Specification Brand : # BulletPoint1 : The ROP Shop replacement Electric PTO Clutch Assembly BulletPoint2 : Specs - Inner Diameter: 1". Pulley Diameter: 5 5/16". Rotation Direction: Counter Clockwise. Belt Width: 1/2" or 5/8". Refer to images 2 & 3 for more information BulletPoint3 : Includes - (1) Electric PTO Clutch, (1) High Temperature Bearing, (1) Billet Machined Pulley, (1) Stainless Steel Rivet & (1) Wire Harness; comes as shown in the first image BulletPoint4 : Clutch contains a preinstalled keyway; however, modification of your existing keyway may also be required for successful installation BulletPoint5 : Please be sure to check your part or model number to ensure this is the correct electric clutch for your unit. Also, please note this may replace multiple part numbers Color : Black ExternallyAssignedProductIdentifier1 : 0645688650385 ExternallyAssignedProductIdentifier2 : 645688650385 ExternallyAssignedProductIdentifier3 : 00193979281607 ItemName : Echo / Shindaiwa A556000543 Genuine Clutch Drum for CS-310 CS-352 CS-353ES ItemPackageDimensions_Height : 15.9004 centimeters ItemPackageDimensions_Length : 2.6924 centimeters ItemPackageDimensions_Width : 7.1882 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : lawn-mower-electric-clutches Manufacturer : The ROP Shop Material : Stainless Steel ModelName : PTO Clutch ModelNumber : JLC-G2010_Z6 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : JLC-G2010_Z6 PowerSourceType : gasoline-powered ProductDescription : Genuine Echo OEM Chainsaw Clutch Drum Part # A556000543 Part # A556000542 Fits CS-310 S/N: C32914001001 - C32914999999-->Clutch CS-310 S/N: C33014001001 - C33014999999-->Clutch CS-310 S/N: C33113001001 - C33113999999-->Clutch CS-352 S/N: C33314001001 - C33314999999-->Clutch CS-353ES S/N: C31926001001-C31926999999-->Chain Brake ProductExpirationType : Does Not Expire SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 25170000