“37” Series
| Heavy Motions ® | Parker® Reference Number | Description |
| 37-H-05 | 305-8005-100 | 37, 1/2″ GEAR HOUSING, LA-1688-05 |
| 37-H-07 | 305-8007-100 | 37, 3/4″ GEAR HOUSING, LA-1688-07 |
| 37-H-10 | 305-8010-100 | 37, 1″ GEAR HOUSING, LA-1688-10 |
| 37-H-12 | 305-8012-100 | 37, 1-1/4″ GEAR HOUSING, LA-1688-12 |
| 37-H-15 | 305-8015-100 | 37, 1-1/2″ GEAR HOUSING, LA-1688-15 |
| 37-H-17 | 305-8017-100 | 37, 1-3/4″ GEAR HOUSING, LA-1688-17 |
| 37-H-20 | 305-8020-100 | 37, 2″ GEAR HOUSING, LA-1688-20 |
| 37-H-22 | 305-8022-100 | 37, 2-1/4″ GEAR HOUSING, LA-1688-22 |
| 37-H-25 | 305-8025-100 | 37, 2-1/2″ GEAR HOUSING, LA-1688-25 |
| 37-H-30 | 305-8030-100 | 37, 3″ GEAR HOUSING, LA-1688-30 |
| 37-PEC | 305-3100-100 | 37, PORT END COVER, NA-1603 |
| 37M-BC | 305-7300-100 | 37, BEARING CARRIER BLANK MOTOR, JA-1687 |
| 37M-SEC-2C | 305-5021-401 | 37, 2 BOLT “C” SHAFT END COVER w/case drain, MA-1686-3 |
| 37M-SEC-4C | 305-5031-403 | 37, 4 BOLT “C” SHAFT END COVER w/case drain, HA-1686-3 |
| Heavy Motions ® | Parker® Reference Number | Description |
| 37-G-05 | 305-2805-000 | GEAR SET, JA-1007M-05, 1/2″ |
| 37-G-07 | 305-2807-000 | GEAR SET, JA-1007M-07, 3/4″ |
| 37-G-10 | 305-2810-000 | GEAR SET, JA-1007M-10, 1″ |
| 37-G-12 | 305-2812-000 | GEAR SET, JA-1007M-12, 1-1/4″ |
| 37-G-15 | 305-2815-000 | GEAR SET, JA-1007M-15, 1-1/2″ |
| 37-G-17 | 305-2817-000 | GEAR SET, JA-1007M-17, 1-3/4″ |
| 37-G-20 | 305-2820-000 | GEAR SET, JA-1007M-20, 2″ |
| 37-G-22 | 305-2822-000 | GEAR SET, JA-1007M-22, 2-1/4″ |
| 37-G-25 | 305-2825-000 | GEAR SET, JA-1007M-25, 2-1/2″ |
| 37-G-30 | 305-2830-000 | GEAR SET, JA-1007M-30, 3″ |
| Heavy Motions ® | Parker® Reference Number | Description |
| WR1032 | 391-0381-904 | 391-0381-060, 37/76 ROLLER BEARING, R-1032 |
| Heavy Motions ® | Parker® Reference Number | Description |
| HM391-2883-052 | 391-2883-052 | 37/76/P365 PUMP SHAFT SEAL, X73-37-10 |
| HM391-2884-023 | 391-2884-023 | M365 / 37X PUMP BODY GASKET, UB-3006-249 |
| Heavy Motions ® | Parker® Reference Number | Description |
| P37-THRUST | 391-2185-009 | P37 THRUST PLATE, X-1058 |


