| 285B Series Parts List | |||
| Item | PartNumber | PartDescription | IREquivalent |
| 1 | 9595 | TriggerHandle Assembly (2, 3, 5, 6) | 285B-A92A |
| 2 | 9663 | Trigger | 285B-93A |
| 3 | 9584 | Slot Cover | 285B-438 |
| 4 | Nameplate and4 rivets | 285B-A301 | |
| 5 | 9591 | Stop Pin | 285B-439 |
| 6 | Pin, Spring | 285B-437 | |
| 7 | 9588 | Plunger,Throttle Valve | 285B-302 |
| 8 | 9587 | ThrottleValve | 285B-50 |
| 9 | 9577 | Spring,Throttle Valve | 285B-51 |
| 10 | 8147 | Inlet BushingAssembly | 285B-A565 |
| 11 | 9580 | O-Ring | 285B-566 |
| 12 | 9667 | Reverse ValveAssembly Includes 12,13,14,15,16,17 | 285B-A329 |
| 13 | 9589 | Stop Pin | 285B-332 |
| 14 | 9586 | Spring | 285B-334 |
| 15 | 9590 | Ball | 285B-333 |
| 16 | 9579 | Reverse ValveSeal | 285B-338 |
| 17 | 9591 | Pin, Spring | 285B-120 |
| 18 | 9568 | Gasket,Handle | 285B-283 |
| 19 | 9668A/9668B | Handle CapScrew and washer | |
| 9668 | (Set of 8) | 285B-A638 | |
| 20 | 9582 | Rear RotorBearing | 285B-24 |
| 21 | 9620 | End Platewith alignment pin | 285B-A12 |
| 22 | Pin, Spring | ||
| 23 | 9669 | Rotor | 285B-53 |
| 24 | 2467 | Vane Pack(Set of 6) | 285B-42-6 |
| 25 | 9670 | Cylinder andalignment pins | 285B-A3 |
| 26 | 8478 | Pin, Spring | (2) |
| 27 | 9619 | Front EndPlate | 285B-11 |
| 28 | 9583 | Front RotorBearing | 285B-96 |
| 29 | - | Tool Gaurd | 431L-32 |
| 30 | 9594 | Motor Housing | 285B-40 |
| 31 | 8614 | Hammer Frame | 285B-703 |
| 32 | 9672 | Hammer | 285B-724 |
| 33 | 9673 | Hammer Cam | 285B-721 |
| 34 | 9593 | AnvilAssembly, Std. Length | 285B-A726 |
| 35 | 9674 | AnvilAssembly, 6" extended Length | 285B-A726-6 |
| 36 | 9578 | O-Ring | BBFM-557 |
| 37 | 8661 | Retainer Ring | 910E5-918 |
| 38 | - | 6" Extended#5 Spline Anvil | 285B-A514-6 |
| 39 | - | O-Ring | 285B-S-557 |
| 40 | - | RetainingRing | 285B-S-918 |
| 41 | 8613 | Side Plate | 285B-706 |
| 42 | 9585 | Hammer CaseGasket | 285B-36 |
| 43 | 9613 | Hammer CaseAssembly | 285B-A727 |
| 44 | 9679 | Hammer CaseBushing | 285B-641 |
| 45 | 9581 | Oil Seal | 285B-642 |
| 46 | - | Warning Label | Warning-2-99 |
| 47 | 9596 | Dead Handle(Angled) | 285B-A48-6 |
| 48 | 9680 | Dead Handle(Straight) | 285B-A48 |
| 49 | 8489 | Screw | |
| 49 | 8490 | Washer (3) | |
| 50 | 8727 | Hammer Case Guard | 431L-62 |
| - | 9984 | Tune up kit (includes items 3,7,8,9,11,13,14,15,16,17,18,20,24,28,35, 36) | 285B-TK1 |
