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China Suppliers Factory Direct Replacement API 7K Mud Pump Piston Rod for High Pressure Pumping 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 ~ 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 us for more details about the piston rod 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)
❓Are your piston rods certified to API 7K standards?
Yes. All piston rods manufactured by MTPM are produced strictly in compliance with API 7K certification requirements. The entire production process — including raw material selection, machining, heat treatment, and final inspection — follows original factory standards to ensure full conformance.
❓Are your piston rods interchangeable with OEM parts from BOMCO, LS, and Honghua?
Yes. Our piston rods are manufactured in full accordance with original OEM drawings, ensuring dimensional interchangeability and equivalent mechanical performance. They are compatible with pump models from BOMCO, LS, Honghua, EMSCO, RONGSHENG, LSNOV, and other major brands without modification.
❓What is the expected service life of your piston rods?
Under typical drilling conditions, our piston rods deliver a service life of 150 to 350 hours or more per rod. The overall design life is approximately 12,000 to 18,000 hours (equivalent to 2–3 years), aligned with the replacement cycle of the piston assembly. Actual service life depends on insert materials and specific drilling conditions.
❓What material is used in the manufacturing of your piston rods?
Our piston rods are manufactured from 42CrMo alloy steel, which is equivalent to AISI 4140. This material provides excellent strength, toughness, and fatigue resistance, making it well-suited for the high-pressure demands of drilling mud pump applications.
❓Is third-party inspection and certification available for your products?
Yes. Third-party witness inspection and official reports are available upon request. We work with internationally recognized inspection bodies including Bureau Veritas (BV), CCS, ABS, and SJS, providing full traceability and documentation for quality assurance purposes.
❓Can you supply piston rods for both metric and imperial size mud pump configurations?
Yes. We manufacture piston rods in both metric and imperial sizes to cover a wide range of mud pump models used in domestic and international drilling operations. Please refer to our compatible part number table above, or contact our sales team with your specific pump model and part number for a precise match.