This is a A-SK449 Piston Liner Kit PN: SK449Main Description As Following : A-SK449 Piston Liner Kit P.N: SK449 Wide Flange 4.537 Replaces: SK492 CASE , SW742 CASE Found in Section & Models : Engine Parts > 188 CID Diesel, Case-IH CRAWLER: 420, Case-IH INDUSTRIAL/CONSTRUCTION: LCK430, Case-IH INDUSTRIAL/CONSTRUCTION: LCK530, Case-IH INDUSTRIAL/CONSTRUCTION: 310B, Case-IH INDUSTRIAL/CONSTRUCTION: 425, Case-IH INDUSTRIAL/CONSTRUCTION: 430CKL, Case-IH INDUSTRIAL/CONSTRUCTION: 440, Case-IH INDUSTRIAL/CONSTRUCTION: 480CKB, Case-IH INDUSTRIAL/CONSTRUCTION: 480CKC, Case-IH INDUSTRIAL/CONSTRUCTION: 480D, Case-IH INDUSTRIAL/CONSTRUCTION: 480LL, Case-IH INDUSTRIAL/CONSTRUCTION: 500LK, Case-IH INDUSTRIAL/CONSTRUCTION: 530C, Case-IH INDUSTRIAL/CONSTRUCTION: 530CKL, Case-IH INDUSTRIAL/CONSTRUCTION: 580B, Case-IH INDUSTRIAL/CONSTRUCTION: 580C, Case-IH INDUSTRIAL/CONSTRUCTION: 580CK, Case-IH INDUSTRIAL/CONSTRUCTION: 580CKB, Case-IH TRACTOR: 311B, Case-IH TRACTOR: 320B Associated Items : New Also A-CA-O-420CRLR, A-CA-P-420CRLR, A-CA-S-420CRLR, A-CA-O-300B400B, A-CA-P-210B310, A-CA-P-300B400B, A-CA-P-310BKH, A-CA-S-210B310, A-CA-S-300300B, A-MNL17576, A-MNL17569, A-CA-O-580CKB, A-CA-O-580CKBLB, A-CA-P-580BSHT, A-CA-P-580CKB, A-CA-S-580BTLB, A-CA-O-580CTLB, A-CA-P-580CTLB, A-CA-S-580CTLB, A-CA-P-580CKT-O And : Wide Flange 4.537