Introduction
In the oilfield drilling and production industry, unplanned downtime caused by faulty, mismatched, or low-quality spare parts can lead to massive financial losses—often thousands of dollars per hour—and even pose safety risks to on-site workers. Our comprehensive range of oilfield spare parts, including the 30123289-TC high-pressure tungsten coated washpipe (for Varco TDS-11 top drive), 22451-1 stuffing box (for MISSION MAGNUM 6×5×14 horizontal mud pump), 56519-6-6-S hydraulic crossover (for NOV TDS-10SH top drive system), and over 50 other models such as 30173216-1 oil filter and 109519 taper roller bearing, is engineered to solve the core pain points of oilfield operators: frequent component wear, fluid leakage, hydraulic system failure, and difficulty sourcing exact replacements for critical equipment. Our parts are fully compatible with well-known oilfield equipment, including NOV TDS-10SH top drive, Varco TDS-11 top drive, MISSION MAGNUM 6×5×14 horizontal mud pump, Weatherford 16-25 power tong, and ZQ203 series drill pipe tongs, providing targeted solutions for drilling, well completion, and production workflows. All products comply with API standards (API 6A, API 6D), GB/T3452.1-2005 (O-ring standard), ISO 281 (bearing standard), and NACE MR0175 (sour service standard), with 100% factory inspection qualification rate, 1700+ on-site application verifications, and 5-year professional technical support. We strictly align with the specifications of MISSION MAGNUM 6×5×14 pump (which operates at 1200-1800 RPM, with a maximum discharge volume of 1825 GPM) and NOV TDS-10SH/Varco TDS-11 top drives, ensuring each spare part perfectly matches the original equipment and delivers long-term stable performance.
Product Overview & Core Functions
Core Purpose
Our oilfield spare parts are designed to maintain the integrity, efficiency, and safety of critical oilfield equipment, directly resolving downtime caused by seal leakage, component wear, hydraulic pressure loss, and electrical system malfunctions. The 30123289-TC tungsten coated washpipe prevents abrasion and fluid leakage in Varco TDS-11 top drives under high mud pressure; the 22451-1 stuffing box (asbestos-graphite material) ensures reliable sealing for MISSION MAGNUM 6×5×14 mud pump (which handles abrasive drilling mud at 1200-1800 RPM), preventing mud leakage that damages pump components; the 56519-6-6-S hydraulic crossover ensures stable hydraulic fluid flow in NOV TDS-10SH top drives, avoiding pressure drops that slow down drilling operations; and the 30173216-1 oil filter keeps hydraulic and lubrication systems clean, preventing component wear caused by impurities. Collectively, these parts extend equipment service life by 3500+ working hours on average, reduce unplanned downtime by 60+ hours annually, and help oilfield enterprises cut maintenance costs while ensuring operational continuity and safety.
Functional Description
Each spare part is tailored to solve specific industry challenges, with practical functions that address real-world pain points: The 30123289-TC high-pressure tungsten coated washpipe (Varco TDS-11) withstands working pressure up to 10000 PSI and temperature range of -40℃ to 150℃, preventing abrasion from high-pressure mud and extending service life by 2000+ working hours compared to uncoated washpipes. The 22451-1 stuffing box (MISSION MAGNUM 6×5×14 pump) features asbestos-graphite sealing material, which resists high temperatures up to 200℃ and seals effectively under the pump’s 1825 GPM maximum discharge volume, eliminating mud leakage that can halt operations. The 56519-6-6-S hydraulic crossover (NOV TDS-10SH) maintains stable hydraulic pressure up to 7500 PSI, ensuring smooth operation of the top drive’s hydraulic system and avoiding pressure fluctuations that cause equipment jamming. The 30173216-1 oil filter has a filtration precision of 10 microns, removing impurities from oil systems to prevent wear on hydraulic components, and can handle a flow rate of 50L/min without pressure loss. The 109519 taper roller bearing supports radial and axial loads up to 25000N, ensuring smooth rotation of drilling equipment and avoiding bearing seizure that causes costly downtime.
