GZ25N14 / GZ25N23 Muffler Bolt $0.25 Quantity discounts available QuantityPrice Quantity: -+ SKU: FD277 ABOUT THIS PRODUCT:GZ25N14 / GZ25N23 Muffler BoltAboutAboutMuffler bolt for Zenoah GZ25N14 / GZ25N23 engine. PMW part # 45101. M5 x 50 hex bolt.