This is a A-D50047 Spring, Beleville, Power Shuttle Forward Clutch PN: D50047Main Description As Following : A-D50047 Spring, Beleville, Power Shuttle Forward Clutch P.N: D50047 Outside Diameter: 5.29"Teeth: 8 Found in Section & Models : Transmission & Rear Axle > Brake Disc and Plates, Case-IH BACKHOE: 480E, Case-IH BACKHOE: 480F, Case-IH BACKHOE: 580K, Case-IH BACKHOE: 580SE, Case-IH INDUSTRIAL/CONSTRUCTION: 480C, Case-IH INDUSTRIAL/CONSTRUCTION: 480D, Case-IH INDUSTRIAL/CONSTRUCTION: 480ELL, Case-IH INDUSTRIAL/CONSTRUCTION: 480FLL, Case-IH INDUSTRIAL/CONSTRUCTION: 480LL, Case-IH INDUSTRIAL/CONSTRUCTION: 580D, Case-IH INDUSTRIAL/CONSTRUCTION: 580SD Associated Items : New Also A-CA-S-480ETLB, A-CA-S-580K, A-CA-O-480C, A-CA-S-480CTLB, A-CA-P-580DSPR And : Outside Diameter: 5.29" Teeth: 8