The Precision Gear Angle Set replaces part numbers 174204 and 163996, designed for models in the 620 and 625 series. This set includes two new lower horizontal rotating hook drive shaft bevel gears, crafted from durable plastic resin with a metal base for enhanced strength. These gears fit on the right side of the lower horizontal shaft and the bottom of the right vertical shaft that drives the hook mechanism. The angled gear set ensures smoother operation, better meshing, and quieter performance. Compatible with a wide range of models including 600 series, 620, 625, 626, 628, 629, 630, 630E, 635, 636, 638, 639, 640E, 645, 646, 648, 648E, and 649, this high-quality replacement gear set is a reliable upgrade for maintaining optimal sewing machine function. It is a non-OEM, new part designed to provide long-lasting performance and improved efficiency.
