The DS-232-7449 rear crankshaft seal can be used in the following Caterpillar engine models:
- 3054C and 3054E naturally aspirated with an engine serial number of:
- 3341 and above and arrangement number:
- 207-1080, 207-1101, 207-1102, 207-1104, 207-1108, 207-1126, 207-1149, 207-1151, 207-1159, 207-1170, 207-1171, 207-1173
- 219-7588, 219-7589
- 230-3483, 230-5540
- 241-8593, 241-8594, 241-8596
- 244-3104
- 257-8360, 257-8370
- CRS1 and above
- D1K1 and above
- E4M1 and above
- G4D1 and above
- 3054C and 3054E turbocharged with an engine serial number of:
- 304
- 3341 and above and arrangement number:
- 176-3172, 176-3180, 177-9752, 178-9011, 179-1795
- 188-5099, 188-5100
- 194-9477
- 207-1097, 207-1098, 207-1099, 207-1100, 207-1103, 207-1175
- 213-0296, 219-7590, 219-7591
- 223-6467, 223-6511, 223-7570, 227-4805
- 230-5539, 231-0178, 231-0179, 231-0180, 231-0181, 231-0182, 231-0183, 231-0184, 231-0186, 232-4502, 234-3059, 234-3061
- 241-8582, 241-8584, 241-8585, 241-8586, 244-3103, 244-3105
- 256-4720, 257-8359, 257-8362, 257-8364, 257-8369, 257-8374, 257-8375, 257-8376, 257-8380, 257-8381
- 270-0073
- 307-2279
- 318-5435, 318-5436, 319-2121
- 320-8414, 323-5725, 323-6954
- BLN1 and above
- CRS1 and above
- CRX107 and above
- E4M1 and above
- FDP1 and above
- G4D1 and above
- J1Z1 and above
- 3056E
- C3.3 naturally aspirated with an engine serial number of:
- E3J1 and above
- N3C1 and above
- N3X1 and above
- NCC1 and above
- X3B1 and above
- C3.3 turbocharged
- C4.4T Tier 3 Industrial engines
- C4.4T and C4.4TA Tier 3 engines
