Product Introduction

This curated selection of Cameron BOP spare parts covers all high-wear critical components for single and double ram BOP assemblies, including hydraulic seals, O-rings, packer elements, check valves, retainer rings, bonnet seals, and wear rings. All parts are manufactured to meet API 16A, NACE MR0175, and ASME BPVC Section VIII standards, with 100% hydrostatic pressure testing to withstand extreme wellbore pressures, abrasive drilling fluids, and H₂S-containing environments. Each part is traceable to its unique Cameron OEM part number, simplifying inventory management, emergency repairs, and routine BOP maintenance compliance.
Functional Performance Specifications
These BOP spares deliver industry-leading pressure control performance: all sealing components are rated for a maximum working pressure of 10,000 Psi (69 MPa) with zero leakage under dynamic pressure surges; VBR ram packers accommodate casing sizes from 2-7/8″ to 7″ for universal wellbore compatibility; lip seals and energizing rings maintain hydraulic system pressure for reliable ram actuation; and bonnet/connecting rod seals prevent fluid bypass in critical pressure containment zones. The parts support full open/close cycle functionality for both variable bore rams and bind shear rams, ensuring rapid well shutoff in emergency scenarios.
Structural & Material Features
- API 16A Certified Construction: Engineered to meet strict offshore and onshore well control equipment standards, with full material traceability and quality validation
- High-Performance Elastomers: Nitrile, Viton, and high-durability rubber compounds resist abrasion, chemical degradation, and H₂S exposure for extended service life
- Precision Machined Components: Metal retainers, wear rings, and fasteners feature tight dimensional tolerances (±0.002 inches) to eliminate fitment gaps
- Modular Seal Design: Pre-formed O-rings, lip seals, and packer elements reduce field repair time by up to 60% compared to custom fabricated seals
- Wear-Resistant Coatings: Critical metal components feature corrosion-resistant finishes to withstand harsh drilling mud and saltwater environments
Applicable Operating Conditions
These Cameron BOP spare parts are built for extreme onshore and offshore drilling environments, optimized for deep well drilling, HPHT (high-pressure high-temperature) wells, and sour gas (H₂S) operations. They perform reliably in ambient temperatures ranging from -20°F to 180°F, high-abrasion drilling mud conditions, and continuous hydraulic cycling. Components are fully compatible with BX159 flange connections and standard Cameron hydraulic control systems for both single and double ram BOP installations.
Maintenance & Service Recommendations
- Inspect all BOP seals, packers, and O-rings every 90 days or post-well shutoff to check for wear, cracking, or compression set
- Replace hydraulic cylinder seals and wear rings every 12 months to maintain consistent ram actuation pressure
- Lubricate check valves and retainer rings during routine maintenance to prevent seizing and ensure smooth operation
- Conduct full pressure testing of the BOP assembly post-seal replacement to verify 10,000 Psi pressure integrity
- Stock critical wear parts (packers, bonnet seals, O-rings) preventatively to minimize downtime during mandatory BOP inspections
We supply the following spare parts:
| Cameron 13.5/8″ – 10.000 Psi Single Ram BOP (Top & bottom flange / BX 159) | |||
| No | Item | Part Number | Uom |
| 1 | Check Valve, Plastic Packing | M517988 | Ea |
| 2 | Screw, Plastic Packing | 005940-09 | Ea |
| 3 | Pipe Plug, Plastic Packing | 005930-05-10 | Ea |
| 4 | Ring, Plastic Packing | 012469-24 | Ea |
| 5 | Ring, Plastic Energizing | 018586-01 | Ea |
| 6 | Seal ring, Connecting Rod | 212741-36-00-01 | Ea |
| 7 | Ring Backup | 021792-26 | Ea |
| 8 | Seal, Bonnet | 644197-03-00-01 | Ea |
| 9 | O Ring, Operating Cylinder | 702645-45-51 | Ea |
| 10 | O Ring, Operating Piston rod to Int Flg | 018492-90 | Ea |
| 11 | Lip Seal, Operating Piston | 710538 | Ea |
| 12 | Seal ring, tail rod | 212741-34-00-01 | Ea |
| 13 | O Ring, wiping | 702645-33-71 | Ea |
| 14 | O ring, Ram Change Piston to Body | 702645-32-81 | Ea |
| 15 | O ring, Ram Change Piston to Int Flg | 702645-33-31 | Ea |
