OPI 700HDL Mud pump parts list
| Liners & Liner Packing |
| SIZES | LINER | LINER PACKING |
| 4” | MK-0481-40 | MKG-0753 |
| 4½” | MK-0481-44 | MKG-0754 |
| 5” | MK-0481-50 | MKG-0742 |
| 5½” | MK-0481-54 | MKG-0743 |
| 6” | MK-0481-60 | MKG-0745 |
| 6½” | MK-0481-64 | MKG-0746 |
| 7” | MK-0481-70 | MKG-0756 |
| Gaskets |
| Valve Cover Gasket | Cylinder Head Gasket |
| MKG-0745 | MKG-0745 |
| SERIES | KING – 4 WEB | KING – FULL OPEN | KING – G2 | MKP-ROUGHNECK |
| VALVE (Urethane Insert) | MK-U5B-EH | MK-6FO-V1 | MK-1560995 | MK-RN6-V1 |
| VALVE (Rubber Insert) | MK-5BEH | N/A | N/A | N/A |
| VALVE SEAT | MK-6ADD-B6 | MK-6FO-S1 | MK-1561380 | MK-RN6-S6 |
| VALVE SPRING | MK-5710-115 | MK-5710-115 | MK-1560701 | MK-5710-115 |
| VALVE INSERT (Red Thunder) | MK-UDD-6ABHT | N/A | MK-1560587 | N/A |
| VALVE INSERT (Urethane) | MK-UDD-6AB | MK-6FO-SI | N/A | MK-RN6-I |
| VALVE INSERT (Rubber) | MK-DD-6AB | N/A | N/A | N/A |
| VALVE SEAT PULLER HEAD | MK-1700-6 | MK-1700-6FO | MK-1700-6G2 | MK-1700-6FO |
| Piston Size | Red Thunder Bonded Pistons | Imperial Piston | Imperial Rubber Kits | Rubber Bonded | Long Life (Urethane) |
| 4½” | MK-RT-440 | MK-I44HK14/15 | MK-I44HK | MK-RB-440 | MK-LL-440 |
| 5” | MK-RT-500 | MK-I50HB14/15 | MK-I50HB | MK-RB-500 | MK-LL-500 |
| 5½” | MK-RT-540 | MK-I54HB14/15 | MK-I54HB | MK-RB-540 | MK-LL-540 |
| 6” | MK-RT-600 | MK-I60HB14/15 | MK-I60HB | MK-RB-600 | MK-LL-600 |
| 6½” | MK-RT-640 | MK-I64HL14/15 | MK-I64HL | MK-RB-640 | MK-LL-640 |
| 7” | MK-RT-700 | MK-I70HL14/15 | MK-I70HL | MK-RB-700 | MK-LL-700 |
* ¼ Size are available upon request
| RODS |
| PISTON ROD | SUB ROD | EXTENSION ROD | EXTENSION
ROD CLAMP | PISTON
ROD CLAMP | PISTON ROD NUT |
| CLAMP TYPE | MK-0482 | MK-0482-B | MK-16-0481 | MK-24-0481 | MK-24-0482 | MK-7403364 |
| THREAD TYPE | MK-0481 | MK-0481-B | MK-16-0481 | N/A | N/A | MK-7403364 |
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