VALVE STEM SEAL, EXHAUST VALVE, PERKINS ENGINE AJ AK AL AM AP AQ AR AS AT YG YH YJ YK VK, ENGINE CAT 3054 3056 3056E, JCB 3CX 4CX TELEHANDERS, CAT 416C 416D 420D 426C 428C 428D 428D 426C 428C 428D 428D C 438D 442D, 312B 312C 315B, M312 M315 M316C M318C M318C M322C, TH103 TH350B TH355B TH460B TH62 TH63 TH82 TH83, 924G 924GZ 930G