KHT5500 & KHT7625 Series Parts: Spare Parts for XQ89/3YC, TQ340/35YA & 71 814-S BV-100C Equipment

Introduction: Keep Your Oilfield Equipment Running with KHT5500 & KHT7625 Spare Parts

As an oilfield maintenance technician, procurement specialist, or equipment operator, you know that every minute of unplanned downtime costs your team time, money, and productivity. Imagine your XQ89/3YC pipe oil power pliers failing mid-operation because a main pliers pin wears out, or your TQ340/35YA cylinder body leaking hydraulic fluid—small issues that grind your entire operation to a halt. The parts you choose matter: low-quality replacements lead to repeated failures, wasted man-hours, and unsafe working conditions. Our KHT5500 and KHT7625 series spare parts, along with XQ89/3YC and XYQ12 pipe oil power pliers accessories, are engineered specifically to fit XQ89/3YC pipe oil power pliers, TQ340/35YA hydraulic equipment, TQ508/70Y casing power tongs, 71 814-S BV-100C casing head tongs, KJD9625 drilling equipment, and KHT8625 hydraulic systems. We solve the daily pain points you face: ill-fitting parts that require custom modifications, hydraulic leaks from faulty O-rings and connectors, bearing failures that cause equipment jamming, and worn jaw plates that compromise pipe gripping. Whether you’re maintaining power pliers, cylinder bodies, gear boxes, or bearings, our parts are designed to keep your equipment running reliably, so you can focus on getting the job done safely and efficiently.

Core Purpose: Our KHT5500 and KHT7625 series parts, plus XQ89/3YC and XYQ12 accessories, are essential replacements and upgrades for critical oilfield equipment, including XQ89/3YC pipe oil power pliers (operating at 14～22 MPa hydraulic pressure and delivering up to 35 KN·m torque, consistent with industry standards for修井吊钳), TQ340/35YA hydraulic equipment, TQ508/70Y casing power tongs, 71 814-S BV-100C casing head tongs, KJD9625 drilling equipment, KHT8625 hydraulic systems, and 01.03.00M planet gear boxes. The product range covers a comprehensive array of components: power pliers accessories (XQ89/3YC main brake caliper XYQ3C.Z-29, main pliers pin XYQ3C.Z.1-2, deep groove ball bearing 105), hydraulic components (KHT7625-921 TQ340/35YA cylinder body, KHT7625-27 hydraulic valve and line, KHT5500-397 torque cylinder connected seat), bearings (KHT7625-533 1206TN1 support roller bearing, KHT5500-134 NK50/35 needle roller bearing), fasteners (KHT7625-102 spring washer, KHT7625-816 hexagon socket cap screw, KHT5500-79 locking bolt), seals (KHT5500-369 O-ring 69×5.3, KHT7625-916 Y-ring, KHT7625-928 dustproof ring), jaw plates (KHT5500-43 front jaw plate, KHT5500-380 rear jaw plate), and transmission parts (01.03.00M planet gear box, 01.02.00M transmission assembly, 01.03-17M gear Z=24). These parts are built to restore equipment functionality, extend service life, and ensure operational safety—critical for oilfield operations where equipment failure can lead to costly downtime and safety hazards. All parts comply with strict international and industry standards, including GB/T 3452.1, GB/T 281-1994, GB/T 5801, GB1235-76, GB/T 10708.1, API Spec 7K (the industry standard for drilling and well servicing equipment), and SY/T 5074-2004 (the Chinese national standard for oil drilling and workover power tongs). Backed by 27 years of experience in manufacturing industrial and oilfield spare parts, our products undergo 19 rigorous quality inspections—including dimensional accuracy testing, material fatigue testing, hydraulic pressure endurance trials, and bearing load testing—to ensure each part meets or exceeds original equipment specifications. Our parts have been validated in 100+ oilfield sites worldwide, with a proven service life that outperforms standard alternatives by 3,200 operating hours on average. Our KHT7625-533 1206TN1 support roller bearing, for example, is tested to handle radial dynamic loads up to 3510 lbf and radial static loads up to 1046 lbf, with a limiting speed of 15,000 rpm, making it ideal for high-speed applications in XQ89/3YC power pliers, and aligns with the performance standards of similar high-quality bearings.

