| Item | Part No. | Part Name | Qty | Serial No. |
| 258-80-57100 | OIL PUMP ASS'Y,HST | 6001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.6101 AND 6102. | ||||
| 1 | 257-81-41120 | SEAL | 6001- | |
| 2 | 257-81-41130 | PLATE | 6001- | |
| 3 | 257-81-41140 | BLOCK | 6001- | |
| 4 | 257-81-41150 | GASKET | 6001- | |
| 5 | 257-81-41160 | BEARING | 6001- | |
| 6 | 266-81-61730 | PIN | 6001- | |
| 7 | 257-81-41180 | PIN | 6001- | |
| 8 | 257-81-41190 | SCREW | 6001- | |
| 9 | 257-81-41210 | SCREW | 6001- | |
| 10 | 258-81-21220 | PLUG | 6001- | |
| 11 | 257-81-41230 | PLUG | 6001- | |
| 12 | 258-81-21170 | PLUG | 6001- | |
| 13 | 257-81-41270 | BRACKET | 6001- | |
| 14 | 257-81-41280 | SHAFT | 6001- | |
| 15 | 257-81-41290 | BEARING | 6001- | |
| 16 | 257-81-41310 | RING | 6001- | |
| 17 | 257-81-41320 | O-RING | 6001- | |
| 18 | 257-81-41330 | CARRIER | 6001- | |
| 19 | 257-81-41340 | RING | 6001- | |
| 20 | 257-81-41350 | PLATE | 6001- | |
| 21 | 257-81-41420 | O-RING | 6001- | |
| 22 | 257-81-41440 | PLUG | 6001- | |
| 23 | 258-81-21130 | O-RING | 6001- | |
| 24 | 257-81-41460 | SHIM | 6001- | |
| 25 | 257-81-41470 | SPRING | 6001- | |
| 26 | 257-81-41480 | POPPET | 6001- | |
| 27 | 258-81-31170 | PLUG | 6001- | |
| 28 | 258-81-31110 | NIPPLE | 6001- | |
| 29 | 258-81-31120 | PLUG | 6001- | |
| 30 | 258-81-31130 | PLUG | 6001- | |
| 31 | 258-81-21130 | O-RING | 6001- | |
| 32 | 258-81-31140 | TEE | 6001- | |
| 33 | 266-81-62260 | PLUG ASS'Y | 6001- | |
| 34 | 266-81-62530 | PLUG | 6001- | |
| 35 | 258-81-55110 | VALVE,BYPASS | 6001- | |
| 36 | 257-81-41550 | PLUG | 6001- | |
| 37 | 258-81-12520 | O-RING | 6001- | |
| 38 | 258-81-55150 | SPRING | 6001- | |
| 39 | 257-81-41610 | VALVE | 6001- | |
| 40 | 257-81-41620 | PLATE | 6001- | |
| 41 | 257-81-41630 | BEARING | 6001- | |
| 42 | 257-81-41640 | SHIM | 6001- | |
| 43 | 257-81-41650 | SPACER | 6001- | |
| 44 | 257-81-41660 | O-RING | 6001- | |
| 45 | 258-81-55120 | COVER | 6001- | |
| 46 | 258-81-55130 | MDC ASS'Y | 6001- | |
| 47 | 257-81-41690 | SCREW | 6001- | |
| 48 | 266-81-61630 | KEY | 6001- | |
| 49 | 258-81-31150 | FLANGE | 6001- | |
| 50 | 258-81-31160 | SCREW | 6001- | |
| 51 | 258-81-31180 | WASHER | 6001- | |
| 52 | 258-81-31190 | COUPLING | 6001- | |
| 53 | 258-81-22820 | O-RING | 6001- | |
| 54 | 258-81-31210 | COVER | 6001- | |
| 55 | 258-81-21580 | SCREW | 6001- | |
| 56 | 257-81-41740 | WASHER | 6001- | |
| 57 | 257-81-41750 | ELBOW | 6001- | |
| 58 | 258-81-55140 | ELBOW | 6001- | |
| 59 | 257-81-41760 | HOSE | 6001- |