Company News · Model reference guide

Oilwell A-600-PT Mud Pump Spare Parts

Published by Pratt Oil ·

Pratt OilParts identification
Oilwell A-600-PT source fluid-end reference drawing

Oilwell A-600-PT reference MK-0287-50 identifies a nominal 5-inch liner in the list. Keep liner size, piston construction and valve-component requirements separate when preparing a model-specific replacement-parts request. For a quotation, send the part or drawing number, quantity, pump model and nameplate photo.

Parts List

Download parts list (CSV)

101 parts

P/PPart / Drawing No.NamePart / Drawing No.Name
1MK-0287-40Liner, nominal size 4''MK-I44HKImperial Rubber Kits; nominal piston size 4½''
2MKG-0753Liner Packing, nominal size 4''MK-RB-440Rubber Bonded; nominal piston size 4½''
3MK-0287-44Liner, nominal size 4½''MK-LL-440Long Life (Urethane); nominal piston size 4½''
4MKG-0754Liner Packing, nominal size 4½''MK-RT-500Red Thunder Bonded Pistons; nominal piston size 5''
5MK-0287-50Liner, nominal size 5''MK-I50HB14/15Imperial Piston; nominal piston size 5''
6MKG-0742Liner Packing, nominal size 5''MK-I50HBImperial Rubber Kits; nominal piston size 5''
7MK-0287-54Liner, nominal size 5½''MK-RB-500Rubber Bonded; nominal piston size 5''
8MKG-0743Liner Packing, nominal size 5½''MK-LL-500Long Life (Urethane); nominal piston size 5''
9MK-0287-60Liner, nominal size 6''MK-RT-540Red Thunder Bonded Pistons; nominal piston size 5½''
10MKG-0745Liner Packing, nominal size 6''MK-I54HB14/15Imperial Piston; nominal piston size 5½''
11MK-0287-62Liner, nominal size 6¼''MK-I54HBImperial Rubber Kits; nominal piston size 5½''
12MKG-0770Liner Packing, nominal size 6¼''MK-RB-540Rubber Bonded; nominal piston size 5½''
13MK-0287-64Liner, nominal size 6½''MK-LL-540Long Life (Urethane); nominal piston size 5½''
14MKG-0746Liner Packing, nominal size 6½''MK-RT-600Red Thunder Bonded Pistons; nominal piston size 6''
15MK-0287-66Liner, nominal size 6¾''MK-I60HB14/15Imperial Piston; nominal piston size 6''
16MKG-0755Liner Packing, nominal size 6¾''MK-I60HBImperial Rubber Kits; nominal piston size 6''
17MK-0287-70Liner, nominal size 7''MK-RB-600Rubber Bonded; nominal piston size 6''
18MKG-0756Liner Packing, nominal size 7''MK-LL-600Long Life (Urethane); nominal piston size 6''
19MKG-0732Valve Cover GasketMK-RT-640Red Thunder Bonded Pistons; nominal piston size 6½''
20MK-U5B-EHValve; catalogue valve family MKP-4 WEBMK-I64HL14/15Imperial Piston; nominal piston size 6½''
21MK-6ADD-B6Seat; catalogue valve family MKP-4 WEBMK-I64HLImperial Rubber Kits; nominal piston size 6½''
22MK-5710-111Spring; catalogue valve family MKP-4 WEBMK-RB-640Rubber Bonded; nominal piston size 6½''
23MK-UDD-6ABUrethane Insert; catalogue valve family MKP-4 WEBMK-LL-640Long Life (Urethane); nominal piston size 6½''
