Structure, Hydraulic & Transmission Spare Parts (Z05011401141AA, 1101020083, Z04020600004AA)

Core Purpose & Equipment Adaptation

We specialize in the production and supply of high-precision, direct-fit spare parts, specifically engineered to match the structural, hydraulic, transmission, and auxiliary systems of industrial machinery, oilfield equipment, and heavy-duty vehicles—with key models including Z05011401141AA Top assembly(right), 1101020083 Hose assembly 32I-2500, Z04020600004AA Front leg, 5401500007 Double row chain 2″ 32A-2, and 4500300013 Double row tapered roller bearing 3506/203.2D/YA3. All our parts adhere to strict global industry standards, including ISO 9001 (Quality Management System), API Spec 7K (Drilling Equipment Components), ISO 6406 (Hydraulic Components), GB/T 307.1 (Bearings), and GB/T 10827 (Hydraulic Hoses), ensuring reliable performance, perfect compatibility, and long service life. Our comprehensive product portfolio covers critical functional categories tailored to on-site operational needs: structural components (Z05011401141AA Top assembly(right), Z04020600004AA Front leg, P9950276AA Main girder L=5700), hydraulic parts (1101020083 Hose assembly, Z08330100354AA Hose assembly 6 L=400, 4900300006 Check valve), transmission components (5401500007 Double row chain, 4500300013 Double row tapered roller bearing, P1400188AA Shaft sleeve), fastening parts (4309300020 Nut M20, 4301308030 Bolt M8x30, 4300812050 Bolt M12X50), hydraulic connection parts (QBJ11040438 Z1/2″X38 pipe clamp, QBJ6130808 NPT1″ elbow, QBJ6140404 1/2″ elbow), and auxiliary parts (Z16140900001AA Oil stick, Z01030300002AA Lubrication system, P6900328AA Safety pin). We directly address the unique, costly pain points of three core user segments—equipment operation teams, on-site maintenance technicians, and procurement professionals—each relying on our parts to keep critical machinery running safely and efficiently. Operation teams face devastating downtime: damaged Z05011401141AA top assemblies or Z04020600004AA front legs compromise equipment structural integrity; leaking 1101020083 hydraulic hoses reduce system pressure, disabling hydraulic functions; worn 4500300013 bearings cause transmission noise and failure; and broken 5401500007 double row chains halt power transfer. Maintenance technicians struggle with ill-fitting parts that require time-consuming modifications, lack clear installation guidance, or fail quickly—wasting labor and extending downtime. Procurement professionals grapple with sourcing full-range, equipment-specific parts (for Z05011401141AA top assemblies, 1101020083 hoses, Z04020600004AA front legs) that meet strict industry standards, avoid repeated breakdowns, and balance quality with budget. The core purpose of our products is to eliminate these pain points by providing OEM-compatible, high-quality replacements for every mission-critical component—delivering stable structural support, leak-proof hydraulic performance, smooth transmission, secure fastening, and reliable auxiliary functions—all designed to withstand harsh industrial and oilfield conditions, reduce unplanned downtime, and lower long-term maintenance and replacement costs.

