Spec: Unit Type: STATOR COIL, Voltage: 12 Replaces OEM Numbers: ARROWHEAD: AYA4029, J & N: 340-58014, RICKS MOTORCYCLE: 21-913, TUCKER ROCKY: 463741, YAMAHA: 4KB-85510-11-00, 4KB-85510-12-00, 5EH-85510-00-00 Compatible With/Replacement For: YAMAHA: Big Bear 350 2WD YFM350U 1999, Big Bear 350 4WD YFM350FW 1998-1999, Kodiak 400 4WD YFM400FW 1999, Wolverine 350 YFM350FX 2000-2001 1-year warranty protects you after your purchase. We're confident that our products will work flawlessly once installed in your vehicle. But in a rare case that it does not, we'll replace it anytime within one year of your order. If you have a problem, we will take every step to assist you, contact us for a replacement. 100% New aftermarket Stator Coil built to meet OEM specifications for Yamaha