for a 4.045 inch bore with a +.005 inch file fit. The ring set includes a 1.0mm top ring, a 1.0mm second ring, and a 2.0mm oil ring. These rings are intended for engine rebuilding projects where precise fitment is crucial.
Mahle is a well-known name in engine components, and this set is built to meet the demands of engine work. The file-fit design means you can adjust the end gap yourself, which is important for achieving proper compression and oil control, especially in modified or performance applications. This allows for a more tailored fit to your specific cylinder bore and engine build.
Remember that this ring set is not CARB approved and cannot be shipped to California. Always refer to your engine build specifications and manufacturer instructions for proper installation and gap setting.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4050MS-112
- UPC
- 4050MS-112
Frequently Asked Questions
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Mahle MS 4.045in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings




