Product Description
Product Introduction
This hydraulic gear pump covers two models CBN-E32 and CBT-E532 with part numbers 500018 and 803004032. It is widely used as steering pump or auxiliary hydraulic power unit on wheel loaders and other construction equipment. It converts mechanical rotation into pressurized hydraulic fluid, delivering stable oil flow for steering and auxiliary hydraulic actions under medium and high working pressure.
The pump body adopts high-strength cast aluminum alloy, lightweight while maintaining good structural rigidity. Internal gear pairs are made of alloy steel and precision ground, achieving low internal leakage and low noise during continuous operation. The spline drive shaft undergoes heat treatment to resist torque impact under frequent start-stop cycles. The inlet and outlet ports and mounting flange follow OEM specifications, enabling simple alignment and pipeline connection. The surface treatment improves oxidation resistance, adapting to dusty and humid construction site conditions.
Manufactured strictly in accordance with OEM dimensional standards, this hydraulic gear pump can directly replace original spare parts without modification. We supply OEM equivalent and premium aftermarket quality grades. Every finished pump undergoes pressure bench test and flow inspection before shipment. Export-grade packaging and complete customs documents are available for overseas construction machinery repair shops and equipment distributors.
Key Features
- Part number: 500018, 803004032, model CBN-E32 / CBT-E532 hydraulic gear pump
- Compact aluminum alloy pump housing, light weight and good heat dissipation
- Precision alloy steel gears, low leakage and stable volumetric efficiency
- Heat-treated spline shaft, strong torque transmission capacity
- Standard mounting flange and oil port layout for easy installation
- Suitable for steering circuit and auxiliary hydraulic system of construction machinery
- OEM matched dimensions, direct replacement
- In stock, factory direct export, mixed container loading available
Why Choose Our CBN-E32 / CBT-E532 Hydraulic Pump
1. Professional Construction Machinery Hydraulic Parts Specialization
We specialize in CBN and CBT series gear pumps for wheel loaders. Our team masters pump pressure and flow parameters, providing accurate part matching and professional technical guidance for loader hydraulic overhaul projects.
2. Strict Pressure & Flow Performance Control
All gear pumps pass high-pressure bench testing. Each unit is inspected for flow rate, internal leakage, noise and shaft rotation performance, eliminating hidden risks such as insufficient oil supply, pressure drop and premature gear abrasion.
3. Multiple Quality Grades for Global Market
We offer OEM equivalent and premium aftermarket versions to meet different procurement demands. OEM equivalent products match original structural performance and dimensions completely. The aftermarket option provides cost-effective replacement for regular fleet maintenance, both with stable quality guarantee.
4. Ready Stock & Fast Shipment
We maintain abundant spot inventory of CBN-E32 / CBT-E532 hydraulic pumps. Products are sorted by part number for quick picking. We support shipment within 3–7 working days and mixed loading with other loader spare parts to cut logistics expenses.
5. Export-Grade Packaging & Full Set Documents
The hydraulic pump is filled with anti-rust oil and packed in heavy-duty wooden cases to protect the spline shaft and flange surface from collision damage during long ocean transport. Our foreign trade team provides complete customs documents including packing list, commercial invoice and inspection certificate for smooth import clearance.
6. Rich Global Export Service Experience
We serve worldwide construction machinery dealers and maintenance teams. We provide pre-sales part verification and responsive after-sales support, solving compatibility problems promptly and establishing long-term stable cooperative relationships.









