4.75" Aluminum Engine Pistons
Updated October 31, 2026
| Lot number | 35 |
| Auction | Jim E. Soares Estate Aviation Auction |
| Date | November 21, 2026 at 10:00 AM MST |
| Auction house | Method Estate Management |
| Location | Belgrade, Montana |
A set of four matching vintage new-old-stock aluminum engine pistons featuring a 4¾-inch crown diameter, three compression ring grooves, and internal casting part numbers 69958 and P10. Keywords Piston, Aluminum, Cylinder, Bore, Component, Restoration, Tractor, Truck
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