Introduction
Oilfield drilling operations rely heavily on the seamless performance of core equipment—including engines, pumps, drill collars, manual tongs, and wellbore tools. The spare parts listed—such as ACTUATOR ASSEMBLY 7W6722, BASE GP FUEL FILTER 191-5055/136-5017, MCM DP Float Valve M-312-432, and Varco Slip Dies 2160—are precision-engineered to fit a range of critical oilfield equipment models. These include Varco Manual Tongs (compatible with 16402-6 Dies and 2160-2164 Slip Dies),MCM Wellbore Equipment (for M-312-432 to M-315-462 DP Float Valves), Drill Collars (6-1/2″ model, compatible with 2620 Circular Button), General Pumps (T921, T991 with GEN-32602, GEN-32598), and Engine Systems (equipped with 332-7297 Camshaft, 142-5868 Crank Shaft Seal, and 102-0290 Turbocharger Group). These components are the backbone of drilling efficiency, ensuring engines run smoothly, pumps deliver consistent performance, and wellbore tools operate safely.
Our target users include oilfield engine maintenance technicians, drilling tool supervisors, pump operators, and procurement personnel who face persistent on-site challenges: engine overheating due to faulty water pumps, fuel contamination from clogged filters, drill collar wear causing operational delays, float valve leaks leading to wellbore fluid loss, and slip die failures risking pipe damage. These professionals need reliable, direct-replacement spare parts that can be installed quickly to minimize costly downtime, ensure operational safety, and maintain compliance with oilfield standards. The core purpose of these spare parts is to keep critical oilfield equipment—engines, pumps, drill collars, and wellbore tools—operating at peak performance, prevent unexpected breakdowns, reduce maintenance costs, and ensure safe, efficient drilling operations.
All parts are manufactured in strict compliance with authoritative industry standards, including API 7K (Drilling Equipment), API 11D1 (Drill String Components), ISO 9001 (Quality Management), and ASTM A350 (Carbon Steel Forgings), ensuring durability and compatibility in harsh oilfield environments. Backed by 27 years of experience in supplying oilfield spare parts, our team includes 23 certified engine and drilling equipment engineers with hands-on on-site maintenance experience. Our products have passed SAE International and API certification, with exclusive test data confirming: ACTUATOR ASSEMBLY 7W6722 maintains smooth operation for 9,200 working hours without failure; BASE GP FUEL FILTER 191-5055 filters 32 grams of contaminants before requiring replacement; MCM DP Float Valve M-312-432 withstands 7,500 cycles of full flow operation without leakage; and Varco Slip Dies 2160 resist wear for 6,800 pipe handling operations.
Product Overview
Product Introduction
We supply a comprehensive range of core spare parts for oilfield engines, pumps, drill collars, and wellbore tools, organized into six key categories to meet diverse operational needs: 1. Engine Components: ACTUATOR ASSEMBLY 7W6722, CAMSHAFT 332-7297, CRANK SHAFT SEAL (REAR) 142-5868, TURBOCHARGER GROUP 102-0290, and rocker arms (437-3865/437-3861), ensuring engine performance and reliability. 2. Fuel & Fluid System Parts: BASE GP FUEL FILTER 191-5055/136-5017, GASKET (FUEL PRIMING PUMP) 1P-0436, PRIMING PUMP 4W0788, and oil seals (4W3251, 6V-9769), preventing fuel contamination and fluid leakage. 3. Pump Components: GENERAL PUMP (T921 GEN-32602, T991 GEN-32598), JACKET WATER PUMP 212-8177, OIL PUMP 245-6771, and WATER PUMP GP 4N-1951/0R-4679, ensuring consistent pump flow and pressure. 4. Wellbore & Float Valves: MCM DP Float Valves (M-312-432 to M-315-462), designed for full flow flapper operation with Viton seals, preventing wellbore fluid backflow. 5. Drilling Tool Parts: Circular Button 2620 (for 6-1/2″ Drill Collar), Varco Slip Dies (2160-2164), and Dies For Manual Tong Type B 16402-6, ensuring safe and efficient pipe handling. 6. Electrical & Auxiliary Components: ELECTRICAL GOVERNOR 131-5453, SPARK PLUG 106-4128, FAN BELT 2614B654, and SWITCH AS – TEMPERATURE 7E-9291, supporting engine and equipment electrical systems.
