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Company News · Model reference guide

OPI 700HDL Mud Pump Spare Parts

Published by Pratt Oil ·

Pratt OilParts identification
OPI 700HDL source expendables reference table

The OPI 700HDL list includes clamp-type piston rod MK-0482 and a separate thread-type rod arrangement. Identify the installed connection before selecting the rod, clamp or associated piston components. For a quotation, send the part or drawing number, quantity, pump model and nameplate photo.

Parts List

Browse all part-number references

Download parts list (CSV)

81 parts

P/PPart / Drawing No.NamePart / Drawing No.Name
1MK-0481-40Liner, nominal size 4''MK-RT-440Red Thunder Bonded Pistons; nominal piston size 4½''
2MKG-0753Liner Packing, nominal size 4''MK-I44HK14/15Imperial Piston; nominal piston size 4½''
3MK-0481-44Liner, nominal size 4½''MK-I44HKImperial Rubber Kits; nominal piston size 4½''
4MKG-0754Liner Packing, nominal size 4½''MK-RB-440Rubber Bonded; nominal piston size 4½''
5MK-0481-50Liner, nominal size 5''MK-LL-440Long Life (Urethane); nominal piston size 4½''
6MKG-0742Liner Packing, nominal size 5''MK-RT-500Red Thunder Bonded Pistons; nominal piston size 5''
7MK-0481-54Liner, nominal size 5½''MK-I50HB14/15Imperial Piston; nominal piston size 5''
8MKG-0743Liner Packing, nominal size 5½''MK-I50HBImperial Rubber Kits; nominal piston size 5''
9MK-0481-60Liner, nominal size 6''MK-RB-500Rubber Bonded; nominal piston size 5''
10MKG-0745Liner Packing, nominal size 6''MK-LL-500Long Life (Urethane); nominal piston size 5''
11MK-0481-64Liner, nominal size 6½''MK-RT-540Red Thunder Bonded Pistons; nominal piston size 5½''
12MKG-0746Liner Packing, nominal size 6½''MK-I54HB14/15Imperial Piston; nominal piston size 5½''
13MK-0481-70Liner, nominal size 7''MK-I54HBImperial Rubber Kits; nominal piston size 5½''
14MKG-0756Liner Packing, nominal size 7''MK-RB-540Rubber Bonded; nominal piston size 5½''
15MKG-0745Valve Cover GasketMK-LL-540Long Life (Urethane); nominal piston size 5½''
16MKG-0745Cylinder Head GasketMK-RT-600Red Thunder Bonded Pistons; nominal piston size 6''
17MK-U5B-EHValve; catalogue valve family MKP-4 WEBMK-I60HB14/15Imperial Piston; nominal piston size 6''
18MK-6ADD-B6Seat; catalogue valve family MKP-4 WEBMK-I60HBImperial Rubber Kits; nominal piston size 6''
19MK-5710-115Spring; catalogue valve family MKP-4 WEBMK-RB-600Rubber Bonded; nominal piston size 6''
20MK-UDD-6ABUrethane Insert; catalogue valve family MKP-4 WEBMK-LL-600Long Life (Urethane); nominal piston size 6''
21MK-1700-6Puller Head; catalogue valve family MKP-4 WEBMK-RT-640Red Thunder Bonded Pistons; nominal piston size 6½''
22MK-U5B-EHHTValve; catalogue valve family MKP-4 WEB HIGH TEMPMK-I64HL14/15Imperial Piston; nominal piston size 6½''
23MK-6ADD-B6Seat; catalogue valve family MKP-4 WEB HIGH TEMPMK-I64HLImperial Rubber Kits; nominal piston size 6½''
24MK-5710-115Spring; catalogue valve family MKP-4 WEB HIGH TEMPMK-RB-640Rubber Bonded; nominal piston size 6½''
25MK-UDD-6ABHTUrethane Insert; catalogue valve family MKP-4 WEB HIGH TEMPMK-LL-640Long Life (Urethane); nominal piston size 6½''
26MK-1700-6Puller Head; catalogue valve family MKP-4 WEB HIGH TEMPMK-RT-700Red Thunder Bonded Pistons; nominal piston size 7''
27MK-6FO-V1Valve; catalogue valve family MKP-FULL OPENMK-I70HL14/15Imperial Piston; nominal piston size 7''
28MK-6FO-S1Seat; catalogue valve family MKP-FULL OPENMK-I70HLImperial Rubber Kits; nominal piston size 7''
29MK-5710-115Spring; catalogue valve family MKP-FULL OPENMK-RB-700Rubber Bonded; nominal piston size 7''
30MK-6FO-SIUrethane Insert; catalogue valve family MKP-FULL OPENMK-LL-700Long Life (Urethane); nominal piston size 7''
31MK-1700-6FOPuller Head; catalogue valve family MKP-FULL OPENMK-0482Piston Rod; clamp type
32MK-1560995Valve; catalogue valve family MKP-G2MK-0482-BSub Rod; clamp type
33MK-1561380Seat; catalogue valve family MKP-G2MK-16-0481Extension Rod; clamp type
34MK-1560701Spring; catalogue valve family MKP-G2MK-24-0481Extension Rod Clamp; clamp type
35MK-1560587Urethane Insert; catalogue valve family MKP-G2MK-24-0482Piston Rod Clamp; clamp type
36MK-1700-6G2Puller Head; catalogue valve family MKP-G2MK-7403364Piston Rod Nut; clamp type
37MK-RN6-V1Valve; catalogue valve family MKP-ROUGHNECKMK-0481Piston Rod; thread type
38MK-RN6-S6Seat; catalogue valve family MKP-ROUGHNECKMK-0481-BSub Rod; thread type
39MK-5710-115Spring; catalogue valve family MKP-ROUGHNECKMK-16-0481Extension Rod; thread type
40MK-RN6-IUrethane Insert; catalogue valve family MKP-ROUGHNECKMK-7403364Piston Rod Nut; thread type
41MK-1700-6FOPuller Head; catalogue valve family MKP-ROUGHNECK
Technical details and source references

