The WÖSSNER Pro Series forged piston (manufacturer reference 8637DA) is designed for motorcyclists and riders looking for an engine part ready for the overhaul of a 525 cm³ single-cylinder engine. Manufactured in Germany by Wössner, this forged aluminum piston meets the manufacturing standards of specialists in engine parts for 2 and 4-stroke engines.

• Type: forged piston
• Material: aluminum
• Compression: high compression
• Bore diameter: 95.00 mm
• Piston diameter: Ø 94.95 mm (letter A oversize)
• Finish: anti-friction treatment of the skirt
• Supplied with: ring(s), circlips, and pin

Designed for rebuild or replacement operations, this piston is suitable for quad, motocross, and roadster applications equipped with a bore close to 95 mm. Common installations include: POLARIS OUTLAW 525 IRS (2013), KTM 525 XC ATV (2012), and BETA RR 525 4T ENDURO RACING (2009). Always check the reference and the dimension (letter A) before installation to ensure compatibility with your displacement and tolerances.