Replacement Part Number: M5090C. The M5090C rheostat has a resistance of 64 Ohm and a power rating of 150W, ensuring precise control of your welder. Compatible with for & Gas Welder SA-200, SA-250, SA-300 (Except Code 7090), Classic I, Classic II, Classic III, Classic IIID, Classic 300D, SAE 200, SAE 300, SAE 350, SAE 400 (Except Code 7232), SAE 400 Weld'N Generators, 300, Pipeliner 200D, Pipeliner 200G. M5090C Rheostat can precisely control the power output, accurately regulate the current, restore the functionality of the welder or generator and extend its service life. We provide you with a one-year return and exchange service. If there is any problem with the product, please to ask our after-sales team, our professional customer service reply you within 12 hours. Color: As Shown Material: ceramics Package Contents: 1 pcs * rheostat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.