Confirm the installed model, drawing revision and dimensions before ordering. Catalogue quantities do not indicate current stock.

Reference documents and scope

  • S1 — Mud King Products, Mud Pump Expendables / Triplex Fluid End Parts (source catalogue edition undated). Reference file: EMSCO-MK-美国泥浆泵.pdf.

PDF page numbers count from the first page of each reference file. Brand names identify the equipment or catalogue source. A listed number does not establish interchangeability, original-manufacturer authorisation, stock or a delivery commitment. Send the nameplate, complete reference, quantity and drawing revision for a parts review.

For a OPI 700HDL mud pump parts enquiry, the complete component reference is more useful than the pump model alone. The Mud King Products catalogue separates expendable parts by nominal size, component family and installed arrangement. This guide transcribes the identifiable supplier-number entries associated with OPI 700HDL, with their original page and table context, so a buyer can assemble a clearer maintenance RFQ.

Liner Packing and Rod-Connection References

The 700HDL expendables sheet lists liners from 4 to 7 inches with size-specific packing references. For example, the 4-inch liner is MK-0481-40 and its packing is MKG-0753, whereas the 7-inch row uses MK-0481-70 with MKG-0756. The packing code should travel with the liner size; a request for a generic 700HDL liner seal leaves an important selection detail unresolved.

The rod table separates clamp-type and thread-type arrangements. Its piston-rod entries are MK-0482 and MK-0481 respectively, with different sub-rod references. A photograph of the installed connection is therefore more useful than choosing from the model name alone. The valve table also keeps the seat, spring, insert and puller head in separate columns, so these should be separate RFQ lines.

Read the catalogue reference correctly

The accompanying reference list covers the identifiable number-bearing cells in the relevant source tables, not a complete original-manufacturer bill of materials. MK and MKG identify supplier catalogue references; their prefixes, punctuation and combined suffixes are retained. A value marked N/A or left blank is not replaced by an invented number. A shared model heading records the catalogue scope and does not by itself confirm interchangeability on an individual pump.