Product Overview

We offer a comprehensive portfolio of precision spare parts tailored to the structural, hydraulic, transmission, fastening, and auxiliary systems of industrial machinery, oilfield equipment, and heavy-duty vehicles—with key models including Z05011401141AA Top assembly(right), 1101020083 Hose assembly 32I-2500, Z04020600004AA Front leg, 5401500007 Double row chain 2″ 32A-2, and 4500300013 Double row tapered roller bearing 3506/203.2D/YA3. Our product range encompasses all critical functional categories to cover every on-site need: Structural Components: Z05011401141AA Top assembly(right) (provides upper structural support for equipment), Z04020600004AA Front leg (supports equipment front end, ensures stability), P9950276AA Main girder L=5700 (core structural beam, 5700mm length), Z04250100014AA Small platform (operator or maintenance platform), Z04310000003AA Stairs assembly (access to equipment upper parts), P991121784AA Edge beam (reinforces structural edges), P9911001267AA Rear closing plate (seals equipment rear end), P9943711AA Bottom beam, right angle gear box L=905 (supports gear box, 905mm length), P6217418AA Reinforced plate 548X240 (reinforces structural weak points, 548x240mm), P9840561AA Brace, doorframe (strengthens doorframe structure), Z05020300026AA Pipe guiding platform (supports and guides hydraulic pipes), P6003996AA Checkered plate 2850X514 (non-slip platform, 2850x514mm), Z05010300014AA Column II (secondary structural support column), P6500305AA Side expanded metal 180X1138 (protects equipment sides, 180x1138mm); Hydraulic Parts: 1101020083 Hose assembly 32I-2500 (32mm inner diameter, 2500mm length), Z08330100354AA Hose assembly 6 L=400 (6mm inner diameter, 400mm length), Z08330300026AA Hose assembly 10 (10mm inner diameter), 4900300006 Check valve (prevents hydraulic fluid backflow), P1300763AA Check valve fitting (connects check valve to hydraulic system), 4900450006 Bridge valve piece (hydraulic valve component, ensures fluid control), P2300031AA Bushing, filter (filter adapter, ensures filter stability); Hydraulic Connection Parts: QBJ11040438 Z1/2″X38 pipe clamp (secures 1/2″ hydraulic pipes), QBJ6130808 NPT1″ elbow (NPT1″ thread, changes hydraulic pipe direction), QBJ6140404 1/2″ elbow (1/2″ thread, pipe direction change), QBJ120101 Z1/8″ plug (seals 1/8″ hydraulic pipe openings); Transmission Components: 5401500007 Double row chain 2″ 32A-2 (2″ pitch, 32A-2 model, transmits power), 4500300013 Double row tapered roller bearing 3506/203.2D/YA3 (supports rotating shafts, reduces friction), P1400188AA Shaft sleeve (protects shafts, ensures alignment), P1400175AA Shaft sleeve (secondary shaft protection), P1100639AA Spacer (adjusts component spacing), P5400115AA Key B25X14X127 (secures gears/shafts, 25x14x127mm), Z01030500003AA Shifting fork assembly (controls gear shifts in transmission); Fastening Parts: 4309300020 Nut M20 (M20 thread, secures components), 4301308030 Bolt M8x30 (M8x30mm, fastens structural/hydraulic parts), 4300812050 Bolt M12X50 (M12x50mm, heavy-duty fastening), 4300308015 Bolt M8X15 (M8x15mm, light-duty fastening), 4301316040 Bolt M16X40 (M16x40mm, heavy-duty structural fastening); Auxiliary Parts: Z16140900001AA Oil stick (checks oil levels), Z01030300002AA Lubrication system (lubricates transmission/structural parts), P6900328AA Safety pin (prevents accidental component movement), P1200137AA Nut, spherical pin (secures spherical pins), P1700132AA O sealing ring, 5300100142 O ring 48.7X3.55 (prevents hydraulic leaks), P6000844AA Upper block, front steel plate spring (supports steel plate spring), P7100319AA Tray, steel plate spring (holds steel plate spring), P6042154AA Bottom plate 130X137 (small structural base plate, 130x137mm), Z04011200026AA Reinforced pipe (strengthens hydraulic/structural pipes). All parts are manufactured using premium materials: high-strength alloy steel for structural components, bearings, and shafts (ensuring wear resistance and load-bearing capacity); corrosion-resistant steel for hydraulic hoses, fittings, and clamps (preventing rust in harsh environments); nitrile rubber for O-rings (ensuring leak-proof performance); and precision-machined materials for bushings, spacers, and valves (ensuring perfect fit). Every part is a direct OEM-compatible replacement, engineered to exact dimensions and functional specifications—eliminating on-site modifications, reducing maintenance time, and ensuring seamless integration with existing equipment. We prioritize quality control at every stage: raw material inspection, precision machining, heat treatment (for structural parts and bearings), pressure testing (for hydraulic components), and final performance verification—ensuring each part meets or exceeds industry standards and delivers long service life, reliable performance, and minimized replacement costs.

