The 19839 is a 12v 2.5 kw starter, a new aftermarket direct replacement engineered to match the fit, form, and function of the original starter. Specifications: - Voltage: 12V - Power: 2.5 kW - Pinion teeth: 15 Vehicle Compatibility: - Makes: Yanmar (1980-1990) - Models include: Yanmar YM5000; Yanmar YM7000; Yanmar YM6000 - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 121254-77013, 18024, 18051N, 18051N-OEM, 18178N, 18204N, 18204N-OEM, 19709N, 19709N-OEM, 19839 (plus 6 more on file). Why ePartsGlobal: specialist in heavy-duty starters, alternators, and charging-system electrical parts. Backed by a 1-year warranty, free shipping on orders over $19.95, and fast fulfillment. Ships from USA.