This is a A-396214R1 Shaft, PTO PN: 396214R1Main Description As Following : A-396214R1 Shaft, PTO P.N: 396214R1 Long: 11.560"Teeth: 22 / 16 Replaces: 396214R1-R IH Found in Section & Models : PTO Parts > PTO and Related Parts, Case-IH INDUSTRIAL/CONSTRUCTION: 2504 (SN 14952 >), Case-IH INDUSTRIAL/CONSTRUCTION: 2544 (W/540 RPM PTO), Case-IH INDUSTRIAL/CONSTRUCTION: 3616 (SN 999>), Case-IH INDUSTRIAL/CONSTRUCTION: 8000, Case-IH TRACTOR: 3616 (SN 999>), Case-IH TRACTOR: 425, Case-IH TRACTOR: 504 (FARMALL SN 14952>, INTERNATIONAL SN 17590>), Case-IH TRACTOR: 544 (W/540 RPM PTO), Case-IH TRACTOR: 664 (W/540 RPM PTO), Case-IH TRACTOR: 666, Case-IH TRACTOR: 686 Associated Items : New Also A-IH-O-2504-I, A-IH-O-3121, A-IH-P-3082, A-IH-P-5042504, A-SMIH201, A-IH-O-3121, A-IH-P-ENG-4DSL, A-IH-P-ENG14CYL, A-IH-S-544UTIL, A-IH-O-3121, A-IH-O-3616, A-IH-P-3082, A-IH-P-3616LDR, A-IH-S-CLUTCH, A-IH-S-ENG460ETC, A-IH-P-ENG14CYL, A-IH-S-ENG157, A-IH-S-4000FL, A-MNL18328, A-IH-S-ENG6CYLG And : Long: 11.560" Teeth: 22 / 16