Home>> 1687643M1 - Mainshaft Mainshaft - Fits Massey Ferguson® - 1687643M1 Sugg. Retail Price: $113.45/EA Out of Stock Quantity: EA Product Details # 1687643M1 New (Aftermarket Part) Mainshaft 8 Speed Transmission 18 Spline13.500 Inches Long Weight: 9.00 lbs Replaces Tractor Part #: 1870149M1 WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Where Used FITS MASSEY FERGUSON® 135, 150, 165, 175, 180, 1080, 1085, 20, 20C, 20F, 231, 235, 240, 245, 250, 253, 255, 265, 275, 285, 290, 30, 30B, 30D, 31, 360, 362, 40, 40B, 40E, 50C, 50D, 550, 565, 575, 590 Specifications Instructions Any use of OEM part numbers is for reference only. Need help finding a tractor part? Give us a call at 1-800-462-7335.