946425 Replacement 45" Flathead piston kit. std.

Keeping a classic Flathead on the road requires quality components, and this standard-size piston kit is designed for stock rebuilds of 1929 to 1973 45-inch 750cc Side Valve models. Sold as a set, these cast aluminum OEM-style pistons come complete with wrist pins, retainers, and piston rings, providing everything needed for a top-end overhaul. They are a direct replacement for original equipment, identified by part number 946425. As with any vintage engine work, a knowledgeable mechanic should verify all clearances and follow proper break-in procedures to ensure these pistons seat correctly and provide years of reliable service in your 45 solo or Servi-Car.