Specifications
- Brand
- Mahle
- Part #
- PR98MS-12-1
- UPC
- PR98MS-12-1

Mahle MS 3.858 in. 98.00mm 1.2mm 1.2mm 3.0mm File Fit Ring
$79.61
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Mahle MS 3.858 in. 98.00mm 1.2mm 1.2mm 3.0mm file fit ring.
Key Features
- Fits 98.00mm bore size.
- Top ring thickness is 1.2mm.
- Second ring thickness is 1.2mm.
- Oil ring thickness is 3.0mm.
- File-fit design allows for custom end gap setting.
- 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
Mahle is known for making well-built engine components, and their PR98MS-12-1 piston ring set is a solid option for engine rebuilds. This set is designed for a 98.00mm bore size and features specific ring thicknesses: 1.2mm for the top ring, 1.2mm for the second ring, and 3.0mm for the oil ring.
These are file-fit rings, meaning you'll need to carefully measure and file the end gaps to achieve the correct clearance for your specific engine build. This allows for a more precise fit, which is important for proper sealing and oil control. The MS designation indicates a specific ring design Mahle offers for certain applications.
Keep in mind that this part is not CARB approved and cannot be shipped to California. Always refer to your engine's service manual for correct installation procedures and specifications when working with file-fit rings.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- PR98MS-12-1
- UPC
- PR98MS-12-1
Frequently Asked Questions
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Mahle MS 3.858 in. 98.00mm 1.2mm 1.2mm 3.0mm File Fit Ring