Functional Features

Our spare parts are designed to directly solve the most common on-site pain points—structural instability, hydraulic leaks, transmission inefficiency, fastening loosening, and auxiliary component failure—with functional features that prioritize reliability, safety, durability, and ease of use, all tailored to real equipment operational needs:

• Stable & Durable Structural Support: Z05011401141AA Top assembly(right) and Z04020600004AA Front leg are made of high-strength steel, providing exceptional load-bearing capacity to withstand heavy equipment weight, vibration, and impact—ensuring equipment stability. P9950276AA Main girder L=5700 (5700mm length) serves as the core structural beam, resisting bending and deformation under harsh operating conditions. Reinforced plates, edge beams, and braces (P6217418AA, P991121784AA, P9840561AA) strengthen structural weak points, preventing damage and extending equipment service life. Checkered plates (P6003996AA) and small platforms (Z04250100014AA) provide safe, non-slip access for operators and maintenance technicians, enhancing on-site safety.

• Leak-Proof & High-Pressure Hydraulic Performance: 1101020083 Hose assembly 32I-2500, Z08330100354AA Hose assembly 6 L=400, and Z08330300026AA Hose assembly 10 are made of reinforced rubber with multiple steel braiding layers, resisting high hydraulic pressure (up to 40MPa) and wear while maintaining flexibility for equipment movement. 4900300006 Check valve and P1300763AA Check valve fitting prevent hydraulic fluid backflow, ensuring stable system pressure and protecting hydraulic components from damage. 5300100142 O ring 48.7X3.55 and P1700132AA O sealing ring feature high-quality nitrile rubber seals, preventing hydraulic fluid leaks and protecting components from contamination. QBJ series pipe clamps, elbows, and plugs (QBJ11040438, QBJ6130808, QBJ120101) provide secure, leak-proof connections between hydraulic components, ensuring stable system operation.

• Smooth & Efficient Transmission: 5401500007 Double row chain 2″ 32A-2 features high-strength steel links with precision machining, ensuring smooth power transmission and resistance to wear and stretching—ideal for heavy-duty power transfer. 4500300013 Double row tapered roller bearing 3506/203.2D/YA3 reduces friction between rotating shafts and components, ensuring smooth rotation and extending shaft service life. P1400188AA and P1400175AA Shaft sleeves protect shafts from wear and misalignment, maintaining transmission efficiency. P5400115AA Key B25X14X127 securely fastens gears and shafts, preventing slippage and ensuring power transfer reliability. Z01030500003AA Shifting fork assembly provides precise control of gear shifts, ensuring smooth transmission operation.

• Secure Fastening & Easy Installation: 4309300020 Nut M20, 4301308030 Bolt M8x30, 4300812050 Bolt M12X50, and other fastening parts feature precision threads for a tight fit, securing components firmly and resisting loosening due to vibration. All fasteners are designed for easy installation, requiring only standard tools—no specialized equipment or modifications needed—reducing maintenance time and labor costs. They work seamlessly with structural, hydraulic, and transmission components, ensuring long-term stability.

• Reliable Auxiliary & Safety Functions: Z16140900001AA Oil stick allows easy checking of oil levels in transmission and hydraulic systems, simplifying maintenance. Z01030300002AA Lubrication system automatically lubricates critical components (bearings, gears, shafts), reducing friction and wear. P6900328AA Safety pin prevents accidental movement of components, protecting operators and equipment from injury or damage. P1200137AA Nut, spherical pin secures spherical pins, ensuring reliable connection of moving components. P6000844AA Upper block and P7100319AA Tray for steel plate springs support and secure steel plate springs, maintaining suspension performance.

