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API 7K Mud Pump Piston Rod
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API mud pump piston rod.jpg

API 7K Mud Pump Piston Rod

MTPM piston rod is one of the most critical components in our mud pump, responsible for transmitting the reciprocating motion of the crosshead to the piston assembly. It operates under high loads and in harsh drilling conditions, requiring precise dimensional accuracy, excellent surface hardness, and consistent mechanical strength. As a direct replacement part in high pressure pumping systems, the piston rod must withstand continuous cyclic stress,ensures long term reliability to minimize downtime on drilling rigs.

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    product details

    Product Specifications

    Application

     Drilling mud pump fluid end

    Working pressures

     5000 PSI(35MPa),7500PSI(51.7MPa)

    Temperature rating

     -29°C to 120°C

    Material

     42CrMo(equivalent to AISI 4140)

    Service life

    150 hours ~ 350 hours or more,depending on the insert materials and  drilling conditions

    Standard

     Conforms to API 7K standards

    Applicable Fluids

     Designed to operate for approximately 12,000~18,000 hours, equivalent to 2~3 years under typical drilling conditions, and aligned with the replacement cycle of the piston assembly.

    Third party witness and inspection report available

     Bureau Veritas (BV), CCS, ABS, SJS etc.

    Product Features

    •As a direct source manufacturer in China, MTPM delivers piston rods produced strictly under API 7K certification. Every step of the production process, from raw material selection to machining, heat treatment, and final inspection, is carried out in accordance with original factory standards.
    •We guarantee dimensional interchangeability and mechanical performance equivalent to OEM components.
    •Our proven track record as a qualified supplier to BOMCO, LS, and Honghua further validates the reliability of our products in demanding drilling environments. In addition, we provide manufacturing coverage for nearly all main mud pump models, both domestic and international, enabling clients to consolidate sourcing through a trusted partner.
    •With competitive lead times and controlled quality assurance, our piston rods offer a dependable solution for global drilling contractors, equipment suppliers, and spare parts distributors.

    Our piston rods are engineered for use across a full range of mud pump models applied in oil and gas drilling operations worldwide. They are fully interchangeable with OEM parts, allowing seamless integration into pumps from BOMCO, LS, Honghua, and other Chinese leading manufacturers. By meeting API 7K requirements, our products ensure compatibility with both domestic and international drilling equipment, supporting operators in onshore and offshore environments. Whether used in high pressure triplex pumps or large capacity pumps, the rods maintain dependable service life, contributing to stable mud circulation and extended pump operation cycles.

    OEM Equivalent / Compatible Product Part Numbers

    Our valve body is manufactured in full accordance with original drawings and are directly interchangeable with the following part numbers:

    OEM Brand

    Pump Models

    Compatible Part Numbers

    (Metric size)

    Compatible Part Numbers

    (Imperial size)

    BOMCO

    F350

    AH44002-05.03

    F500

    AH35001-05.18A

    AH0501010512

    AH35003-05.06

    AH0501020504

    F800

    AH34001-05.02A

    AH0801010502

    AH33001-05.21

    AH1001020502

    F1000

    AH33001-05.21A

    AH1001010516

    AH33001-05.21

    AH1001020502

    F1300/F1600

    AH36001-05.19A

    AH1301010516

    AH36002-05.05

    AH1301020504

    F1600L/F1600HL

    AH130101-0516

    F2200HL

    AH2202010507

    RONGSHENG

    F1000

    RS1036-05-017

    EMSCO

    FB1300/FB1600

    6316-0094-00

    HONGHUA

    F1300/F1600

    GH3161-05.18

    LS

    3NB1300C/1600C

    107.11.110.39

    LSNOV

    10P130

    1290347

    12P160

    1292147
    Contact for more details about the piston rod which used for HONGHUA,RG,RONGSHENG,EMSCO,LSNOV

    All product names, trademarks, and part numbers are used for identification purposes only and are the property of their respective owners. We are an authorized and recognized supplier,if you are looking for specific piston rod part numbers, please contact our sales team for detailed references or technical support.

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