24MK-1700-6Puller Head; catalogue valve family MKP-4 WEBMK-RT-700Red Thunder Bonded Pistons; nominal piston size 7''
25MK-U5B-EHHTValve; catalogue valve family MKP-4 WEB HIGH TEMPMK-I70HL14/15Imperial Piston; nominal piston size 7''
26MK-6ADD-B6Seat; catalogue valve family MKP-4 WEB HIGH TEMPMK-I70HLImperial Rubber Kits; nominal piston size 7''
27MK-5710-111Spring; catalogue valve family MKP-4 WEB HIGH TEMPMK-RB-700Rubber Bonded; nominal piston size 7''
28MK-UDD-6ABHTUrethane Insert; catalogue valve family MKP-4 WEB HIGH TEMPMK-LL-700Long Life (Urethane); nominal piston size 7''
29MK-1700-6Puller Head; catalogue valve family MKP-4 WEB HIGH TEMPMK-0283-CPiston Rod; part no.
30MK-6FO-V1Valve; catalogue valve family MKP-FULL OPENMK-0283-BSub Rod; part no.
31MK-6FO-S1Seat; catalogue valve family MKP-FULL OPENMK-0283-DConnecting Rod; part no.
32MK-5710-115Spring; catalogue valve family MKP-FULL OPENMK-16-0282Extension Rod; part no.
33MK-6FO-SIUrethane Insert; catalogue valve family MKP-FULL OPENMK-24-0284Rod Clamp; part no.
34MK-1700-6FOPuller Head; catalogue valve family MKP-FULL OPENMK-7403364Piston Rod Nut; part no.
35MK-1560995Valve; catalogue valve family MKP-G2MK-10-304-052Discharge Module, Studded (Included Items 2 – 6)
36MK-1561380Seat; catalogue valve family MKP-G2MK-45-810-063Stud – Discharge Manifold
37MK-1560701Spring; catalogue valve family MKP-G2MK-16-700-025Nut – Discharge Manifold
38MK-1560587Urethane Insert; catalogue valve family MKP-G2MK-45-810-020Stud – Frame
39MK-1700-6G2Puller Head; catalogue valve family MKP-G2MK-10-200-004Nut – Frame
40MK-RN6-V1Valve; catalogue valve family MKP-ROUGHNECKMK-10-305-110Wear Plate – Liner
41MK-RN6-S6Seat; catalogue valve family MKP-ROUGHNECKMK-20-100-014Gasket – Liner Wear Plate
42MK-5710-111Spring; catalogue valve family MKP-ROUGHNECKMK-75-632-135Cap Screw, Self Locking ½" – 13 × 1"
43MK-RN6-IUrethane Insert; catalogue valve family MKP-ROUGHNECKMK-20-200-004Valve Guide Bushing
44MK-1700-6FOPuller Head; catalogue valve family MKP-ROUGHNECKMK-10-304-054Valve Guide
45MK-RT-400Red Thunder Bonded Pistons; nominal piston size 4''MK-10-268-004Gasket – Valve Cover
46MK-I40HK14/15Imperial Piston; nominal piston size 4''MK-10-305-097Valve Cover
47MK-I40HKImperial Rubber Kits; nominal piston size 4''MK-10-305-020Liner Adapter
48MK-RB-400Rubber Bonded; nominal piston size 4''MK-10-305-037Nut – Liner Adapter
49MK-LL-400Long Life (Urethane); nominal piston size 4''MK-10-305-103Seal – Suction Manifold
50MK-RT-440Red Thunder Bonded Pistons; nominal piston size 4½''MK-08-568-023Seal – Discharge Manifold
51MK-I44HK14/15Imperial Piston; nominal piston size 4½''
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 Oilwell A-600-PT 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 Oilwell A-600-PT, with their original page and table context, so a buyer can assemble a clearer maintenance RFQ.

