Exterior Components› Body Panels and Components
United Engine & Machine Co
SINGLE CAST PISTON 4.2L FORD
SKU: U00B S3186.040
Advanced — 4+ hours
Description
MIA's Description
With a compression height of 1.857 inches, it contributes to a compression ratio of 8.3. The piston is manufactured from a Cast 332 Alloy and includes a floating pin with an offset configuration. The oil ring thickness is 0.1875 inches.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B S3186.040 |
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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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