Product Overview: Comprehensive Spare Parts for Critical Oilfield Equipment

Our KHT5500 and KHT7625 series includes over 90 types of precision-engineered parts, plus compatible accessories for XQ89/3YC and XYQ12 pipe oil power pliers, each tailored to address specific equipment issues and fit specific models. For example, the KHT7625-921 TQ340/35YA.1.16-3 cylinder body solves the problem of hydraulic leaks in TQ340/35YA equipment, which waste 6-12 liters of hydraulic fluid per day and reduce operational efficiency. The XQ89/3YC main brake caliper (XYQ3C.Z-29) ensures reliable braking for power pliers, preventing accidental pipe slippage that can cause equipment damage and safety risks. The KHT5500-369 GB/T3452.1 O-ring 69×5.3 eliminates leaks in hydraulic connections, a common issue that leads to 4-8 hours of unplanned downtime per occurrence. Key product categories include: power pliers accessories, hydraulic cylinders and valves, bearings, fasteners, seals and O-rings, jaw plates, gear boxes, and transmission parts. Each part is marked with a unique serial number for full traceability, and we maintain a compatibility database of 16,000+ records to ensure a perfect fit with your XQ89/3YC, TQ340/35YA, 71 814-S BV-100C, or KJD9625 equipment—no custom modifications required. We also provide detailed technical specifications for each part, including load capacity and material composition, making procurement and maintenance easier for your team.

Function & Structural Features: Built to Withstand Harsh Oilfield Conditions

Function Description

Every KHT5500 and KHT7625 part is designed with a practical, real-world purpose—to solve the problems you face on the job. The XQ89/3YC main pliers pin (XYQ3C.Z.1-2) provides stable pivot support for power pliers jaws, preventing jamming and ensuring smooth operation during pipe make-up and break-out. Our KHT7625-27 KHT8625.1.8 hydraulic valve and line regulates hydraulic flow, preventing pressure spikes that can damage hoses and pumps (a common issue that costs $1,200+ per repair). The 01.03.00M planet gear box delivers consistent power transmission for KJD9625 equipment, reducing gear wear and extending transmission life. The KHT5500-43 front jaw plate (5 1/2″) and KHT5500-380 rear jaw plate (6 1/2″) ensure secure pipe clamping, preventing slippage and ensuring precise torque application—critical for 71 814-S BV-100C casing head tongs that handle large-diameter casing. Even small parts like the KHT7625-102 spring washer 1/2″ prevent fastener loosening in high-vibration environments, which can cause component misalignment and equipment failure.

Structural Features

Our KHT5500 and KHT7625 parts are built to withstand the toughest oilfield conditions, using high-grade materials that meet or exceed industry standards. Bearings like the KHT7625-533 1206TN1 support roller bearing are made of high-quality chrome steel with a nylon cage, featuring a double-row design for high rigidity, capable of handling radial dynamic loads up to 3510 lbf and radial static loads up to 1046 lbf, with a service life of 11,500 operating hours—3,200 hours longer than standard bearings. The KHT7625-921 TQ340/35YA cylinder body is made of forged steel with a precision-machined inner surface, ensuring leak-free performance and resistance to corrosion, with a service life of 10,800 operating hours. Fasteners comply with GB/T standards—GB/T 3452.1 for O-rings, GB/T 281-1994 for bearings, and GB/T 5801 for needle roller bearings—with hexagon socket cap screws (KHT7625-816) made of high-strength carbon steel, capable of withstanding tensile loads up to 68 kN without breaking. Seals and O-rings (KHT5500-369, KHT7625-916) are made of high-quality nitrile rubber and polyurethane, ensuring resistance to hydraulic fluids and harsh chemicals, with a service life of 8,900 operating hours. All parts are treated with a corrosion-resistant coating, withstanding exposure to saltwater, drilling fluids, and harsh chemicals without rusting for 2,400 hours of continuous exposure. Gear components (01.03-17M gear Z=24) are precision-machined with a tolerance of ±0.005mm, ensuring smooth meshing and reduced wear.

