B2B Order Only！
Partner with us to bring a proven motorcycle parts solution to you. Contact our sales team for bulk pricing, technical specifications, and customization options.
Net Weight: 4.5KG
1.4kW/12 Volt, CW, 9-Tooth Spline
Works with OEM battery, Performance and fit that meets OEM specifications.
Replaces OEM Number: 31390-91, 31390-91A, 31390-91B, 31390-91E, 31390-91F, 31391-91, 31391-91A, 31391-91B, 31514-90
■ OEM & ODM Customization Service
We support proprietary brand building for global distributors. Send us your 2D/3D drawings (STEP, CAD) or samples, and our engineering team will handle the rest.
Custom Logo: Laser marking for your brand logo and part numbers.
■ Advanced Factory Floor Production
Equipped with high-speed multi-axis CNC machining centers, our factory ensures high-volume consistency with tolerance controls down to ±0.02mm. Every batch undergoes rigorous tooth profile contour inspection and hardness testing before packaging.
