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China Suppliers Factory API 7K Mud Pump Piston Rod for High-Pressure Drilling Systems
Product Specifications
| Application | Drilling mud pump fluid end |
| Working Pressures | 5000 PSI (35 MPa) | 7500 PSI (51.7 MPa) |
| 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 / Design Life | 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 Inspection | 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. 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 is used for HONGHUA, RG, RONGSHENG, EMSCO, and 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.
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.
Frequently Asked Questions (FAQ)
Q
Are your piston rods certified to API 7K standards?
Yes. All piston rods supplied by MTPM are manufactured and inspected in strict accordance with API 7K certification requirements. The entire production process — including raw material selection, machining, heat treatment, and final quality inspection — follows original factory standards to ensure full compliance.
Q
What mud pump brands and models are your piston rods compatible with?
Our piston rods are compatible with a wide range of mud pump models, including BOMCO (F350, F500, F800, F1000, F1300, F1600, F2200HL), RONGSHENG (F1000), EMSCO (FB1300/FB1600), HONGHUA (F1300/F1600), LS (3NB1300C/1600C), and LSNOV (10P130, 12P160). We cover nearly all major domestic and international mud pump models.
Q
What is the expected service life of your piston rods?
The service life typically ranges from 150 to 350 hours or more, depending on the insert materials used and the specific drilling conditions. The rods are designed for an overall operational life of approximately 12,000 to 18,000 hours (equivalent to 2–3 years under typical drilling conditions), aligned with the replacement cycle of the piston assembly.
Q
What material is used in the manufacture of your piston rods?
Our piston rods are made from 42CrMo alloy steel, which is equivalent to AISI 4140. This material offers excellent strength, toughness, and fatigue resistance, making it well-suited for high-pressure drilling applications operating between -29°C and 120°C.
Q
Can third-party inspection reports be provided?
Yes. Third-party witness and inspection reports are available from internationally recognized certification bodies including Bureau Veritas (BV), CCS, ABS, and SJS, among others. These reports provide independent verification of product quality and compliance.
Q
How can I confirm the correct part number for my mud pump model?
You can refer to the OEM compatibility table above for a full list of supported part numbers in both metric and imperial sizes. If your specific pump model or part number is not listed, please contact our sales team directly — we provide detailed references and technical support for HONGHUA, RG, RONGSHENG, EMSCO, LSNOV, and other brands upon request.