Engine Model: CATERPILLAR D399 Line 1 PartNumber: 1W9191 Line 2 PartNumber: 1W9192 Line 3 PartNumber: 1W9193 Line 4 PartNumber: 1W9194 Line 5 PartNumber: 1W9195 Line 6 PartNumber: 1W9196 Line 7 PartNumber: 1W9197 Line 8 PartNumber: 1W9198 IF YOU CAN'T FIND WHAT YOU ARE LOOKING FOR, PLEASE CONTACT US. PRICE AND PART NUMBERS ARE USED FOR REFERENCE PURPOSES ONLY.