Engines and Components› Pistons and Piston Rings

SEALED POWER

ECONOMY PISTON RING SET

$39.90

SKU: S03T FP9677X20

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Description

The Sealed Power 677AP 20 is a set of 6 cast aluminum pistons designed for Jeep 4.0L/242ci L6 engines. These pistons feature a dish style with a D-shaped cup and have a bore size of 3.895 inches and a compression height of 1.585 inches.

The wrist pin is included, but retainers and piston rings are sold separately. This set includes pistons with a .020 inch oversize application.

Fitment

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Specifications

BrandSEALED POWER
Part NumberS03T FP9677X20

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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