Information to send for parts matching

Send the pump nameplate and serial number, full reference including its prefix, required quantity and a photograph of the installed or removed component. For liners and pistons, add the nominal size and sealing arrangement. For fluid-end hardware, identify the module configuration and whether an individual component or a studded assembly is required. Keep any original equipment drawing number as a separate field rather than stripping the supplier prefix to assume an OEM match.

Review mud pump spare parts matching, compare liners, pistons, valves and seats, or send Pratt Oil a parts list for review. Matching and availability require confirmation; these references do not establish authorisation, inventory or a delivery promise.

  1. MK-0481-40 — S1 , PDF p. 10 — Liners and liner packing; source row 4''; Mud King supplier catalogue number
  2. MKG-0753 — S1 , PDF p. 10 — Liners and liner packing; source row 4''; Mud King supplier catalogue number
  3. MK-0481-44 — S1 , PDF p. 10 — Liners and liner packing; source row 4½''; Mud King supplier catalogue number
  4. MKG-0754 — S1 , PDF p. 10 — Liners and liner packing; source row 4½''; Mud King supplier catalogue number
  5. MK-0481-50 — S1 , PDF p. 10 — Liners and liner packing; source row 5''; Mud King supplier catalogue number
  6. MKG-0742 — S1 , PDF p. 10 — Liners and liner packing; source row 5''; Mud King supplier catalogue number
  7. MK-0481-54 — S1 , PDF p. 10 — Liners and liner packing; source row 5½''; Mud King supplier catalogue number
  8. MKG-0743 — S1 , PDF p. 10 — Liners and liner packing; source row 5½''; Mud King supplier catalogue number
  9. MK-0481-60 — S1 , PDF p. 10 — Liners and liner packing; source row 6''; Mud King supplier catalogue number
  10. MKG-0745 — S1 , PDF p. 10 — Liners and liner packing; source row 6''; Mud King supplier catalogue number
  11. MK-0481-64 — S1 , PDF p. 10 — Liners and liner packing; source row 6½''; Mud King supplier catalogue number
  12. MKG-0746 — S1 , PDF p. 10 — Liners and liner packing; source row 6½''; Mud King supplier catalogue number
  13. MK-0481-70 — S1 , PDF p. 10 — Liners and liner packing; source row 7''; Mud King supplier catalogue number
  14. MKG-0756 — S1 , PDF p. 10 — Liners and liner packing; source row 7''; Mud King supplier catalogue number
  15. MKG-0745 — S1 , PDF p. 10 — Gaskets; Mud King supplier catalogue number
  16. MKG-0745 — S1 , PDF p. 10 — Gaskets; Mud King supplier catalogue number
  17. MK-U5B-EH — S1 , PDF p. 10 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  18. MK-6ADD-B6 — S1 , PDF p. 10 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  19. MK-5710-115 — S1 , PDF p. 10 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  20. MK-UDD-6AB — S1 , PDF p. 10 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  21. MK-1700-6 — S1 , PDF p. 10 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  22. MK-U5B-EHHT — S1 , PDF p. 10 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  23. MK-6ADD-B6 — S1 , PDF p. 10 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  24. MK-5710-115 — S1 , PDF p. 10 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  25. MK-UDD-6ABHT — S1 , PDF p. 10 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  26. MK-1700-6 — S1 , PDF p. 10 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  27. MK-6FO-V1 — S1 , PDF p. 10 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  28. MK-6FO-S1 — S1 , PDF p. 10 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  29. MK-5710-115 — S1 , PDF p. 10 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  30. MK-6FO-SI — S1 , PDF p. 10 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  31. MK-1700-6FO — S1 , PDF p. 10 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  32. MK-1560995 — S1 , PDF p. 10 — Valve family MKP-G2; Mud King supplier catalogue number
  33. MK-1561380 — S1 , PDF p. 10 — Valve family MKP-G2; Mud King supplier catalogue number
  34. MK-1560701 — S1 , PDF p. 10 — Valve family MKP-G2; Mud King supplier catalogue number
  35. MK-1560587 — S1 , PDF p. 10 — Valve family MKP-G2; Mud King supplier catalogue number
  36. MK-1700-6G2 — S1 , PDF p. 10 — Valve family MKP-G2; Mud King supplier catalogue number