Structural Characteristics

Each component is engineered with structural designs optimized for the rigorous mechanical, environmental, and safety demands of industrial and oilfield operations—tailored to their specific function, ensuring durability, safety, and performance in extreme conditions:

• Structural Components: Z05011401141AA Top assembly(right) has a welded steel frame design with thick-walled steel tubes, precision-machined mounting points for seamless integration with equipment frames, and corrosion-resistant coating to withstand harsh environments. Z04020600004AA Front leg has a rectangular steel tube design with reinforced base, providing exceptional load-bearing capacity and stability. P9950276AA Main girder L=5700 is a seamless steel beam with a box-type cross-section, maximizing rigidity and resistance to bending. P6217418AA Reinforced plate 548X240 is a flat steel plate with pre-drilled mounting holes, designed to reinforce structural weak points. P6003996AA Checkered plate 2850X514 has a raised checkered surface for non-slip performance, made of high-strength steel for durability.

• Hydraulic Components: 1101020083 Hose assembly 32I-2500 features a nitrile rubber inner tube (resistant to hydraulic oil), multiple layers of steel braiding (for high-pressure resistance), and crimped steel fittings (zinc-coated for corrosion resistance)—flexible enough to bend with equipment movement while maintaining structural integrity. 4900300006 Check valve has a cast steel body with a spring-loaded poppet design, ensuring quick response to fluid backflow and reliable sealing. 5300100142 O ring 48.7X3.55 has a circular cross-section, made of nitrile rubber for compatibility with hydraulic fluids and resistance to high temperatures. QBJ11040438 Z1/2″X38 pipe clamp has a cast iron body with a bolted design, securely clamping hydraulic pipes and preventing movement.

• Transmission Components: 5401500007 Double row chain 2″ 32A-2 has a double-row link design, made of high-strength alloy steel with heat treatment for wear resistance and toughness—precision-machined links ensure smooth meshing with sprockets. 4500300013 Double row tapered roller bearing 3506/203.2D/YA3 has a double-row tapered roller design, with inner and outer rings made of alloy steel—providing high radial and axial load capacity, and reducing friction. P1400188AA Shaft sleeve has a cylindrical design with a smooth inner surface, made of wear-resistant steel—protecting shafts and ensuring alignment.

• Fastening & Auxiliary Parts: 4309300020 Nut M20 has a hexagonal head design with precision metric threads—zinc-coated for corrosion resistance. 4301308030 Bolt M8x30 has a hexagonal head and a full thread design, made of high-strength steel for load-bearing capacity. P6900328AA Safety pin has a cylindrical design with a spring-loaded clip, ensuring secure installation and easy removal. Z16140900001AA Oil stick has a steel rod with a plastic handle, marked with oil level indicators for easy reading. Z01030300002AA Lubrication system has a reservoir, pump, and distribution lines—designed to deliver lubricant to critical components automatically.

Applicable Working Conditions

Our spare parts are field-tested and rated for the most demanding industrial and oilfield operating environments, working reliably across all key scenarios—meeting ISO 9001, API 7K, ISO 6406, GB/T 307.1, and GB/T 10827 standards to ensure performance when it matters most:

• Structural Components: Z05011401141AA top assemblies, Z04020600004AA front legs, main girders, reinforced plates, and other structural parts operate in equipment frames, withstanding heavy loads (up to 120t), high vibration, and temperature fluctuations (-20°C to +80°C). They resist corrosion from dust, mud, and saltwater—suitable for oilfield rigs, construction machinery, industrial frames, and offshore equipment.

• Hydraulic Components: 1101020083 hoses, check valves, O-rings, pipe clamps, and elbows operate in hydraulic systems, withstanding high pressures (up to 40MPa) and temperature fluctuations (-20°C to +85°C). They resist hydraulic oil, lubricants, and industrial chemicals—suitable for hydraulic lifts, oilfield hydraulic systems, construction machinery, and industrial presses.

• Transmission Components: 5401500007 double row chains, 4500300013 bearings, shaft sleeves, and keys operate in transmission systems, withstanding high torque (up to 600N·m), high temperatures (+50°C to +120°C), and continuous use. They resist wear, corrosion, and vibration—suitable for oilfield rigs, industrial gearboxes, heavy-duty conveyors, and construction machinery.

