Engines and Components› Pistons and Piston Rings
SEALED POWER
PISTON RINGS
SKU: S03T WR-940135
Moderate — 2–4 hours
Description
These rings feature plasma-moly coated, barrel-shaped, ductile iron top rings for sealing against blowby. The tapered secondary rings ensure excellent oil control, and the 3-piece oil rings with stainless steel expanders provide proper tension without robbing horsepower. They are sold as 8 sets and are designed for a 4.030 in. bore with 1/16 in. (top and second rings) and 3/16 in. (oil ring) thickness.
Fitment
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Specifications
| Brand | SEALED POWER |
| Part Number | S03T WR-940135 |
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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