Mudking NATIONAL 8-P-80 Mud pump parts list
| Liners & Liner Packing | ||
| SIZES | LINER | LINER PACKING |
| 4” | MK-0256-40 | MKG-0272 |
| 4½” | MK-0256-44 | MKG-0274 |
| 5” | MK-0256-50 | MKG-0276 |
| 5½” | MK-0256-54 | MKG-0278 |
| 6” | MK-0256-60 | MKG-0280 |
| 6¼” | MK-0256-62 | MKG-0268 |
| 6½” | MK-0256-64 | MKG-0268 |
Gaskets
Valve Cover Gasket
MK-61-0255
Cylinder Head Gasket
N/A
| 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-5B-EH | N/A | N/A | N/A |
| VALVE SEAT | MK-6ADD-B4 | MK-6FO-S4 | MK-1561450 | MK-RN6-S4 |
| VALVE SPRING | MK-5710-115 | MK-5710-115 | MK-1560701 | MK-5710-115 |
| VALVE INSERT (Red Thunder) | MK-UDD-6ABHT | N/A | N/A | N/A |
| VALVE INSERT (Urethane) | MK-UDD-6B | MK-6FO-SI | MK-1560587 | MK-RN6-I |
| VALVE INSERT (Rubber) | MK-DD-6B | 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) |
| 4” | MK-RT-400 | MK-I40HK14/15 | MK-I40HK | MK-RB-400 | MK-LL-400 |
| 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-I64HB14/15 | MK-I64HB | MK-RB-640 | MK-LL-640 |
* ¼ Size are available upon request
RODS
PART NO.
PISTON ROD
MK-0259-A
SUB ROD
MK-0259-B
EXTENSION ROD
MK-16-0259
ROD CLAMP
MK-24-0259
PISTON ROD NUT
MK-7403364