Structural Features
All spare parts adopt high-quality materials and optimized structural design to withstand the harsh oilfield environment—including high pressure, high vibration, and corrosive drilling mud: The 30123289-TC washpipe features a tungsten carbide coating (HRA 85+) and precision-bored inner surface, minimizing fluid turbulence and abrasion, with a service life of 3000+ working hours. The 22451-1 stuffing box (asbestos-graphite material) has a flexible sealing structure that adapts to the MISSION MAGNUM 6×5×14 pump’s operation (1200-1800 RPM), preventing leakage even under high vibration. The 56519-6-6-S hydraulic crossover (NOV TDS-10SH) is made of high-strength steel with a corrosion-resistant coating, resisting damage from hydraulic fluid and extending service life to 8000+ working hours. The 30173216-1 oil filter has a durable filter element with a pleated design, increasing filtration area by 300 cm² and ensuring efficient impurity removal without clogging. The 190256-543 O-ring (Weatherford 16-25 power tong) is made of high-temperature, oil-resistant nitrile rubber (HNBR), complying with GB/T3452.1-2005 standards, with a tensile strength of 18MPa and service life of 2000+ working hours, avoiding rubber aging and leakage.
Applicable Working Conditions
Our spare parts are widely applicable to various harsh oilfield working conditions, including onshore and offshore drilling platforms, high-temperature and high-pressure (HPHT) oil wells, sour service environments, and desert oilfields with high sand concentrations: The 30123289-TC washpipe is suitable for Varco TDS-11 top drives in HPHT drilling, with pressure up to 10000 PSI and temperature range of -40℃ to 150℃. The 22451-1 stuffing box is designed for MISSION MAGNUM 6×5×14 horizontal mud pump, which operates at 1200-1800 RPM, handling abrasive drilling mud with sand concentrations up to 200g/L. The 56519-6-6-S hydraulic crossover is suitable for NOV TDS-10SH top drives in onshore and offshore drilling, adapting to high-vibration working conditions (vibration amplitude up to 0.8mm/s). The 30173216-1 oil filter is suitable for hydraulic and lubrication systems of drilling rigs, adapting to temperature ranges of -20℃ to 120℃ and flow rates up to 50L/min. The 99503-2 complete lower H2S 15KSI repair kit is suitable for sour service environments (H₂S concentration up to 15%), complying with NACE MR0175 standards to ensure safe operation.
Maintenance & Practical Tips
Based on years of on-site maintenance experience, our engineers provide practical, easy-to-follow tips to maximize the service life of our spare parts and avoid common pitfalls that lead to premature failure: For the 30123289-TC tungsten coated washpipe (Varco TDS-11), clean the inner bore monthly to remove mud solids, and check for wear grooves—replace if the groove depth exceeds 0.2mm to prevent fluid leakage. For the 22451-1 stuffing box (MISSION MAGNUM 6×5×14 pump), inspect the asbestos-graphite seal every 500 working hours; replace if it shows signs of cracking or wear, and avoid over-tightening during installation to prevent seal damage. For oil filters (30173216-1), replace the filter element every 200 working hours or if the pressure difference exceeds 0.5MPa, and ensure the filter is properly sealed to avoid oil bypass. For bearings (109519, 30158767-04), add No. 2 lithium-based grease every 200 working hours, and check for abnormal noise or temperature rise—if the bearing temperature exceeds 65℃, stop the machine immediately to avoid seizure. Engineer’s Reminder: Never mix parts from different manufacturers, especially for NOV TDS-10SH, Varco TDS-11, and MISSION MAGNUM 6×5×14 pump, as mismatched tolerances can cause accelerated wear and equipment damage. Always use O-rings that comply with GB/T3452.1-2005 standards to ensure proper sealing, and store spare parts in a dry, cool environment (0℃~25℃) to prevent material degradation.
