Features: 1.Replacing OE numbers for reference: 5TG?81960?00?00, 5TJ?81960?02?00, replacement for Yamaha YFZ 450 2004?2009. 2.Heavy duty metal construction with heat sink fin design, help to dissipate excess voltage and heat. 3.Improve charging capability,prevent overcharging battery, oversized heat sink fins design for maximum heat elimination. 4.It can efficiently improve charging capabilities, direct replacement to your original unit. 5.Plug and play, directly replace the old or broken rectifier, which has stable and reliable performance. Specification: Item Type: Rectifier Regulator Material: Metal+ABS Product OE: 5TG-81960-00-00 Compatible OE: 5TJ-81960-02-00 Fitment: Replacement for Yamaha YFZ 450 2004-2007 Replacement for Yamaha YFZ 450 2009 Replacement for Yamaha YFZ 450 Bill Ballance Edition 2007 Replacement for Yamaha YFZ 450 Limited Edition 2004 Replacement for Yamaha YFZ 450 2005-2008 Replacement for Yamaha YFZ 450 II 2007-2008 Replacement for Yamaha YFZ 450 X 2008 PackageList: 1 x Regulated Rectifier 1 x Stator 8 x Stator Accessories Note: 1. Please double check the part number of your item, matching information is for reference only. 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!