Engines and Components› Pistons and Piston Rings

SEALED POWER

PREMIUM PISTON RING SET

$150.36

SKU: S03T E-408K 40

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

Beginner — under 30 min

Description

The Sealed Power E-408K 40 is an engine piston ring set designed for specific vehicle applications. This premium grade set features a chrome steel top ring with a barrel face and a ductile iron second ring with a reverse torsional design and phosphate coating.

The rings are engineered for a 3.9650-inch bore diameter and are oversized by 0.040 inches. The oil ring is a 3-piece flex vent design, and the set includes the specified groove widths for proper fitment.

Fitment

Fitment Guaranteed

Don’t gamble
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 E-408K 40

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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