• Fastening & Auxiliary Parts: Bolts, nuts, safety pins, oil sticks, and lubrication systems operate in all equipment systems, withstanding temperature fluctuations (-20°C to +80°C), vibration, and corrosion. They provide secure fastening and reliable auxiliary functions—suitable for all industrial and oilfield equipment.

• General Operating Environments: All parts stand up to industrial dust, oilfield mud, saltwater corrosion (for coastal/offshore equipment), high humidity (≤95% RH), heavy vibration, and extreme temperature fluctuations (-20°C to +120°C). They’re ideal for onshore/offshore oilfields, industrial plants, construction sites, mining operations, and heavy-duty vehicle fleets—meeting all industry safety and quality standards.

Maintenance & Care Recommendations

Proper maintenance of structural, hydraulic, transmission, and auxiliary spare parts is key to extending their service life, reducing replacement costs, and preventing unplanned equipment failure—especially in harsh industrial and oilfield environments. Below are practical, on-site tips designed for maintenance technicians, with clear steps to keep parts working reliably and in compliance with industry standards:

• Regular Inspection (30-50 Working Hours): Visually check all critical parts—inspect Z05011401141AA top assemblies and Z04020600004AA front legs for cracks or bending; check 1101020083 hoses for leaks, cracks, or bulges; verify 4500300013 bearings for noise or looseness; inspect 5401500007 chains for wear or stretching; check fasteners for loosening; ensure P6900328AA safety pins are securely installed.

• Structural Components Care: Inspect structural parts monthly for cracks, bending, or corrosion—clean surfaces to remove dust and mud, and touch up with anti-corrosion paint if needed. Tighten all structural fasteners (4300812050, 4301316040) to the specified torque every 40 working hours. Check P9950276AA main girders and edge beams for deformation—replace if damaged. Clean checkered plates (P6003996AA) monthly to maintain non-slip performance.

• Hydraulic Components Care: Inspect 1101020083, Z08330100354AA, and Z08330300026AA hoses monthly for cracks, bulges, or leaks—replace if damaged. Tighten pipe clamps (QBJ11040438) and fittings quarterly to prevent leaks; apply thread sealant when reinstalling. Replace 5300100142 O-rings and P1700132AA O sealing rings every 100 working hours or if leaks are detected. Test 4900300006 check valves monthly to ensure they prevent backflow—clean or replace if faulty. Flush hydraulic components quarterly to remove clogs and prevent corrosion.

• Transmission Components Care: Inspect 5401500007 double row chains monthly for wear, stretching, or broken links—lubricate with high-temperature chain oil every 40 working hours, and replace if worn beyond the safe limit. Check 4500300013 bearings monthly for noise, vibration, or oil leakage—lubricate with grease every 60 working hours, and replace if faulty. Clean and inspect P1400188AA and P1400175AA shaft sleeves monthly—replace if worn or damaged. Clean P5400115AA keys and keyways monthly—lubricate and replace if worn.

• Fastening & Auxiliary Parts Care: Tighten bolts, nuts, and other fasteners to the specified torque every 40 working hours—replace any worn or damaged fasteners. Inspect P6900328AA safety pins monthly—replace if bent or damaged. Check Z16140900001AA oil sticks monthly for damage—replace if the handle is broken or the oil level marks are unreadable. Maintain Z01030300002AA lubrication system by checking the lubricant level weekly, adding lubricant as needed, and replacing the filter every 200 working hours.

• Timely Replacement of Worn Parts: Replace any part that shows wear, damage, or failure—especially structural components, hydraulic hoses, bearings, and chains. Follow OEM replacement intervals for critical parts to keep equipment stable and safe.

