Rotax Bombardier Piston 420-9852-50 Skidoo Vintage Snowmobile ski doo Engine Bombardier Motor TNT valcourt Quebec

New NOS OEM Bombardier piston, 77.89 mm red‑dot L+ flat‑top ring, perfect for freshening a tired Ski‑Doo Rotax top end when you need a clean standard replacement without the original box.    ST‑1     SKU‑1.   Pic‑A‑Slot Bombardier piston.     NO BOX