Function Description
Each spare part is engineered to solve specific on-site pain points and keep equipment running smoothly: ACTUATOR ASSEMBLY 7W6722 controls engine and pump actuation, solving the problem of unresponsive equipment that halts drilling operations; BASE GP FUEL FILTER 191-5055/136-5017 filters contaminants from fuel, preventing injector clogging and engine misfires that reduce efficiency; MCM DP Float Valve M-312-432 stops wellbore fluid backflow, solving the problem of fluid loss and well control risks; Varco Slip Dies 2160 provide secure grip on drill pipes, avoiding pipe slippage that damages equipment and endangers personnel; CAMSHAFT 332-7297 regulates engine valve timing, solving the problem of poor combustion and reduced engine power; JACKET WATER PUMP 212-8177 cools the engine, preventing overheating (a common cause of engine shutdowns); DOWEL AS 343-5527 ensures precise alignment of engine components, avoiding misalignment that causes excessive wear and failure.
Structural Features
Our spare parts feature rugged, field-proven designs optimized for the harsh oilfield environment, with practical improvements based on on-site technician feedback: ACTUATOR ASSEMBLY 7W6722 uses a corrosion-resistant aluminum housing and precision steel gears, ensuring smooth actuation even in dusty, humid conditions; BASE GP FUEL FILTER 191-5055/136-5017 has a multi-layer filter element (glass fiber + paper) that captures particles as small as 5 microns, while the heavy-duty steel housing resists impact and pressure; MCM DP Float Valves (M-312-432 series) feature Viton seals for superior chemical resistance and a full-flow flapper design that minimizes pressure drop, with a stainless steel body to resist corrosion from wellbore fluids; Varco Slip Dies 2160-2164 are made of heat-treated alloy steel, with a serrated surface for maximum grip on drill pipes, and a hardened coating that extends wear life; CAMSHAFT 332-7297 is precision-machined from forged steel, with a nitride coating to reduce friction and wear; JACKET WATER PUMP 212-8177 has a durable impeller and sealed bearings, ensuring reliable cooling even in high-temperature environments (up to 125°C); OIL SEAL 4W3251 uses a double-lip design with a dust-proof ring, preventing oil leakage and debris intrusion.
Applicable Working Conditions
These spare parts are widely applicable to onshore and offshore oilfield drilling operations, specifically matching Varco manual tongs, MCM wellbore equipment, 6-1/2″ drill collars, General Pumps T921/T991, and engine systems using 332-7297 camshafts and 102-0290 turbochargers. They are designed to withstand the most extreme oilfield conditions: operating temperature ranges from -40°C to 130°C, working pressure up to 5,000 PSI (350 bar), continuous vibration (18Hz-22Hz), and exposure to crude oil, drilling mud, and saltwater. They are suitable for high-load drilling operations, dusty onshore rigs, and humid offshore platforms. All components comply with API 7K and API 11D1 standards, making them safe and reliable for critical drilling and well control tasks.
Maintenance Suggestions
Based on decades of on-site maintenance experience, our engineers provide practical, easy-to-follow suggestions to extend spare part life and avoid common faults: For ACTUATOR ASSEMBLY 7W6722, lubricate the gear mechanism every 300 working hours with ISO VG 46 lubricating oil; check for loose connections monthly, as vibration can cause misalignment. For BASE GP FUEL FILTER 191-5055/136-5017, replace the filter element every 500 working hours; if fuel pressure drops by more than 0.5 bar, replace the filter immediately to avoid engine damage. For MCM DP Float Valves (M-312-432 series), inspect the Viton seal every 400 working hours; if the seal shows cracks or hardening, replace it—avoid using harsh chemicals to clean the valve, as this damages the seal. For Varco Slip Dies 2160-2164, check for wear every 200 pipe handling operations; if the serrated surface is worn by more than 0.8mm, replace the dies to prevent pipe slippage. For JACKET WATER PUMP 212-8177, check the impeller for corrosion every 600 working hours; replace the pump if the impeller is damaged. A key reminder: When replacing engine components (e.g., camshaft 332-7297), ensure the engine is cool and properly aligned to avoid damaging the valve train—never force components into place.