| 16 | O ring, Ram Change Cylinder to Int Flg | 702645-34-61 | Ea |
| 17 | O ring, Ram Change Cylinder to Bonnet | 702645-42-51 | Ea |
| 18 | O ring, Ram Change Piston | 702645-33-81 | Ea |
| 19 | O ring, bonnet bolt retainer | 702645-23-21 | Ea |
| 20 | Washer | 689523-01 | Ea |
| 21 | Ring, Retainer | 018572-85 | Ea |
| 22 | Wear Ring, Operating Piston | 049223-01 | Ea |
| 23 | Top Seal (VBR Ram Block) | 644223-02-00-01 | Ea |
| 24 | Packer 7″ to 4 1/2″ (VBR Ram Block) | 644924-03 | Ea |
| Cameron 13.5/8″ – 10.000 Psi Double Ram BOP (Top & bottom flange / BX 159) | |||
| No | Item | Part Number | Uom |
| 1 | Check Valve, Plastic Packing | M517988 | Ea |
| 2 | Screw, Plastic Packing | 005940-09 | Ea |
| 3 | Pipe Plug, Plastic Packing | 005930-05-10 | Ea |
| 4 | Ring, Plastic Packing | 012469-24 | Ea |
| 5 | Ring, Plastic Energizing | 018586-01 | Ea |
| 6 | Seal ring, Connecting Rod | 212741-36-00-01 | Ea |
| 7 | Ring Backup | 021792-26 | Ea |
| 8 | Seal, Bonnet | 644197-03-00-01 | Ea |
| 9 | O Ring, Operating Cylinder | 702645-45-51 | Ea |
| 10 | O Ring, Operating Piston rod to Int Flg | 018492-90 | Ea |
| 11 | Lip Seal, Operating Piston | 710538 | Ea |
| 12 | Seal ring, tail rod | 212741-34-00-01 | Ea |
| 13 | O Ring, wiping | 702645-33-71 | Ea |
| 14 | O ring, Ram Change Piston to Body | 702645-32-81 | Ea |
| 15 | O ring, Ram Change Piston to Int Flg | 702645-33-31 | Ea |
| 16 | O ring, Ram Change Cylinder to Int Flg | 702645-34-61 | Ea |
| 17 | O ring, Ram Change Cylinder to Bonnet | 702645-42-51 | Ea |
| 18 | O ring, Ram Change Piston | 702645-33-81 | Ea |
| 19 | O ring, bonnet bolt retainer | 702645-23-21 | Ea |
| 20 | Washer | 689523-01 | Ea |
| 21 | Ring, Retainer | 018572-85 | Ea |
| 22 | Wear Ring, Operating Piston | 049223-01 | Ea |
| 23 | Top Seal VBR Ram | 644223-02-00-01 | Ea |
| 24 | Packer VBR 5″ to 2-7/8″ | 645089-02-00-01 | Ea |
| 25 | Blade Packer (Bind Shear Ram) | 644435-01-00-01 | Ea |
| 26 | Side Packer (Bind Shear Ram) | 046751-01-00-02 | Ea |
| 27 | Side Packer (Bind Shear Ram) | 046752-01-00-02 | Ea |
| 28 | Top Seal (Bind Shear Ram) | 644223-01-00-01 | Ea |
Field Failure Repair Case Studies
Case 1: Bonnet Seal Leak in Single Ram BOP
A Cameron 13-5/8″ single ram BOP experienced hydraulic fluid leakage from the bonnet seal during pressure testing, failing API compliance checks. Installing an OEM bonnet seal (644197-03-00-01) eliminated the leak, restored full 10,000 Psi pressure integrity, and allowed the BOP to pass mandatory safety certification.
Case 2: Worn VBR Ram Packer in Double Ram BOP
The VBR ram packer in a double ram BOP failed to seal around 5″ casing, causing wellbore pressure loss. Replacing the worn packer with a genuine Cameron VBR packer (645089-02-00-01) restored proper casing sealing and emergency shutoff capability.
Case 3: Hydraulic Piston Lip Seal Failure
A BOP operating piston experienced hydraulic bypass due to a degraded lip seal (710538), preventing full ram actuation. Swapping the faulty lip seal with an OEM replacement restored hydraulic pressure, ensuring rapid and reliable ram opening/closing cycles.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both single and double ram Cameron 13-5/8″ BOPs? | Yes, this parts kit includes properly sized components for both 10,000 Psi single ram and double ram BOP models with BX159 flanges. |
| What pressure rating do these BOP spare parts support? | All seals, packers, and structural components are rated for 10,000 Psi (69 MPa) maximum working pressure, compliant with API 16A standards. |
| Do these parts fit BX159 flange BOP configurations? | Absolutely, these OEM-grade spares are precision-designed for Cameron 13-5/8″ BOPs with BX159 top and bottom flange connections. |
Procurement Guidance
This Cameron single and double ram BOP spare parts list serves as both a formal procurement benchmark and a technical troubleshooting reference, designed to minimize costly well control downtime, reduce long-term maintenance expenses, and uphold the pressure integrity and safety of your BOP systems. Each part is a verified OEM-grade replacement that eliminates the risks of substandard aftermarket components, ensures compliance with API 16A well control regulations, and delivers consistent performance under the most extreme drilling conditions.