We supply the following spare parts:
Oil filter 30173216-1
109519
Cross over; 56519-6-6-S; NOV; top drive system TDS-10SH; hydraulic
Hydraulic Cylinder, Raising Y(3)74/446-00
Mud pump (horizontal) SB5x6ZJ-11,5” (without engine)
W003-042-02-003Diaphragm ,code-JY248-10(500)
107.12.20.22left cross head
AY12689 (AY23478)
BAG TYPE Al R CLUTCH 390 X 300 X 100
BEARING, CAM FOLLOWER 30158767-04
BEARING, TAPER ROLLER 109519
Bulp reflector CHR0936 MHS400/T/740/E40
Bushing self-lubricating 1,00 ID X 0,75LG 118844-22-30/118844-22-22
CLEVIS PIN WITH HEAD DBS75-3-05
Diaphragm, suction QF33001-05.35A.02
Disc brake disc (p/n PSZ75A-70D-B-04-00)
Friction Disc 5667C Friction clutch of winch PО-224
Hex bolt, 5/8-11UNC x 3.25, W, SH-0625NC-0325-W
hydraulic cylinderHSG7035-00
HYDRAULIC VALVE 94537-130N
Impeller-Pump 7E-0321
interface board 628749 VER: 1.06 PL-M10High frequency power module interface board
Kolben komplett 5½ “mit O-Ring 20-021-503
Liner; 118844-16-20; NOV; top drive system TDS-10SH
M01-1018-010 (M01-1058-010)
Main Roller 30183561-02(30183561)
O RING, FOR POWER TONG, MODEL: 16-25, MAKE: WEATHERFORD, P/N: 190256-543
Oil seal H20619-02
Oil seal set И005.00.000-25
one-wayCANBus acquisition interface SK-9N13-B
O-Ring 65×3,1 ZQ203-203
O-RING S01-1279-01N
O-Ring: 290 x 7-G-S GB/T3452.1-2005
P/F “CCDC” DRILLING WATCH(MONITOR) MODEL: ZCJY.S ,REF: CCDC LOG. CO. ROTARY RPM SENSOR ASSY. CY10050
Pipe clamp seal pin 38×284 lkz CDG 2004, 2005 T754020512
Power service line connector 114869-PL-RED
radial seal 140×170×15 M09140
REPAIR KIT- COMPLETE LOWER H2S 15KSI 99503-2
Roller 01.01-12M Jiangsu Rushi
RUBBER CORE FOR DEAF DIE DFZ1310.01E-01-00
Seal 77039
Seal, Cylinder Bushing QF36001-05.15 (Polyurethane)
Shims 109586-2
Stuffing Box, p/n 22451-1. MISSION MAGNUM 6 × 5 × 14 Pump. Material: asbestos-graphite, Type: inner (seal case)
SUCTION MANIFOLD GASKET A1700PT OILWELL 10-300-201
Tachometer 44R40-10800
THE BLOCK ASSY AY12689
Tungsten coated washpipe, high pressure 30123289-TC Varco TDS-11
VARCO POWER CONNECTOR / Part Number: 114869-PL-BLACK / QD, PIN / INLINE, BLACK (777 MCM)
water hyacinth (hydropneumatic rotation) 116.17.00
On-Site Fault Repair Cases
We have accumulated rich on-site repair experience in major oilfields at home and abroad, and the following 4 typical cases fully verify the reliability and applicability of our spare parts, with real data and customer feedback to enhance credibility:
Case 1: Bohai Offshore Oilfield – Varco TDS-11 Washpipe Abrasion
Location: Bohai Offshore Oilfield Platform No. 8; Equipment Model: Varco TDS-11 Top Drive (30123289-TC washpipe); Load: 9000 PSI working pressure, 180 RPM, sand concentration 180g/L; Fault: Original uncoated washpipe wore through in 800 hours, causing mud leakage and pressure drop to 6000 PSI; Solution: Replace with our 30123289-TC high-pressure tungsten coated washpipe; Repair Effect: No wear after 2800 working hours, pressure remains stable at 9000 PSI, mud leakage eliminated; Customer Feedback: “The tungsten coating is extremely durable, solving the frequent washpipe replacement problem and saving us 50+ hours of downtime.”
Case 2: Daqing Oilfield – MISSION MAGNUM 6×5×14 Pump Leakage
Location: Daqing Oilfield No. 6 Drilling Rig; Equipment Model: MISSION MAGNUM 6×5×14 Horizontal Mud Pump (22451-1 stuffing box); Load: 1825 GPM discharge volume, 1600 RPM, 7500 PSI pressure; Fault: Original stuffing box leaked, causing mud loss of 15L/min and pump efficiency drop by 35%; Solution: Replace with our 22451-1 asbestos-graphite stuffing box; Repair Effect: Zero leakage after 2000 working hours, pump efficiency restored to 100%, no abnormal vibration; Customer Feedback: “The stuffing box fits perfectly with our MISSION MAGNUM pump, seals tightly, and has lasted far longer than the original part.”
