

OEM 804002284 The XCMG Bucket Arm Cylinder (804002284) is a genuine OEM hydraulic cylinder engineered to drive the bucket arm motion on XCMG hydraulic excavators. Identified by part number 804002284, this precision-manufactured cylinder delivers reliable force, smooth stroking, and leak-resistant sealing in the toughest construction, mining, and quarry environments.
Built from honed steel barrels and hard-chrome plated rods with premium seal kits, the 804002284 Bucket Arm Cylinder offers outstanding pressure containment, wear resistance, and long service life. Its exact OEM dimensions, mounting pin bore, and port configuration guarantee a direct replacement without modification.
By converting hydraulic pressure into controlled linear force, this cylinder keeps the bucket arm responsive, stable, and productive through every digging cycle your machine performs.
The 804002284 Bucket Arm Cylinder uses a honed seamless steel barrel that resists ovality and internal scoring. This keeps the piston seal in full contact throughout the full stroke length.
The hard chrome plated rod resists corrosion, pitting, and side-load scratching. The chrome layer also reduces friction, so the rod glides smoothly through the gland without binding.
A composite NBR and PU seal kit handles both high-pressure and low-friction duties. Wiper seals keep dust and grit out, protecting the internal surfaces from abrasive damage.
Pin-mounted spherical bushings absorb alignment variation between the cylinder and the linkage. This reduces bending stress on the rod and extends the life of the whole assembly.
By converting pressure into smooth linear force, the 804002284 cylinder keeps the bucket arm responsive and stable through every digging cycle.
Production starts with certified steel tube stock that is cut, honed, and inspected for straightness. Each barrel must pass a dimensional check before it advances to welding.
Piston rods are ground and polished before hard chrome plating is applied. Plating thickness is measured to ensure uniform coverage and maximum wear resistance.
Every assembled cylinder is hydrostatically proof-tested at a pressure well above its rated working value. Any unit showing pressure loss or weeping is rejected immediately.
Final inspection includes stroke measurement, port alignment checks, and seal integrity verification. Batch records allow XCMG to trace each cylinder back to its material heat numbers.
The result is a bucket arm cylinder that performs predictably for thousands of hours on your XCMG excavator, season after season.
The bucket arm cylinder drives one of the most active joints on the machine. Every dig, swing, and dump cycle loads and unloads this cylinder thousands of times per shift.
The 804002284 cylinder provides dependable force and consistent sealing, preventing drift that would otherwise reduce digging accuracy and slow cycle times.
Field records from heavy excavation work show that machines fitted with genuine XCMG cylinders experience fewer hydraulic faults and shorter diagnostic sessions, improving availability.
The robust barrel and protective chrome layer also resist moisture, dust, and chemical exposure, keeping performance stable across long service intervals in the field.
Inspect cylinders regularly for rod scoring, weeping seals, or pin bore wear. Replace any compromised unit promptly with a genuine 804002284 component.
By keeping the bucket arm under precise control, this cylinder supports safe, productive excavator operation every working day.
The 804002284 Bucket Arm Cylinder installs with standard lifting equipment and hand tools, which keeps downtime and labour costs low during scheduled servicing.
Park the excavator on firm level ground, lower the attachment, and release all hydraulic pressure. Lock out the machine so the engine cannot be started while work is in progress.
Clean the surrounding area so no grit enters the open circuit. Cap exposed ports immediately, because even small particles can damage pumps and control valves downstream.
Install new O-rings rather than reusing old ones, lightly lubricate them with clean hydraulic oil, and align the flange faces before drawing bolts tight to the specified torque.
After assembly, run the machine at low idle and check every joint for weeping. Cycle the bucket function slowly, then inspect again once the oil has reached operating temperature.
During routine service, inspect the cylinder for rod damage, seal weeping, or pin bore wear. Replace any degraded assembly promptly to preserve hydraulic performance.
Choosing the genuine 804002284 Bucket Arm Cylinder pays back over time by preventing hydraulic leaks, cutting diagnostic hours, and eliminating downtime from failed cylinders.
One blown seal can send debris through the hydraulic circuit, damaging pumps, valves, and other cylinders and converting a small repair into a complete system overhaul.
Across a typical 10,000-hour service life, the front attachment endures millions of load cycles. The robust barrel and rod of the 804002284 keep performance consistent throughout.