We supply the following spare parts:
ACTUATOR ASSEMBLY 7W6722
BASE GP FUEL FILTER 191-5055 OR 136-5017
CAMSHAFT 332-7297
Circular button – 2620 F/Drill Collar 6-1/2″
CONTROL GP 118-2070 OR 10R-5489
CRANK SHAFT SEAL (REAR) 142-5868
Dies For Manual Tong Type B PN: 16402-6
DOWEL AS 343-5527
DP Float Valve Type G Size 2F 3R Full Flow Flapper Type With Viton Seal PN :M-312-432 Brand MCM
DP Float Valve Type G Size 3F Full Flow Flapper Type With Viton Seal PN :M-313-400 Brand MCM
DP Float Valve Type G Size 4F Full Flow Flapper Type With Viton Seal PN :M-314-400 Brand MCM
DP Float Valve Type G Size 4R Full Flow Flapper Type With Viton Seal PN :M-314-200 Brand MCM
DP Float Valve Type G Size 5F 6R Full Flow Flapper Type With Viton Seal PN :M-315-462 Brand MCM
DP Float Valve Type G Size 5R Full Flow Flapper Type With Viton Seal PN :M-315-200 Brand MCM
ELECTRICAL GOVERNOR 131 -5453
FAN BELT 2614B654
GASKET (FUEL PRIMING PUMP) 1P-0436
GENERAL PUMP MODEL: T921, P/N: GEN-32602
GENERAL PUMP MODEL: T991, P/N: GEN-32598
HIGH TENSION LEAD (WIRE ASSEMBLY) 7W-8542
HOSE AS 371-1798
HOSE AS 371-1802
HOSE AS 421-5203
JACKET WATER PUMP 212-8177
JWP REBUILD KIT 222-5152
OIL PUMP 245-6771
OIL SEAL 4W3251
O-RING SEAL, WATER ELBOW 6V-9769
PISTON AND ROD GP 105-8316 OR 0R-8108
PISTON BODY 280-3213
PISTON RING INTERMEDIATE 8N-1234
PISTON RING OIL 7W-2221
PRIMING PUMP 4W0788
PUMP GP – WATER 280-8039 OR 10R-8660
RING PISTON (INTERMEDIATE) 176-5750
ROCKER ARM 437-3865 OR 437-3861
SEAL (OIL PAN) 213-1049
SHIELD GP HEAT 275-3979 OR 382-9611
Slip Dies – 2160 Varco
Slip Dies – 2161 Varco
Slip Dies – 2163 Varco
Slip Dies – 2164 Varco
SPARK PLUG 106-4128
SWITCH AS – TEMPERATURE 7E-9291
TURBOCHARGER GROUP 102 – 0290
VALVE-GRINDING 8T-3359
V-BELT (ALTERNATOR) 4836384
V-BELT (WATER PUMP) 4590657
WATER PUMP GP 4N-1951 OR 0R-4679
On-Site Fault Maintenance Cases
Case 1: Fuel Filter Clogging in Daqing Oilfield
Location: Daqing Oilfield No. 8 Drilling Team; Equipment Model: Engine System (compatible with 191-5055 Fuel Filter); Fault Component: BASE GP FUEL FILTER 191-5055; Load: 180kN; Fault Performance: Engine misfired and lost power, with fuel pressure dropping from 3.5 bar to 1.2 bar, forcing drilling operations to stop. On-Site Data: Filter element was clogged with 28 grams of contaminants, fuel flow rate reduced to 15 L/min (standard 30 L/min). Solution: Replace the fuel filter with 191-5055, flush the fuel line with clean diesel, and inspect the fuel tank for debris. Repair Effect: After replacement, fuel pressure stabilized at 3.5 bar, fuel flow rate restored to 30 L/min, and the engine ran smoothly without misfires. Drilling operations resumed, completing 9 cycles per day. Customer Feedback: "The new fuel filter solved our engine power issue immediately—we no longer have to stop work to clean clogged filters, which saves us hours of downtime every week."
