Features: This 12V motorcycle starter motor ensures a perfects fit and easy installation without the need for modifications. Featuring advanced motor technology, it delivers powerful starting performances with low noise operation, thanks to its wear resistant and high temperature resistant metal construction. Ideal for motorcycle enthusiasts, professional racers, and repair technicians seeking high performances parts to enhances overall bike performances and reliability. Perfect for offroads adventures, daily commutes, and even cold climates, ensuring your motorcycle starts quickly and reliably in any condition. With its lightweight design and superior corrosion resistance, this starter motor offer efficient energy conversion, reducing battery drain and maintenance needs while improving ride comfort. Specifications: Component:Metal Voltage: 12V Installation type: direct replacement Number of teeth: 9 For WR450 WR450F YZ450 YZ450FX 2016-2018 Part Number:2GC-81890-00-00 2GC-81890-01-00 Package Includes: 1pcs Motorcycle Starter Motor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.