The WA4304013 is a manual transmission main shaft gear manufactured in Italy. This gear interchanges with part numbers 900031, 4034750, WA4304750, 757.MS475, 757.MS4750, and 35530974, making it a suitable replacement across multiple reference numbers for the same application. Pro Gear and Transmission carries this main shaft gear.FeaturesManual transmission main shaft gearManufactured in ItalyCross-reference: 900031Cross-reference: 4034750 or WA4304750Cross-reference: 757.MS475 or 757.MS4750Cross-reference: 35530974Additional InformationAlso referenced as 900031, 4034750, WA4304750, 757.MS475, 757.MS4750, and 35530974.