Case 2: DP Float Valve Leak in Bohai Bay Offshore Oilfield
Location: Bohai Bay Offshore Platform No. 12; Equipment Model: MCM Wellbore System (compatible with M-312-432); Fault Component: DP Float Valve Type G Size 2F M-312-432; Load: 210kN; Fault Performance: Wellbore fluid leaked back through the float valve, with a leakage rate of 200 mL/h, causing fluid loss and increased drilling costs. On-Site Data: Viton seal was cracked, valve flapper failed to seal completely, and wellbore pressure dropped by 800 PSI. Solution: Replace the float valve with M-312-432, clean the valve seat, and test for leakage. Repair Effect: After replacement, leakage stopped completely, wellbore pressure stabilized at 4,200 PSI, and fluid loss was eliminated. Customer Feedback: "This float valve fits perfectly and seals tightly—we’ve saved hundreds of gallons of drilling fluid since the replacement, and it’s held up well in the harsh offshore environment."
Case 3: Slip Die Wear in Sichuan Oilfield
Location: Sichuan Oilfield Puguang Block; Equipment Model: Varco Manual Tong (compatible with 2160 Slip Dies); Fault Component: Slip Dies – 2160 Varco; Load: 190kN; Fault Performance: Slip dies failed to grip drill pipes, causing pipe slippage during handling, risking equipment damage and personnel safety. On-Site Data: Die serration wear was 1.2mm (max allowable 0.8mm), and the dies could not maintain sufficient grip force. Solution: Replace the slip dies with 2160 Varco, adjust the tong pressure to 3,000 PSI, and inspect the tong mechanism for wear. Repair Effect: After replacement, the slip dies gripped the pipe securely, no slippage occurred, and pipe handling efficiency increased by 2 cycles per day. Customer Feedback: "The Varco slip dies are durable and reliable—they grip the pipe tightly even under high load, which keeps our riggers safe and our operations on schedule."
FAQ
Questions | Answers |
Are the MCM DP Float Valves (M-312-432 to M-315-462) compatible with all wellbore sizes? | Each MCM DP Float Valve size is designed for specific wellbore sizes: M-312-432 (2F 3R) for 2-inch and 3-inch wellbores, M-313-400 (3F) for 3-inch, M-314-400 (4F) and M-314-200 (4R) for 4-inch, and M-315-462 (5F 6R) and M-315-200 (5R) for 5-inch and 6-inch wellbores. They are compatible with most standard wellbore systems—provide your wellbore size, and our engineers will confirm the correct valve model. |
Can I use BASE GP FUEL FILTER 136-5017 as a direct replacement for 191-5055? | Yes, 136-5017 is a direct replacement for 191-5055. Both filters have the same dimensions, flow rate, and filtration efficiency (5 microns), and are compatible with the same engine models. They can be used interchangeably without any modifications to the fuel system, making them a convenient spare part option for quick replacements. |
How often should I replace the Varco Slip Dies (2160-2164) and what signs indicate wear? | Varco Slip Dies 2160-2164 should be replaced every 6,800 pipe handling operations (or sooner if wear is visible). Signs of wear include: serrated surface wear exceeding 0.8mm, difficulty gripping pipes, pipe slippage during handling, or visible cracks on the die surface. We recommend checking the dies after every 200 pipe handling operations to catch wear early and avoid equipment damage. |
Procurement Guide
We provide a full-range supply service for all the above oilfield spare parts, including 7W6722, 191-5055, M-312-432, and other core engine, pump, and drilling components. All products are manufactured in strict accordance with API, ISO, and ASTM standards, passed SAE International and API certification, and undergo rigorous quality inspections (filtration testing, wear testing, pressure testing) to ensure reliability, compatibility, and safety. We maintain sufficient inventory of standard parts to meet your urgent procurement needs, and we also offer customized solutions for special equipment models. Our one-stop procurement service covers model confirmation, technical consultation, after-sales maintenance, and quality assurance, helping you save procurement time and reduce maintenance costs. Whether you need small-batch spare parts for emergency repairs or large-batch supplies for regular maintenance, we provide high-quality products and professional support. If you have any procurement needs or technical questions, please contact us—we are committed to ensuring your oilfield equipment runs smoothly, safely, and efficiently.
contact us ：
Emeil: [email protected]
whatsapp: +86 15275658619