This is the SDT 87740-GBM 1/2 HP universal electric reversible motor with 38 RPM gearbox. The Steel Dragon Tools model 3158 motor was replaced by model 3177 and fits the 300 and pipe threading machine. It is a perfect fit for the RIDGID® 535 Pipe Threading Machine Before 1994. The motor fits all years but the gearbox only fits the RIDGID® 535 before 1994.
Steel Dragon Tools® offers a wide variety of professional-grade tools and high-quality replacement parts. Backed by years of manufacturing excellence and coupled with the latest technology, Steel Dragon Tools products provide incredible craftsmanship at an unbeatable value.
We are not an authorized distributor of RIDGID® and/or Ridge products. RIDGID® Marks are trademarks of RIDGID, Inc and are used for product identification purposes only.