Engines and Components› Pistons and Piston Rings

SEALED POWER

PST RINGS

$53.99

SKU: S03T WR-990330

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Sealed Power R990330 is a set of standard gap piston rings designed for a 4.000 in. bore. These rings feature plasma-moly coated, barrel-shaped, ductile iron top rings for sealing against blowby. The set includes tapered secondary rings and 3-piece oil rings with stainless steel expanders.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSEALED POWER
Part NumberS03T WR-990330

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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