Exterior Components› Body Panels and Components
United Engine & Machine Co
SNGL HYP/CTD PISTON 1.9L GM
SKU: U00B S1903HC.75MM
Advanced — 4+ hours
Description
These pistons are constructed from an aluminum alloy high in silicon, offering increased strength, scuff resistance, and seizure resistance. They feature improved groove wear, resistance to crown cracking in high-temperature areas, reinforced top lands, and diamond-finished skirts. The piston style is dish with no valve reliefs and a bore size of 82.75mm. Piston ring grooves accommodate 1.2mm, 1.5mm, and 2.5mm rings.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B S1903HC.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.
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