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Amazon.com: Eparts, Inc. E-PA14 Set Screw PTO Adapter, 1-3/4" & 20 Spline Female, 1-3/8" & 21 Spline Male, 100HP : Patio, Lawn & Garden
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1⅛" Female Hex to 1⅜" 21 Spline 1000 RPM Male Adapter Stub Shaft Adapter– 992-LANXB1340 - Bish Enterprises
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Amazon.com: T353F 4-3/4" PTO Shaft Adapter Female/Male 6 Spline 1-1/8" to 1-3/8" : Patio, Lawn & Garden
![1" Keyed x 1-3/8" 6T Spline F/M PTO Adapter G & G Mfg 113-1600 | G & G Mfg | Brands | www.surpluscenter.com 1" Keyed x 1-3/8" 6T Spline F/M PTO Adapter G & G Mfg 113-1600 | G & G Mfg | Brands | www.surpluscenter.com](https://www.surpluscenter.com/productImages/image.axd/i.1-2241/w.1000/h.1000/1++Keyed+x+1-3+8++6T+Spline+F+M+PTO+Adapter+G+++G+Mfg+113-1600_L.jpg)
1" Keyed x 1-3/8" 6T Spline F/M PTO Adapter G & G Mfg 113-1600 | G & G Mfg | Brands | www.surpluscenter.com
![Spenco S.15073 PTO Adapter - Female spline 1'' - 18 x Male spline 1 3/8'' - 6 with . | Lindstrom Equipment Spenco S.15073 PTO Adapter - Female spline 1'' - 18 x Male spline 1 3/8'' - 6 with . | Lindstrom Equipment](https://www.lindstromequipment.com/remote.axd?http://c85b95b2e86e0d8c90e2-3509ef0b9210fbf84c18b36ced24de7a.r62.cf3.rackcdn.com/imagelibrary_lrg/15073_pic1.jpg?width=670&format=webp)