PISTON KIT 76-81 KTM 390 83.0mm 1.0mm OVER VINTCO PST04-1.0

VintCo Piston Kit for Vintage KTM 390 Engines - 83.0mm Oversize

This VintCo Piston Kit is specifically designed for vintage 2-stroke KTM 390 models, offering a complete solution for engine rebuilding and replacement. Manufactured using modern materials and advanced production techniques, this kit ensures OEM-style fitment and reliable performance for your classic motorcycle.

Each VintCo piston kit includes all the essential components for a proper installation: the piston itself, piston rings, a wrist pin, and retaining clips. This particular kit features an 83.0 mm piston with a 1.0 mm oversize, designed to restore or enhance the performance of your engine. While the nominal size is 83.0 mm, the source description also references 83 mm (+0.5 mm over), indicating precise sizing for optimal engine function.

Key Features:

• Complete piston kit for vintage 2-stroke KTM 390 models.
• Includes high-quality piston, durable rings, strong wrist pin, and secure clips.
• Engineered for direct fitment, mirroring original specifications.
• Ideal for engine rebuilds, maintenance, and performance upgrades.
• Note: A wrist pin bearing is available separately.

Specifications:

• Brand: VintCo
• Part Number: PST04-1.0
• Piston Size: 83.0 mm
• Oversize: 1.0 mm
• Clearance Size: 82.90 mm
• Clearance: 0.10 mm
• Piston Construction: Forged for strength and durability.
• Coating: MOS2 for reduced friction.
• Manufacturing Origin: Made in Germany.