• Proper Storage of Spare Parts: Store all parts in a dry, well-ventilated area (10°C-30°C) away from direct sunlight, industrial chemicals, and oilfield mud. Keep rubber components (hoses, O-rings) in a cool, dry place to prevent hardening; store metal parts (structural components, bearings, fasteners) in anti-corrosion packaging; store precision parts (valves, bushings) in their original packaging to protect machined surfaces; keep small parts (safety pins, keys, washers) in labeled containers for easy access.

We supply the following spare parts:

On-Site Fault Maintenance Cases

Below are 3 real, short on-site fault stories—reflecting common problems equipment teams face—showing how our direct-fit spare parts fix critical issues quickly, minimize downtime, and get operations back on track, while meeting strict industry standards:

Case 1: Structural Instability from Damaged Z04020600004AA Front Leg

A construction machine began to wobble during operation, with visible structural instability that posed a safety risk to operators. Inspection revealed the Z04020600004AA Front leg had a bent steel tube (caused by impact during heavy lifting), compromising its load-bearing capacity. This not only threatened equipment damage but also halted production. Solution: We replaced the damaged front leg with our OEM-compatible Z04020600004AA part, tightened all structural fasteners, and tested the equipment stability. The instability was resolved in 2 hours, restoring safe operation and allowing the machine to resume production.

Case 2: Hydraulic Leak from Loose QBJ11040438 Pipe Clamp & Damaged O-Ring

An oilfield rig’s hydraulic system began experiencing persistent fluid leaks, reducing system pressure and causing hydraulic functions to fail intermittently. Inspection found the QBJ11040438 Z1/2″X38 pipe clamp had loosened, damaging the 5300100142 O ring 48.7X3.55 and leading to leaks. Solution: We replaced the damaged O-ring with our 5300100142 part, reinstalled and tightened the QBJ11040438 pipe clamp, and topped up the hydraulic fluid. The leak was eliminated in 30 minutes, restoring stable hydraulic pressure and full system functionality.

Case 3: Transmission Noise & Failure from Worn 4500300013 Bearing

A heavy-duty conveyor’s transmission system began emitting loud noise, with reduced power transfer efficiency—eventually leading to a complete shutdown. Inspection revealed the 4500300013 Double row tapered roller bearing 3506/203.2D/YA3 was worn, causing friction and misalignment in the rotating shaft. Solution: We replaced the worn bearing with our OEM-compatible 4500300013 part, lubricated the transmission system, and tested the conveyor. The noise was eliminated, and power transfer efficiency was fully restored in 1.5 hours, allowing the conveyor to resume normal operation.

FAQ (Frequently Asked Questions)

Procurement Guidance

In industrial and oilfield operations, unplanned downtime, equipment damage, and safety hazards from faulty or ill-fitting spare parts cost thousands in lost productivity and repairs. Many teams struggle with low-quality parts that fail quickly, don’t meet industry standards, or require time-consuming modifications—wasting labor and extending operational disruptions. Our comprehensive portfolio of structural, hydraulic, transmission, fastening, and auxiliary spare parts (including Z05011401141AA Top assembly(right), 1101020083 Hose assembly 32I-2500, Z04020600004AA Front leg, 5401500007 Double row chain, and 4500300013 Bearing) is built to eliminate these risks, delivering OEM-level performance, perfect compatibility, and exceptional durability. Every part is made with premium materials, tested to withstand the harshest on-site conditions, and compliant with global industry standards—ensuring reliable operation, longer service life, and lower maintenance costs. Whether you need structural components for stable support, hydraulic parts for leak-proof performance, transmission components for smooth power transfer, fasteners for secure attachment, or auxiliary parts for reliable operation, we offer a one-stop supply solution tailored to all your equipment needs. Our parts are designed to keep your machinery running at peak efficiency, minimize downtime, protect worker safety, and maximize productivity—with clear technical guidance to help you verify compatibility and simplify procurement. We prioritize your operational success by providing parts you can trust to perform when it matters most. Choose our precision-engineered spare parts for reliable, direct-fit replacements that keep your industrial and oilfield operations safe, continuous, and efficient.

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Emeil: [email protected]   whatsapp: +86 15275658619

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