+3 Mini-Generator - SA-3937 - Woodward Synchro-Start SA-3937 $285.00 In stock Quantity: 1 Add to Bag Product Details Brand: Mini-Gen Cross Over Part No.: SENSOR-MGO-1 MINI-GEN #37 The Dyna SA-3937 is an exact OEM replacement (formerly Woodward Synchro-Start) now manufactured by QCC. 4000 RPM maximum Rugged Zinc die casting Output signal frequency is 1/2 of shaft RPM 210 ohms resistance Can be exposed to salt, fuel oil, lubricants and moisture Save this product for later Favorite