Engines and Components› Pistons and Piston Rings
United Engine & Machine Co
CAST PISTON 3.9L GM
SKU: U00B 1413.040
Advanced — 4+ hours
Description
This piston set is compatible with various engines, including those from GM, specifically the 235ci/3.9L L6 engines produced between 1941 and 1962. Piston rings are not included with this set.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B 1413.040 |
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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