| Item | Part No. | Part Name | Qty | Serial No. |
| 6684-91-5001 | ENGINE BRAKE ASS'Y | 125628- | ||
| 6684-91-5100 | BRAKE HOUSING ASS'Y | 125628- | ||
| 1 | 6684-91-5110 | HOUSING ASS'Y | 125628- | |
| 2 | 6684-91-5120 | BOLT | 125628- | |
| 3 | 6684-91-5130 | WASHER | 125628- | |
| 4 | 6684-91-5140 | SPRING | 125628- | |
| 5 | 6684-91-5150 | PISTON ASS'Y | 125628- | |
| 6 | 6684-91-5160 | NUT | 125628- | |
| 7 | 6684-91-5170 | SCREW | 125628- | |
| 8 | 6684-91-5180 | PISTON | 125628- | |
| 9 | 6684-91-5190 | SPRING | 125628- | |
| 10 | 6684-91-5210 | RETAINER | 125628- | |
| 11 | 6684-91-5220 | RING | 125628- | |
| 12 | 6684-91-5230 | BOLT | 125628- | |
| 13 | 6684-91-5240 | COVER | 125628- | |
| 14 | 6684-91-5250 | SPRING | 125628- | |
| 15 | 6684-91-5260 | SPOOL ASS'Y | 125628- | |
| 16 | 6684-91-5270 | PISTON | 125628- | |
| 17 | 6684-91-5280 | SCREW | 125628- | |
| 18 | 6684-91-5290 | TERMINAL | 125628- | |
| 19 | 6684-91-5310 | WASHER | 125628- | |
| 20 | 6684-91-5320 | BUSHING | 125628- | |
| 21 | 6684-91-5330 | NUT | 125628- | |
| 22 | 6684-91-5340 | VALVE ASS'Y | 125628- | |
| 23 | 6684-91-5350 | SEAL | 125628- | |
| 24 | 6684-91-5360 | SEAL | 125628- | |
| 25 | 6684-91-5370 | SEAL | 125628- | |
| 26 | 6684-91-5380 | SCREEN | 125628- | |
| 27 | 6684-91-5390 | RETAINER | 125628- | |
| 28 | 6684-91-5410 | SPACER | 125628- | |
| 29 | 6684-91-5690 | SPACER | 125628- | |
| 6684-91-5501 | ATTACHING PARTS G. | 125628- | ||
| 30 | 6684-91-5510 | GASKET | 125628- | |
| 31 | 6684-91-5520 | BOLT | 125628- | |
| 32 | 6684-91-5530 | WASHER | 125628- | |
| 33 | 6684-91-5540 | EXTENSION | 125628- | |
| 34 | 6684-91-5550 | WASHER | 125628- | |
| 35 | 6684-91-5560 | SEAL | 125628- | |
| 36 | 6684-91-5570 | SLEEVE | 125628- | |
| 37 | 02205-10812 | NUT | 125628- | |
| 38 | 6684-91-5590 | STUD | 125628- | |
| 39 | 6684-91-5870 | STUD | 125628- | |
| 40 | 6684-91-5840 | HARNESS | 125628- | |
| 41 | 02310-11632 | WASHER | 125628- | |
| 42 | 6684-91-5850 | STUD | 125628- |