Shared Expendables and A-600 Module References

The expendables page is visibly headed A-350/600-PT, while the contents entry identifies A-600-PT. Its liner and rod references are retained with that joint-page context. For instance, the 5-inch liner is MK-0287-50, and the rod row distinguishes MK-0283-C, MK-0283-B and MK-0283-D as different components.

A separate module section explicitly names A-600-PT. It lists MK-10-304-052 for the studded discharge module, MK-10-304-054 for the valve guide and MK-10-305-097 for the valve cover. That module section is included for A-600, without extending it to A-350 merely because their expendables share a page. Compare the installed module, seal arrangement and required hardware before requesting an assembly.

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-0287-40 — S1 , PDF p. 24 — Liners and liner packing; source row 4''; Mud King supplier catalogue number
  2. MKG-0753 — S1 , PDF p. 24 — Liners and liner packing; source row 4''; Mud King supplier catalogue number
  3. MK-0287-44 — S1 , PDF p. 24 — Liners and liner packing; source row 4½''; Mud King supplier catalogue number
  4. MKG-0754 — S1 , PDF p. 24 — Liners and liner packing; source row 4½''; Mud King supplier catalogue number
  5. MK-0287-50 — S1 , PDF p. 24 — Liners and liner packing; source row 5''; Mud King supplier catalogue number
  6. MKG-0742 — S1 , PDF p. 24 — Liners and liner packing; source row 5''; Mud King supplier catalogue number
  7. MK-0287-54 — S1 , PDF p. 24 — Liners and liner packing; source row 5½''; Mud King supplier catalogue number
  8. MKG-0743 — S1 , PDF p. 24 — Liners and liner packing; source row 5½''; Mud King supplier catalogue number
  9. MK-0287-60 — S1 , PDF p. 24 — Liners and liner packing; source row 6''; Mud King supplier catalogue number
  10. MKG-0745 — S1 , PDF p. 24 — Liners and liner packing; source row 6''; Mud King supplier catalogue number
  11. MK-0287-62 — S1 , PDF p. 24 — Liners and liner packing; source row 6¼''; Mud King supplier catalogue number
  12. MKG-0770 — S1 , PDF p. 24 — Liners and liner packing; source row 6¼''; Mud King supplier catalogue number
  13. MK-0287-64 — S1 , PDF p. 24 — Liners and liner packing; source row 6½''; Mud King supplier catalogue number
  14. MKG-0746 — S1 , PDF p. 24 — Liners and liner packing; source row 6½''; Mud King supplier catalogue number
  15. MK-0287-66 — S1 , PDF p. 24 — Liners and liner packing; source row 6¾''; Mud King supplier catalogue number
  16. MKG-0755 — S1 , PDF p. 24 — Liners and liner packing; source row 6¾''; Mud King supplier catalogue number
  17. MK-0287-70 — S1 , PDF p. 24 — Liners and liner packing; source row 7''; Mud King supplier catalogue number
  18. MKG-0756 — S1 , PDF p. 24 — Liners and liner packing; source row 7''; Mud King supplier catalogue number
  19. MKG-0732 — S1 , PDF p. 24 — Gaskets; Mud King supplier catalogue number
  20. MK-U5B-EH — S1 , PDF p. 24 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  21. MK-6ADD-B6 — S1 , PDF p. 24 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  22. MK-5710-111 — S1 , PDF p. 24 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  23. MK-UDD-6AB — S1 , PDF p. 24 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  24. MK-1700-6 — S1 , PDF p. 24 — Valve family MKP-4 WEB; Mud King supplier catalogue number
  25. MK-U5B-EHHT — S1 , PDF p. 24 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  26. MK-6ADD-B6 — S1 , PDF p. 24 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  27. MK-5710-111 — S1 , PDF p. 24 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  28. MK-UDD-6ABHT — S1 , PDF p. 24 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  29. MK-1700-6 — S1 , PDF p. 24 — Valve family MKP-4 WEB HIGH TEMP; Mud King supplier catalogue number
  30. MK-6FO-V1 — S1 , PDF p. 24 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  31. MK-6FO-S1 — S1 , PDF p. 24 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  32. MK-5710-115 — S1 , PDF p. 24 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  33. MK-6FO-SI — S1 , PDF p. 24 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  34. MK-1700-6FO — S1 , PDF p. 24 — Valve family MKP-FULL OPEN; Mud King supplier catalogue number
  35. MK-1560995 — S1 , PDF p. 24 — Valve family MKP-G2; Mud King supplier catalogue number
  36. MK-1561380 — S1 , PDF p. 24 — Valve family MKP-G2; Mud King supplier catalogue number
  37. MK-1560701 — S1 , PDF p. 24 — Valve family MKP-G2; Mud King supplier catalogue number
  38. MK-1560587 — S1 , PDF p. 24 — Valve family MKP-G2; Mud King supplier catalogue number
  39. MK-1700-6G2 — S1 , PDF p. 24 — Valve family MKP-G2; Mud King supplier catalogue number
  40. MK-RN6-V1 — S1 , PDF p. 24 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  41. MK-RN6-S6 — S1 , PDF p. 24 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  42. MK-5710-111 — S1 , PDF p. 24 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  43. MK-RN6-I — S1 , PDF p. 24 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  44. MK-1700-6FO — S1 , PDF p. 24 — Valve family MKP-ROUGHNECK; Mud King supplier catalogue number
  45. MK-RT-400 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 4''; Mud King supplier catalogue number
  46. MK-I40HK14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 4''; Mud King supplier catalogue number
  47. MK-I40HK — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 4''; Mud King supplier catalogue number
  48. MK-RB-400 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 4''; Mud King supplier catalogue number
  49. MK-LL-400 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 4''; Mud King supplier catalogue number
  50. MK-RT-440 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 4½''; Mud King supplier catalogue number
  51. MK-I44HK14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 4½''; Mud King supplier catalogue number
  52. MK-I44HK — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 4½''; Mud King supplier catalogue number
  53. MK-RB-440 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 4½''; Mud King supplier catalogue number