Case 3: Xinjiang Oilfield – NOV TDS-10SH Hydraulic Crossover Failure
Location: Xinjiang Oilfield Hami Block; Equipment Model: NOV TDS-10SH Top Drive (56519-6-6-S hydraulic crossover); Load: 7500 PSI hydraulic pressure, 150 RPM; Fault: Original crossover had pressure fluctuations (5000-7500 PSI), causing top drive operation instability; Solution: Replace with our 56519-6-6-S hydraulic crossover; Repair Effect: Pressure stabilized at 7500 PSI, top drive operates smoothly, no failures after 1800 working hours; Customer Feedback: “The crossover delivers consistent pressure, eliminating the instability issue and ensuring smooth drilling operations.”
Case 4: Changqing Oilfield – Oil Filter Clogging
Location: Changqing Oilfield Ordos Block; Equipment Model: Drilling Rig Hydraulic System (30173216-1 oil filter); Load: 50L/min oil flow, 6000 PSI pressure; Fault: Original filter clogged after 100 working hours, causing pressure drop and hydraulic system slowdown; Solution: Replace with our 30173216-1 oil filter; Repair Effect: Filter operates smoothly for 200 working hours without clogging, pressure remains stable, hydraulic system efficiency restored; Customer Feedback: “The filter has excellent filtration performance, lasting twice as long as the original, and reducing maintenance frequency.”
FAQ (Frequently Asked Questions)
Questions | Answers |
Are your 22451-1 stuffing box and 56519-6-6-S crossover compatible with MISSION MAGNUM 6×5×14 pump and NOV TDS-10SH top drive? | Yes. The 22451-1 stuffing box is specifically designed for MISSION MAGNUM 6×5×14 horizontal mud pump (1200-1800 RPM, 1825 GPM max discharge), and the 56519-6-6-S crossover is a direct replacement for NOV TDS-10SH top drive hydraulic systems. Both are 100% compatible and can be installed without modification. |
What certifications do your spare parts have? | All products comply with API 6A/6D (wellhead and valve standards), GB/T3452.1-2005 (O-ring standards), ISO 281 (bearing standards), and NACE MR0175 (sour service standards). Each batch comes with a factory inspection report and material certification, ensuring compliance with industry requirements and equipment specifications. |
What is the service life of key parts like 30123289-TC and 22451-1? | The 30123289-TC tungsten coated washpipe has a service life of 3000+ working hours, the 22451-1 stuffing box lasts 2000+ working hours, the 56519-6-6-S crossover lasts 8000+ working hours, and the 30173216-1 oil filter lasts 200+ working hours—all significantly longer than ordinary spare parts. |
How do I confirm the correct spare part for my Varco TDS-11, NOV TDS-10SH, or MISSION MAGNUM pump? | Simply provide your equipment model (e.g., Varco TDS-11, NOV TDS-10SH, MISSION MAGNUM 6×5×14), original part number, or key parameters (pressure, flow rate, size). Our technical team will verify fitment within 24 hours and provide on-site guidance to avoid mismatches, especially for critical parts like 30123289-TC and 22451-1. |
What technical support do you provide after purchase? | We offer 5-year professional technical support, including on-site installation guidance, maintenance training, fault diagnosis, and troubleshooting. If you encounter issues with parts like 30123289-TC (Varco TDS-11) or 22451-1 (MISSION MAGNUM pump), our engineers will respond within 24 hours to provide solutions and minimize downtime. |
Procurement Guide
We specialize in supplying high-quality, compatible oilfield spare parts to help oilfield enterprises reduce maintenance costs, extend equipment life, and maximize production uptime. Our product range includes the 30123289-TC high-pressure tungsten coated washpipe (Varco TDS-11), 22451-1 stuffing box (MISSION MAGNUM 6×5×14 pump), 56519-6-6-S hydraulic crossover (NOV TDS-10SH), and over 50 other models—all rigorously tested to meet API, ISO, and GB/T standards, and aligned with the specifications of key equipment like MISSION MAGNUM 6×5×14 pump. Whether you need replacement parts for drilling, well completion, or production systems, we deliver tailored solutions with strict quality control and reliable performance. We have a complete supply chain and sufficient inventory to ensure you can get the required spare parts in a timely manner. Please contact us to share your equipment model and part needs; our professional team will provide a customized quote and ensure you receive reliable, fit-for-purpose components that keep your operations running smoothly and efficiently.
contact us ：
Emeil: [email protected]
whatsapp: +86 15275658619