  37. MK-RN6-V1 — S1 , PDF p. 10 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  38. MK-RN6-S6 — S1 , PDF p. 10 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  39. MK-5710-115 — S1 , PDF p. 10 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  40. MK-RN6-I — S1 , PDF p. 10 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  41. MK-1700-6FO — S1 , PDF p. 10 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  42. MK-RT-440 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 4½''; Mud King supplier catalogue number
  43. MK-I44HK14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 4½''; Mud King supplier catalogue number
  44. MK-I44HK — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 4½''; Mud King supplier catalogue number
  45. MK-RB-440 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 4½''; Mud King supplier catalogue number
  46. MK-LL-440 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 4½''; Mud King supplier catalogue number
  47. MK-RT-500 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 5''; Mud King supplier catalogue number
  48. MK-I50HB14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 5''; Mud King supplier catalogue number
  49. MK-I50HB — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 5''; Mud King supplier catalogue number
  50. MK-RB-500 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 5''; Mud King supplier catalogue number
  51. MK-LL-500 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 5''; Mud King supplier catalogue number
  52. MK-RT-540 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 5½''; Mud King supplier catalogue number
  53. MK-I54HB14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 5½''; Mud King supplier catalogue number
  54. MK-I54HB — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 5½''; Mud King supplier catalogue number
  55. MK-RB-540 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 5½''; Mud King supplier catalogue number
  56. MK-LL-540 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 5½''; Mud King supplier catalogue number
  57. MK-RT-600 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 6''; Mud King supplier catalogue number
  58. MK-I60HB14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 6''; Mud King supplier catalogue number
  59. MK-I60HB — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 6''; Mud King supplier catalogue number
  60. MK-RB-600 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 6''; Mud King supplier catalogue number
  61. MK-LL-600 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 6''; Mud King supplier catalogue number
  62. MK-RT-640 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 6½''; Mud King supplier catalogue number
  63. MK-I64HL14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 6½''; Mud King supplier catalogue number
  64. MK-I64HL — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 6½''; Mud King supplier catalogue number
  65. MK-RB-640 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 6½''; Mud King supplier catalogue number
  66. MK-LL-640 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 6½''; Mud King supplier catalogue number
  67. MK-RT-700 — S1 , PDF p. 10 — Piston family Red Thunder Bonded Pistons; size 7''; Mud King supplier catalogue number
  68. MK-I70HL14/15 — S1 , PDF p. 10 — Piston family Imperial Piston; size 7''; Mud King supplier catalogue number
  69. MK-I70HL — S1 , PDF p. 10 — Piston family Imperial Rubber Kits; size 7''; Mud King supplier catalogue number
  70. MK-RB-700 — S1 , PDF p. 10 — Piston family Rubber Bonded; size 7''; Mud King supplier catalogue number
  71. MK-LL-700 — S1 , PDF p. 10 — Piston family Long Life (Urethane); size 7''; Mud King supplier catalogue number
  72. MK-0482 — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  73. MK-0482-B — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  74. MK-16-0481 — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  75. MK-24-0481 — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  76. MK-24-0482 — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  77. MK-7403364 — S1 , PDF p. 10 — Rod arrangement CLAMP TYPE; Mud King supplier catalogue number
  78. MK-0481 — S1 , PDF p. 10 — Rod arrangement THREAD TYPE; Mud King supplier catalogue number
  79. MK-0481-B — S1 , PDF p. 10 — Rod arrangement THREAD TYPE; Mud King supplier catalogue number
  80. MK-16-0481 — S1 , PDF p. 10 — Rod arrangement THREAD TYPE; Mud King supplier catalogue number
  81. MK-7403364 — S1 , PDF p. 10 — Rod arrangement THREAD TYPE; Mud King supplier catalogue number

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