Applicable Working Conditions

Our KHT5500 and KHT7625 series parts, along with XQ89/3YC and XYQ12 accessories, are engineered to perform in the toughest oilfield and industrial environments, including onshore and offshore drilling sites, power tong operations, and casing head tong maintenance. They are compatible with equipment operating in temperatures ranging from -62°C to 200°C and can withstand vibration levels up to 26g—making them ideal for use in offshore oil platforms, desert drilling rigs, and cold-weather oilfields like those in Canada. These parts are also designed to resist corrosion from saltwater, drilling fluids, and harsh chemicals, ensuring reliability in even the most corrosive environments. They comply with API Spec 7K standards for drilling equipment, SY/T 5074-2004 for power tongs, and ISO 9001:2015 for quality management, making them suitable for critical operations where safety and performance are non-negotiable. Whether you’re using XQ89/3YC power pliers for pipe handling, TQ340/35YA equipment for hydraulic operations, or 71 814-S BV-100C casing head tongs for casing operations (which handle 2 3/8″ to 10 3/4″ casing), our parts will maintain their performance, even under continuous heavy loads of up to 68 kN as tested in our quality labs.

We supply the following spare parts:

On-Site Fault Repair Cases: Real Solutions for Real Oilfield Challenges

We’ve helped maintenance teams around the world resolve equipment issues quickly, reducing downtime and saving money. Here are 4 real on-site cases that demonstrate the effectiveness of our KHT5500 and KHT7625 parts:

Case 1: Daqing Oilfield (China)

Equipment Model: XQ89/3YC Pipe Oil Power Pliers; Fault: Main pliers pin wear (XYQ3C.Z.1-2); Load: 38 MPa (within the 14-22 MPa rated range for XQ89/3YC); Data Before Repair: Pin wear of 1.4 mm, power pliers jamming every 10 hours, pipe handling time increased by 55 minutes per well, maintenance time of 2.5 hours per shutdown. Solution: Installed XQ89/3YC main pliers pin (XYQ3C.Z.1-2). Repair Effect: Wear eliminated, jamming stopped, pipe handling time reduced to original 22 minutes per well, maintenance time cut to 15 minutes per week, operational efficiency improved. Customer Feedback: “The new main pliers pin fits perfectly—our XQ89/3YC pliers run smoothly, and we’re no longer wasting time on unplanned shutdowns.”

Case 2: Permian Basin (USA)

Equipment Model: TQ340/35YA Hydraulic Equipment; Fault: Cylinder body leak (KHT7625-921); Load: 32 MPa; Data Before Repair: Hydraulic fluid loss of 9 liters per day, cylinder pressure drop of 18%, equipment efficiency reduced by 42%, 1 shutdown per day. Solution: Replaced faulty cylinder body with KHT7625-921 TQ340/35YA.1.16-3 Cylinder body. Repair Effect: Leaks eliminated, pressure drop reduced to 2%, equipment efficiency restored to 100%, fluid loss cut to 0 liters per day, operational stability maintained for 14 months. Customer Feedback: “The new cylinder body is built to last—we’re saving money on hydraulic fluid and avoiding costly shutdowns, just like the reliable components we need for our operations.”

Case 3: North Sea Oilfield (UK)

Equipment Model: 71 814-S BV-100C Casing Head Tong; Fault: Front jaw plate wear (KHT5500-43); Load: 36 MPa; Data Before Repair: Jaw plate wear of 0.8 mm, pipe slippage during operation, 1 safety near-miss, 2 shutdowns per well. Solution: Installed KHT5500-43 KHT5500.1.1.1-1 (1) Front Jaw Plate 1 (5 1/2″). Repair Effect: Slippage eliminated, safety near-misses reduced to 0, shutdowns eliminated, casing handling time reduced by 30 minutes per well, service life extended by 4.5 years. Customer Feedback: “The new jaw plate clamps securely, even on large-diameter casing—our team feels safer, and we’re completing more wells per day.”

Case 4: West Siberian Oilfield (Russia)

Equipment Model: KJD9625 Drilling Equipment; Fault: Support roller bearing failure (KHT7625-533 1206TN1); Load: 41 MPa; Data Before Repair: Bearing temperature of 95°C, gear box jamming every 15 hours, maintenance time of 3 hours per shutdown, transmission efficiency reduced by 38%. Solution: Replaced faulty bearing with KHT7625-533 GB/T281-1994 Support roller bearing 1206TN1. Repair Effect: Bearing temperature dropped to 46°C, jamming stopped, transmission efficiency restored to 100%, maintenance time cut to 25 minutes per week, bearing service life extended to 11,500 operating hours. Customer Feedback: “The 1206TN1 bearing runs cooler and more reliably—our KJD9625 equipment hasn’t failed since installation, saving us thousands in downtime costs.”

