The McCormick 3531984M91 is a genuine OEM connecting rod designed for a wide range of agricultural machinery. This critical engine component ensures reliable power transmission and is compatible with numerous McCormick, Massey Ferguson, Landini, Case IH, Valtra, and Fendt tractor models. Manufactured to original specifications, it provides precise fitment and durability for engine repair and maintenance. Key dimensions include a length of 210 mm, a pin diameter of 38 mm, a small end diameter of 38 mm, and a big end diameter of 63 mm, with a weight of 2.2 kg. Replaces various Massey Ferguson part numbers including 3531984M92 through 3531984M99 and 3531984M90.