YZ4156058 John Deere Splined Coupling. Number of Splines – Internal. Number of Splines – External. Shelf 13, Bin 2. The item “John Deere YZ4156058 Splined Coupling” is in sale since Friday, May 18, 2018. This item is in the category “Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Other Heavy Equipment Parts & Accessories”. The seller is “witmermotorservice” and is located in Stevens, Pennsylvania. This item can be shipped to United States.