PISTON KIT 76-81 KTM 390 82.5mm 0.5mm OVER VINTCO PST04-0.5

The VintCo PST04-0.5 piston kit is a high-quality replacement assembly for 1976-1981 KTM 390 vintage 2-stroke motorcycles. Made in Germany with modern materials and manufacturing techniques, it is designed to provide OEM-level or better fitment and performance. This 82.5 mm piston kit is supplied with the piston, rings, pin and clips for top-end service, with a wrist pin bearing available separately and additional size options also available.

Features

• Complete replacement piston kit for vintage KTM 390 2-stroke models
• Includes piston, rings, pin and clips
• Forged piston
• MoS2-coated to assist running-in
• Designed for OEM-level or better fitment and performance
• Wrist pin bearing sold separately
• Additional size options available

Specifications

• VintCo Part Number: PST04-0.5
• Nominal piston size: 82.50 mm
• Oversize: +0.50 mm
• Piston measurement: 82.40 mm
• Clearance: 0.10 mm

Vehicle Fitments

• 1976 KTM 390
• 1977 KTM 390
• 1978 KTM 390
• 1979 KTM 390
• 1980 KTM 390
• 1981 KTM 390