Reliable sealing also extends the life of connected components such as pumps, valves, and other cylinders, reducing replacement frequency and total maintenance spending.
Field data gathered from large mining and construction fleets shows genuine XCMG cylinders cut hydraulic-related downtime by as much as 19 percent.
The durable construction and quality finish keep the cylinder serviceable for years, removing the need for premature replacement and lowering lifecycle costs.
XCMG applies sustainable manufacturing principles to the 804002284 Bucket Arm Cylinder through recyclable steel content and energy-efficient production processes.
The extended service life, often exceeding 8,000 hours in normal conditions, cuts material waste and lowers the environmental footprint associated with frequent replacements.
Preventing hydraulic leaks also avoids secondary damage and soil contamination, which supports regulatory compliance and responsible environmental stewardship on job sites.
Steel and seal components are free from restricted substances and comply with RoHS and REACH rules, ensuring safe handling and disposal at end of life.
Selecting genuine XCMG hydraulic components supports responsible equipment management while delivering superior operational reliability and safety.
The precision-engineered design allows long, dependable service, which minimises resource consumption and waste generation across the machine’s working life.
The 804002284 Bucket Arm Cylinder is held in XCMG regional distribution centres across North America, Europe, Asia, and Australia, supporting fast delivery for scheduled maintenance.
Every unit is packed in a wooden export case with moisture-barrier wrapping, shielding it from impact, corrosion, and contamination throughout transit and storage.
For fleet-wide orders, XCMG offers volume pricing and consolidated freight options that reduce procurement costs and streamline inventory planning.
Real-time stock visibility and dedicated supply chain support help fulfil urgent requests quickly, shortening downtime and keeping excavators on the job.
Sturdy packaging preserves the cylinder’s factory condition until it is installed, preventing the rod damage that can occur in poorly stored spare parts.
With XCMG’s global aftermarket network behind it, you can depend on consistent quality and availability to keep your fleet working at full capacity.
Every 804002284 Bucket Arm Cylinder comes from an ISO 9001 and ISO 14001 certified plant with complete material traceability from raw steel to packed product.
Incoming tube and rod stock is tested for chemical composition, mechanical properties, and dimensional accuracy before release to the production line.
During manufacturing, bore size, rod diameter, and chrome thickness are monitored continuously, and every finished unit receives a full visual inspection.
Post-production checks include hydrostatic proof testing, stroke verification, and seal integrity testing to confirm each cylinder matches the required specification.
Sample cylinders from each batch undergo pressure cycling, salt spray exposure, and rod fatigue testing to prove long-term durability and leak-free performance.
Only cylinders that clear every quality gate are released, so you receive a dependable, high-performance hydraulic cylinder every time.
Cheap aftermarket cylinders often use thinner barrels, softer rods, or low-grade seals. Those shortcuts lead to early scoring, weeping glands, and poor fitment on the machine.
The genuine 804002284 is built to XCMG’s exacting standards, delivering correct stroke, reliable force output, and durable performance in the field.
Its honed barrel and chrome-plated rod provide consistent results, lowering the chance of expensive hydraulic failures and unplanned machine downtime.
Using genuine XCMG parts also preserves warranty coverage, protects resale value, and maintains compatibility with other OEM systems on the machine.
Backed by XCMG’s global quality standards and technical support, this bucket arm cylinder offers performance you can rely on.
Choose genuine XCMG for uncompromising hydraulic performance in the most demanding working conditions.
The XCMG 804002284 Bucket Arm Cylinder is a vital hydraulic component for any XCMG excavator, ensuring reliable bucket arm control for digging and loading work in demanding conditions.
Its precision-engineered design, honed barrel, and chrome-plated rod deliver dependable hydraulic performance, enabling safe and productive operation in harsh environments.
By preventing hydraulic leaks and maintaining stable force output, this cylinder reduces downtime, lowers maintenance costs, and extends machine service life.
Always purchase genuine XCMG parts from authorised dealers to guarantee authenticity, quality, and performance for your equipment fleet.
Choose the 804002284 Bucket Arm Cylinder for dependable hydraulic control and lasting operational peace of mind.
Partner with XCMG – your trusted source for heavy equipment hydraulic components that deliver real value.
OEM 804002284 – XCMG Bucket Arm Cylinder – the definitive hydraulic cylinder solution for your excavator’s front attachment. Engineered for durability, designed for reliable force output, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.