803484633
XCMG Fitting OEM 803484633 – Genuine Hydraulic Excavator Connector Component
2026-09-20
803370327
XCMG Hose Assembly OEM 803370327 – Genuine Hydraulic Excavator Hose Assembly Component
2026-09-20

XCMG Gear Pump OEM 803104542 – Genuine Hydraulic Excavator Gear Pump Component

XCMG Gear Pump 803104542
Gear Pump
XCMG Шестерённый насос 803104542
Шестерённый насос
XCMG Bomba de engranajes 803104542
Bomba de engranajes

OEM 803104542 The XCMG Gear Pump 803104542 is a genuine OEM hydraulic pump engineered to supply pressurized oil to multiple circuits on XCMG excavators.

Identified by part number 803104542, this factory-built gear pump drives boom, arm, bucket, and auxiliary functions with stable flow and reliable pressure output.

It is manufactured from high-strength cast iron and precision-ground steel gears, with durable bearings and seals that resist wear in harsh construction environments.

Exact OEM mounting flange, shaft, and port geometry guarantee a direct replacement without modification, so the pump bolts on and connects cleanly on the first attempt.

By delivering stable flow and pressure, this gear pump keeps cycle times short and machine response predictable through long working shifts.

Gear Pump 803104542 – Technical Specifications

ParameterSpecification
OEM Number803104542
Product NameGear Pump
BrandXCMG (Genuine OEM)
TypeExternal gear pump, single stage
Displacement32 mL/r nominal
Max Pressure25 MPa continuous, 28 MPa peak
Rated Pressure20 MPa continuous service
Speed Range600 – 2500 rpm
Rotation DirectionClockwise (viewed from shaft end)
Mounting FlangeSAE 4-bolt flange, standard pilot
Shaft TypeStraight keyed shaft, 13 teeth spline
Port ConnectionsSAE split flange, BSPP threaded ports
Body MaterialHigh-strength cast iron housing
Gear MaterialCase-hardened alloy steel, ground finish
Net WeightApproximately 9.5 kg
Operating Temperature-20°C to +100°C
Viscosity Range10 – 300 cSt recommended
FiltrationISO 18/15 or better required
Volumetric Efficiency≥ 92% at rated conditions
CompatibilityXCMG XE series excavators (multiple tonnage classes)
PackagingExport-grade wooden case with rust-preventive wrap
StandardsISO 9001:2015, ISO 14001:2015, RoHS compliant, CE marked

Key Features and Outstanding Benefits

The 803104542 Gear Pump uses precision-ground steel gears that maintain tight clearances. This keeps volumetric efficiency high and internal leakage low over thousands of hours.

Each stage delivers oil to a dedicated circuit, so boom and bucket functions can operate simultaneously without one function starving the other of flow.

The cast iron housing resists vibration, thermal cycling, and contamination, protecting the internal components in demanding construction, mining, and quarry conditions.

Heavy-duty bearings and high-quality seals reduce wear and prevent external leaks, extending service intervals and lowering maintenance costs for fleet operators.

Exact OEM mounting flange, shaft, and port geometry allow direct replacement without modification. The pump bolts on and connects cleanly on the first attempt.

Precision Manufacturing and Quality Control

Production starts with certified cast iron and alloy steel that are checked for chemical composition, hardness, and microstructure before release to the machining line.

Gears and shafts are machined on computer-controlled centers that hold tooth profile, lead, and backlash to exact tolerances for quiet, efficient operation.

Housings are bored and faced in single setups to maintain bore alignment and flange perpendicularity, which prevents premature bearing wear and shaft deflection.

After assembly, every pump is run-tested for flow, pressure, and leakage. Units that do not meet specification are rejected before they leave the plant.

Batch records let XCMG trace each 803104542 pump back to its raw material lots, so quality issues can be identified and corrected quickly if they ever arise.

How a Gear Pump Supports Hydraulic System Performance

A gear pump converts mechanical rotation into hydraulic flow. Meshing gears trap oil and push it through the outlet port with consistent volume per revolution.

The 803104542 pump delivers consistent flow at low and high engine speeds, which keeps boom, arm, and bucket movements smooth and predictable for the operator.

Stable pressure output protects valves, cylinders, and motors from shock loads, reducing the chance of premature failure in the hydraulic system.

Efficient gear meshing and low internal leakage mean less power is wasted as heat, which lowers fuel consumption and extends hydraulic oil life.

When one circuit is not in use, the pump still supplies the active circuit with full flow, so cycle times stay short and productivity remains high.

Inspect the pump regularly for unusual noise, vibration, or overheating. Replace any worn unit promptly with a genuine 803104542 gear pump.

Installation Steps and Routine Maintenance

The 803104542 Gear Pump installs with standard hand tools, which keeps downtime and labour costs low during scheduled servicing or emergency replacement.

Park the excavator on firm level ground, lower the attachment, and release all hydraulic pressure. Lock out the machine before any work begins.

Clean the mounting flange and shaft area thoroughly. Remove the old pump and inspect the coupling, seals, and ports for wear or damage.

Fit the new pump onto the mounting flange, align the shaft with the drive coupling, and tighten the mounting bolts to the specified torque.

Connect the suction and pressure lines, replace any worn seals or O-rings, and fill the pump case with clean hydraulic oil before startup.

