| Item | Part No. | Part Name | Qty | Serial No. |
| 421-U12-3100 | Pre-cleaner | 1006- | ||
| 1 | Hood | 1006- | ||
| 2 | 421-U12-3130 | Body | 1006- | |
| 3 | 421-U12-3140 | Clamp | 1006- | |
| 4 | 421-U12-3150 | Rotor | 1006- | |
| 5 | 421-U12-3160 | Bolt | 1006- | |
| 6 | 421-U12-3170 | Ring, Snap | 1006- | |
| 7 | 421-U12-3180 | Bearing, Ball | 1006- | |
| 8 | 421-U12-3190 | Bushing | 1006- | |
| 9 | 421-U12-3210 | Washer | 1006- | |
| 10 | 421-U12-3220 | Washer, Flat | 1006- | |
| 11 | 421-U12-3230 | Nut | 1006- | |
| 12 | 421-U12-3240 | Bolt | 1006- | |
| 13 | 421-U12-3250 | Nut | 1006- | |
| 14 | 421-U12-3260 | Plug, Plastic | 1006- |