GZ25N14 (Geo) Piston Pin (no loonger available) $0.60 Quantity discounts available QuantityPrice Quantity: -+ SKU: CA618 ABOUT THIS PRODUCT:GZ25N14 (Geo) Piston Pin (no loonger available)AboutAboutPiston pin for Zenoah GZ25N14 (Geo) engine. 8mm diameter, 28mm lengthZenoah part# 1600-41310PMW part # 4542.