Engines and Components› Pistons and Piston Rings
Mahle
Piston Ring
SKU: M002 3645MS-112-1
Advanced — 4+ hours
Description
Part #: 3645MS-112-1
1.0mm, 1.0mm, 2.0mm Standard Tension +.005 File Fit Rings 3.640"+0.005 1.0, 1.0, 2.0mm File Fit SINGLE RING SET (1CYL).
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Mahle's design utilizes ultra-flat ring flanks to maximize sealing between the ring and piston. The top rings are made from positive twist ductile iron with a barrel-faced plasma-moly inlay, while the second rings are crafted from reverse-twist tapered-faced cast iron. The oil rings are a three-piece style, available in both standard and low tension options.
Fitment
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Specifications
| Brand | Mahle |
| Part Number | M002 3645MS-112-1 |
Videos
Oil Ring FAQs
How to Properly Install Rings on a Piston
Installing Rings on the Piston
How to File Fit Rings for Your Engine: Guide to Proper Gap
Piston Circlip Installation - Techniques, Tools, and Tips
Piston Ring Order
Piston Installation
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Performance Diesel Cast Pistons vs OE Pistons
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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