Spec: Unit Type: Starter, Voltage: 12, Rotation: CW, Teeth: 10, Starter Type: PMDD Replaces OEM Numbers: ARROWHEAD: SMU0346, J & N: 410-54163, LESTER: 16078, YAMAHA: 4WX-H1800-00-00, 4WX-H1800-01-00 Compatible With/Replacement For: YAMAHA: Zuma 50 YW50 2002-2011 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 Starter built to meet OEM specifications for Yamaha **Verify part fits before purchasing**Specs:Unit Type: StarterVoltage: 12Rotation: CWTeeth: 10Starter Type: PMDDReplaces OEM Numbers: ARROWHEAD: SMU0346J & N: 410-54163LESTER: 16078YAMAHA: 4WX-H1800-00-00, 4WX-H1800-01-00Compatible With/Replacement For: YAMAHA: Zuma 50 YW50 2002-2011