COMPRESSION Valve Seat Inserts Fig.  13 - Inserting Pilot Fig.  14 - Counterboring for Valve Seat Aluminum alloy cylinder models are equipped with inserts on exhaust and intake side.  See Table 3. TABLE NO.  3 VALVE SEAT INSERTS INSERT # INTAKE EXHAUST EXHAUST PULLER PULLER BASIC MODEL SERIES STANDARD STANDARD STELLITE ASSEMBLY NUT ALUMINUM CYLINDER 6B, 8B 211291 211291 210452 19138 19140 Ex. 19182 In. 60000, 80000 210879* 211291 210452 19138 19140 Ex. 19182 In. 82000,92000,94000,110000 210879 211291 210452 19138 19140 Ex. 19182 In. 100000, 130000, 131000 211787 211172 211436 19138 19182 Ex. 19139 In. 140000, 170000, 190000 211661 211661 210940tt 19138 19141 251000 211661 211661 210940 19138 19141 220000, 252000, 253000 261463 211661 210940 CAST IRON CYLINDER 5, 6, N 63838 21865 19138 19140 8 210135 21865 19138 19140 9 63007 63007 19138 19139 14, 19, 190000 21880 21880 21612 19138 19141 200000, 23, 230000 21880 21880 21612 19138 19141 240000 21880 21612 21612 19138 19141 300000, 320000 21612 21612 19138 19141 *211291 used before Serial No.  5810060-210808 used from Serial No.  5810060 to No.  6012010. #Includes puller and no.  19182, 19141, 19140 and 19139 ruts. tt Before Code No.  7101260 replace cylinder. 6