Exterior Components Body Panels and Components

United Engine & Machine Co

SNGL HYPER PISTON V6 TOYOTA

$59.60

SKU: U00B S9121H.75MM

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

Advanced — 4+ hours

Description

The Silvolite S9121H.STD piston is a hypereutectic aluminum piston designed for a 87.500mm bore. It features a dish style with four valve reliefs and a stock engine stroke type.

This piston is constructed from hypereutectic aluminum alloy, offering increased strength, scuff resistance, and seizure resistance. It also boasts improved groove wear and resistance to crown area cracking, with reinforced top lands and diamond-finished skirts. This piston is sold individually and includes a wrist pin and retainers, with a press-fit or floating wrist pin style. The piston ring thickness is 1.50mm x 1.50mm x 4.00mm.

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

BrandUnited Engine & Machine Co
Part NumberU00B S9121H.75MM

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.

View Full Return Policy