Engines and Components› Pistons and Piston Rings
SEALED POWER
RING COMPRESSION
SKU: S03T RF18U436 .50MM
Easy — 1–2 hours
Description
These piston rings are a component of the engine's oiling system, crucial for maintaining proper compression and oil control within the cylinders. The " .50MM" designation indicates the size of the rings, signifying an oversized dimension typically used when cylinder walls have been honed or bored to accommodate wear.
Fitment
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Specifications
| Brand | SEALED POWER |
| Part Number | S03T RF18U436 .50MM |
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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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