20779140 Mack Switch | 1MR3594M SW 335NC | Index Controls | New Genuine OEM (NOS) FULLER Tooth Count: 37 ring /

Tooth Count: 37 ring / 7 pinion

145 mm outer diameter

and durability in demanding operating environments

115 mm outer diameter

Reference Documentation

20779140 Mack Switch | 1MR3594M SW 335NC | Index Controls | New Genuine OEM (NOS) FULLER Tooth Count: 37 ring /20779140 Mack Switch 1MR3594M SW 335NC New Genuine (NOS) New genuine Mack electrical switch, part number 20779140, manufactured by Index Controls. This normally closed switch is cross referenced as 1MR3594M and SW 335NC, and is designed for heavy duty Mack truck electrical systems and control circuits. New old stock (NOS) unused and in excellent condition. In stock and ready to ship from Discount Parts Exchange (DPX), Mansfield, Ohio. Call for pricing