Ski-Doo 440 Free Air Piston 420-9941-22 – Red Dot, Green Dot, L Top Ring, 67.4mm/67.41mm
This NOS set of Ski-Doo 440 Free Air pistons (part number 420-9941-22) features both red dot and green dot options, L top ring, and measures 67.4mm and 67.41mm. Perfect for 1970s free air engines, these pistons are ideal for vintage snowmobile restorations or repairs. In stock now with rings and more available—ST-2, SKU-440, IMG-8624. Shop VSPWarehouse.com for rare Ski-Doo pistons and vintage snowmobile parts.