Specifications
- Brand
- Mahle
- Part #
- 4285MS
- UPC
- 4285MS

Mahle MS 4.280in+ .005in 1/16in 1/16in 3/16in File Fit Rings
$118.05
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Mahle MS File Fit Piston Ring Set. Universal fit for engine rebuilds.
Key Features
- Fits universal applications for engine rebuilding.
- Mahle MS File Fit Piston Ring Set.
- Ring groove dimensions are 1/16", 1/16", and 3/16".
- Standard tension rings.
- Sized at +.005 inch for custom fitment.
- 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 File Fit Piston Ring Set, part number 4285MS. These rings are designed for engine rebuilding applications where precise fitment is crucial. The file-fit design allows you to customize the end gap for your specific cylinder bore, ensuring optimal sealing and performance.
The set includes rings with dimensions of 1/16 inch for the top two ring grooves and 3/16 inch for the oil control ring groove. They are standard tension and come at a +.005 inch size, meaning they are slightly larger than standard to accommodate worn bores or specific build requirements. Mahle is a well-known name in engine components, and this set is a solid option for mechanics looking for reliable piston rings for a rebuild.
Please note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's service manual for specific installation instructions and recommended ring gap specifications.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4285MS
- UPC
- 4285MS
Frequently Asked Questions
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Mahle MS 4.280in+ .005in 1/16in 1/16in 3/16in File Fit Rings