Start the engine at low idle, check for leaks, and confirm stable pressure. Run the machine through full function cycles before returning it to work.

Cost Savings and Uptime Advantages

Choosing the genuine 803104542 Gear Pump pays back over time by preventing unexpected failures, cutting diagnostic hours, and reducing unplanned downtime.

A failed pump can starve the hydraulic system of flow, damage valves and cylinders, and halt production for hours or even days.

The durable construction of this pump keeps flow performance consistent across a long service life, reducing the frequency of repairs and replacements.

Reliable pressure output also extends the life of connected components such as control valves, cylinders, and motors, lowering total cost of ownership.

Field data from large construction and mining fleets shows genuine XCMG hydraulic components cut hydraulic-related downtime by as much as 18 percent.

The pump remains serviceable for years under normal operating conditions, removing the need for premature replacement and reducing parts inventory costs.

Sustainability and Lifecycle Considerations

XCMG applies sustainable manufacturing principles to the 803104542 Gear Pump through recyclable cast iron and steel content and energy-efficient production processes.

The extended service life, often exceeding 10,000 hours in normal conditions, cuts material waste and lowers the environmental footprint of replacement parts.

Preventing hydraulic leaks also avoids secondary damage and soil contamination, which supports regulatory compliance and responsible site stewardship.

Cast iron and steel materials are free from restricted substances and comply with RoHS and REACH rules, ensuring safe handling and disposal.

Selecting genuine XCMG hydraulic components supports responsible equipment management while delivering superior operational reliability.

The precision-engineered design allows long, dependable service, which minimises resource consumption across the machine working life.

Global Availability and Supply Chain Strength

The 803104542 Gear Pump is held in XCMG regional distribution centres across North America, Europe, Asia, and Australia, supporting fast delivery.

Every unit is packed with protective caps and rust-preventive wrap inside a fitted wooden case, shielding it from impact and contamination in transit.

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 working.

Sturdy packaging preserves the factory condition of the pump until it is installed, preventing surface damage that can occur in poorly stored spare parts.

With the XCMG global aftermarket network behind it, you can depend on consistent quality and availability to keep your fleet at full capacity.

Quality Assurance and Validation Testing

Every 803104542 Gear Pump comes from an ISO 9001 and ISO 14001 certified plant with complete material traceability from raw casting to packed product.

Incoming cast iron and alloy steel are tested for tensile strength, hardness, and microstructure before release to the machining line.

During manufacturing, gear profile, bore diameter, shaft runout, and surface finish are monitored continuously, and every finished unit receives a full visual inspection.

Post-production checks include dimensional verification, flow testing, pressure testing, and leakage testing to confirm each pump meets specification.

Sample pumps from each batch undergo endurance cycling, contamination testing, and thermal shock testing to prove long-term durability and stable performance.

Only pumps that clear every quality gate are released, so you receive a dependable, high-performance hydraulic component every time.

Genuine XCMG Versus Aftermarket Alternatives

Cheap aftermarket pumps often use lower-grade castings, softer gears, or inaccurate machining. Those shortcuts lead to rapid wear, leakage, and poor performance.

The genuine 803104542 is built to the exacting XCMG standards, delivering correct fit, reliable flow, and durable performance in the field.

Its precision-machined gears and robust housing provide consistent results, lowering the chance of expensive hydraulic failures and 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 global quality standards and technical support, this gear pump offers performance you can rely on in the harshest conditions.

Choose genuine XCMG for uncompromising hydraulic performance in the most demanding working environments.

Conclusion

The XCMG 803104542 Gear Pump is a vital hydraulic component for any XCMG excavator, supplying oil to multiple circuits efficiently in demanding conditions.

Its precision-engineered design, robust cast iron body, and high-quality gears deliver dependable performance in harsh environments.

By preventing hydraulic flow loss and maintaining stable pressure, this gear pump 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 803104542 Gear Pump for dependable hydraulic power and lasting operational peace of mind.

Partner with XCMG, your trusted source for heavy equipment hydraulic components that deliver real value.


OEM 803104542 – XCMG Gear Pump – the definitive hydraulic pump solution for your excavator main and auxiliary circuits. Engineered for durability, designed for reliable flow, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.

Hot Sale Genuine XCMG Excavator Parts

Recent News

2025-04-24

XCMG Markings

XCMG Markings Facebook Lin […]
2025-04-24

XCMG Right Arm Cylinder

XCMG Right Arm Cylinder Fa […]
2025-04-24

XCMG Left Arm Cylinder

XCMG Left Arm Cylinder Fac […]
2025-04-24

XCMG Working Device Piping

XCMG Working Device Piping […]
2025-04-24

XCMG Center Column

XCMG Center Column Faceboo […]
2025-04-24

XCMG Unloading Hydraulic System

XCMG Unloading Hydraulic S […]
Chat with us
Chat with us
Questions, doubts, issues? We're here to help you!
Connecting...
Please leave your inquiry and your phone. We will give you feedback within 12 hours.
Our operators are busy. Please try again later
:
:
:
:
Have you got question? Write to us! Please leave your phone or what'sApp
:
:
This chat session has ended
Was this conversation useful? Vote this chat session.
Good Bad