Swivel Dampen Washer (fits 16mm bolt) $2.99 Quantity discounts available QuantityPrice Quantity: -+ SKU: HH134 ABOUT THIS PRODUCT:Swivel Dampen Washer (fits 16mm bolt)AboutAboutOne (1) swivel dampen washer for engine mount. Each Goped needs 2 washers which face each other like this: ()PMW part # 8016.