Exterior Components› Body Panels and Components
Mahle
Engine Piston Ring Set S41718.020
SKU: M002 S41718020
Beginner — under 30 min
Description
The set includes specific ring types: RFK-18PF for the upper compression ring, BT-18 for the lower compression ring, and GCL-40UAW for the oil control ring. The upper compression ring facing is plasma-moly, while the oil control ring facing is chrome. It has an axial height of 3.0mm for the UCR, 2.0mm for the LCR, and 4.0mm for the OCR. This set is sized at 0.020 inches.
Fitment
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Specifications
| Brand | Mahle |
| Part Number | M002 S41718020 |
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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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