Maintenance & Engineer Tips: Avoid Common Mistakes and Extend Part Life

Our senior engineers, with over 36 years of oilfield and industrial experience, have compiled these practical tips to help you get the most out of our KHT5500 and KHT7625 parts and avoid costly mistakes—lessons learned from real-world maintenance scenarios:

• Inspect bearings (KHT7625-533, KHT5500-134) every 320 operating hours for wear, noise, and overheating. For 1206TN1 support roller bearings (KHT7625-533), use high-temperature lubricant (rated to 200°C) and check lubrication levels every 180 hours—using the wrong lubricant can reduce bearing life by 3,800 hours, which aligns with best practices for maintaining high-load, high-speed bearings like the 1206TN series. If you notice unusual sounds or temperatures above 75°C, replace the bearing immediately.

• When installing O-rings (KHT5500-369, KHT7625-582), clean the sealing surface thoroughly and apply a thin layer of hydraulic fluid to prevent damage during installation. Follow GB/T 3452.1 standards for O-ring installation—improper installation can cause leaks, which waste 6-12 liters of hydraulic fluid per day and lead to equipment damage.

• Check jaw plates (KHT5500-43, KHT5500-380) every 400 operating hours for wear. Replace jaw plates if wear exceeds 0.5mm—worn jaw plates can cause pipe slippage, leading to safety hazards and equipment damage, especially for 71 814-S BV-100C casing head tongs handling large-diameter casing.

• Store spare parts in a dry, temperature-controlled environment (6°C-29°C) to prevent corrosion and material degradation. Bearings should be stored in their original packaging until installation to protect them from dust and moisture, and O-rings should be stored away from direct sunlight to prevent rubber degradation.

• Inspect hydraulic components (KHT7625-921, KHT7625-27) every 250 operating hours for leaks and damage. For cylinder bodies, check the inner surface for scratches—even small scratches can cause leaks and reduce service life. Replace hydraulic valves if they become stuck or fail to regulate pressure properly.

FAQ: Answers to Your Most Common Questions

Procurement Guide & Conclusion

When it comes to procuring spare parts for your XQ89/3YC pipe oil power pliers, TQ340/35YA hydraulic equipment, 71 814-S BV-100C casing head tongs, or KJD9625 drilling equipment, choosing reliable, high-quality components is the key to minimizing downtime and maximizing productivity. Our KHT5500 and KHT7625 series parts, along with XQ89/3YC and XYQ12 accessories, are engineered to solve your most pressing pain points—ill-fitting components, frequent wear, hydraulic leaks, and gear failures—while complying with strict international and industry standards (GB, API 7K, SY/T 5074-2004) and backed by 27 years of industry experience. With a wide range of parts covering power pliers, hydraulic components, bearings, and transmission parts, we have everything you need to keep your equipment running smoothly.

Our parts are manufactured using advanced production processes and high-grade materials, ensuring durability and performance in even the harshest oilfield environments. We provide detailed technical specifications, compatibility guidance, and engineer support to help you make the right procurement decision—including compliance with API 7K and SY/T 5074-2004 standards. All parts are traceable with unique serial numbers, and our certifications give you peace of mind that you’re getting a reliable product. Our parts are also tested to handle the high torque and pressure demands of XQ89/3YC power pliers and TQ340/35YA equipment, ensuring they can withstand the demands of your operations. Whether you need a single replacement part (like KHT7625-533 bearing or KHT7625-921 cylinder body) or a bulk order, we are committed to providing you with high-quality products that meet your needs.

To keep your XQ89/3YC, TQ340/35YA, 71 814-S BV-100C, and KJD9625 equipment operating at peak performance and avoid costly downtime, choose our KHT5500 and KHT7625 series parts. Contact us today to discuss your specific requirements and place your order—we are here to provide you with the reliable spare parts you can trust, backed by the expertise and support you need to keep your oilfield operations running smoothly. Our KHT5500 and KHT7625 parts are designed to be your go-to solution for all your critical equipment maintenance needs, ensuring you can focus on what matters most: efficient, safe drilling operations.

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