| Item | Part No. | Part Name | Qty | Serial No. |
| (20T-60-00400) | PUMP ASS'Y | 8501- | ||
| 1 | KB20122-47401 | PLATE,WITH COUPLING | 8501- | |
| 2 | \6\ | BODY | 8501- | |
| KB2012B-40061 | GEAR ASS'Y | 8501- | ||
| 3 | \6\ | GEAR,DRIVE (K4) | 8501- | |
| 4 | \6\ | GEAR,DRIVEN (K4) | 8501- | |
| 5 | \6\ | BUSHING (K4) | 8501- | |
| 6 | \6\ | BUSHING (K4) | 8501- | |
| 7 | \6\ | SEAL (K1) | 8501- | |
| 8 | \6\ | PACKING (K1) | 8501- | |
| 9 | \6\ | PACKING (K1) | 8501- | |
| 10 | \6\ | SEAL (K1) | 8501- | |
| 11 | KB20121-37001 | COVER | 8501- | |
| 12 | KB20121-41289 | STUD | 8501- | |
| 13 | KB94101-10250 | WASHER,SPRING | 8501- | |
| 14 | KB20121-31902 | NUT | 8501- | |
| K1 | KB2012A-50001 | SERVICE KIT | 8501- | |
| K1 | KB20121-31406 | SEAL,OIL | 8501- | |
| K1 | KB94721-34151 | RING,SNAP | 8501- | |
| K1 | KB20121-30901 | SEAL | 8501- | |
| K1 | KB20121-31101 | PACKING | 8501- | |
| K1 | KB20121-31001 | PACKING | 8501- | |
| K1 | KB20121-30801 | SEAL | 8501- | |
| K2 | KB2012B-50009 | GEAR ASS'Y | 8501- | |
| K2 | \6\ | GEAR,DRIVE | 8501- | |
| K2 | \6\ | GEAR,DRIVEN | 8501- | |
| K2 | \6\ | BUSHING | 8501- | |
| K2 | \6\ | BUSHING | 8501- | |
| K3 | KB2012B-40060 | GEAR ASS'Y | 8501- | |
| K3 | \6\ | GEAR,DRIVE | 8501- | |
| K3 | \6\ | GEAR,DRIVEN | 8501- | |
| K3 | \6\ | BUSHING | 8501- | |
| K3 | \6\ | BUSHING | 8501- | |
| K4 | KB2012B-40061 | GEAR ASS'Y | 8501- | |
| K4 | \6\ | GEAR,DRIVE | 8501- | |
| K4 | \6\ | GEAR,DRIVEN | 8501- | |
| K4 | \6\ | BUSHING | 8501- | |
| K4 | \6\ | BUSHING | 8501- |