Engines and Components› Pistons and Piston Rings

SEALED POWER

MSTR W/PRM RNGS W/O PSTNS

$877.22

SKU: S03T MK-879C

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

Moderate — 2–4 hours

Description

The Sealed Power MK-879C is an engine piston set featuring hypereutectic pistons with DUROSHIELD® skirt coating, designed for improved cylinder sealing and extended engine life. These pistons help reduce friction for higher fuel economy and prevent damage from inadequate lubrication during start-up. The set includes 6 pistons and is designed for a 4.0L V6 GAS (VIN: X) engine.

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 MK-879C

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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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