  54. MK-LL-440 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 4½''; Mud King supplier catalogue number
  55. MK-RT-500 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 5''; Mud King supplier catalogue number
  56. MK-I50HB14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 5''; Mud King supplier catalogue number
  57. MK-I50HB — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 5''; Mud King supplier catalogue number
  58. MK-RB-500 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 5''; Mud King supplier catalogue number
  59. MK-LL-500 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 5''; Mud King supplier catalogue number
  60. MK-RT-540 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 5½''; Mud King supplier catalogue number
  61. MK-I54HB14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 5½''; Mud King supplier catalogue number
  62. MK-I54HB — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 5½''; Mud King supplier catalogue number
  63. MK-RB-540 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 5½''; Mud King supplier catalogue number
  64. MK-LL-540 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 5½''; Mud King supplier catalogue number
  65. MK-RT-600 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 6''; Mud King supplier catalogue number
  66. MK-I60HB14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 6''; Mud King supplier catalogue number
  67. MK-I60HB — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 6''; Mud King supplier catalogue number
  68. MK-RB-600 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 6''; Mud King supplier catalogue number
  69. MK-LL-600 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 6''; Mud King supplier catalogue number
  70. MK-RT-640 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 6½''; Mud King supplier catalogue number
  71. MK-I64HL14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 6½''; Mud King supplier catalogue number
  72. MK-I64HL — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 6½''; Mud King supplier catalogue number
  73. MK-RB-640 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 6½''; Mud King supplier catalogue number
  74. MK-LL-640 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 6½''; Mud King supplier catalogue number
  75. MK-RT-700 — S1 , PDF p. 24 — Piston family Red Thunder Bonded Pistons; size 7''; Mud King supplier catalogue number
  76. MK-I70HL14/15 — S1 , PDF p. 24 — Piston family Imperial Piston; size 7''; Mud King supplier catalogue number
  77. MK-I70HL — S1 , PDF p. 24 — Piston family Imperial Rubber Kits; size 7''; Mud King supplier catalogue number
  78. MK-RB-700 — S1 , PDF p. 24 — Piston family Rubber Bonded; size 7''; Mud King supplier catalogue number
  79. MK-LL-700 — S1 , PDF p. 24 — Piston family Long Life (Urethane); size 7''; Mud King supplier catalogue number
  80. MK-0283-C — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  81. MK-0283-B — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  82. MK-0283-D — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  83. MK-16-0282 — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  84. MK-24-0284 — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  85. MK-7403364 — S1 , PDF p. 24 — Rod arrangement PART NO.; Mud King supplier catalogue number
  86. MK-10-304-052 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 1; catalogue quantity (3) per pump (not quotation quantity); Mud King supplier catalogue number
  87. MK-45-810-063 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 3; catalogue quantity 12 per pump (not quotation quantity); Mud King supplier catalogue number
  88. MK-16-700-025 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 4; catalogue quantity 12 per pump (not quotation quantity); Mud King supplier catalogue number
  89. MK-45-810-020 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 5; catalogue quantity 12 per pump (not quotation quantity); Mud King supplier catalogue number
  90. MK-10-200-004 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 6; catalogue quantity 12 per pump (not quotation quantity); Mud King supplier catalogue number
  91. MK-10-305-110 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 7; catalogue quantity 6 per pump (not quotation quantity); source footnote: offered in plain carbon or stainless steel; installed material must be confirmed; Mud King supplier catalogue number
  92. MK-20-100-014 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 8; catalogue quantity 6 per pump (not quotation quantity); Mud King supplier catalogue number
  93. MK-75-632-135 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 9; catalogue quantity 24 per pump (not quotation quantity); Mud King supplier catalogue number
  94. MK-20-200-004 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 10; catalogue quantity 6 per pump (not quotation quantity); Mud King supplier catalogue number
  95. MK-10-304-054 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 11; catalogue quantity 6 per pump (not quotation quantity); Mud King supplier catalogue number
  96. MK-10-268-004 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 12; catalogue quantity 6 per pump (not quotation quantity); Mud King supplier catalogue number
  97. MK-10-305-097 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 13; catalogue quantity 6 per pump (not quotation quantity); Mud King supplier catalogue number
  98. MK-10-305-020 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 14; catalogue quantity 3 per pump (not quotation quantity); Mud King supplier catalogue number
  99. MK-10-305-037 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 15; catalogue quantity 3 per pump (not quotation quantity); Mud King supplier catalogue number
  100. MK-10-305-103 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 16; catalogue quantity 3 per pump (not quotation quantity); Mud King supplier catalogue number
  101. MK-08-568-023 — S1 , PDF p. 64 — Fluid-end module; catalogue joint header: Oilwell A-600-PT; item 17; catalogue quantity 3 per pump (not quotation quantity); Mud King supplier catalogue number

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