Mechanical Speed Switch - SA-0503-A SKU SA-0503-A $773.92 In stock Quantity: 1 Add to Bag Product Details The Dyna SA-0503-A is an exact OEM replacement now manufactured by QCC. SWITCH-GOM OVERSPEED SW STD . GOM model with diameter .152 drive shaft Overspeed switch Switch trip setting SW1 = 2290-2310 RPM 10 amps switch contacts Field adjustable Save this product for later Favorite