How to Identify the Correct Hydraulic Pump 705-58-44050 for Komatsu D375A Bulldozers

Choosing the correct hydraulic pump is essential for maintaining the performance and reliability of heavy equipment. For large bulldozers such as the Komatsu D375A series, using the wrong hydraulic pump can lead to installation problems, poor hydraulic performance, and unnecessary downtime.

Before purchasing a replacement hydraulic pump, it is important to confirm the machine model, part number, and pump specifications.

The Hydraulic Pump 705-58-44050 (7055844050) is designed for the following Komatsu bulldozer models:

• Komatsu D375A-3
• Komatsu D375A-3A
• Komatsu D375A-3A-01
• Komatsu D375A-3-01
• Komatsu D375A-5
• Komatsu D375A-3D
• Komatsu D375A-5D

Check the Hydraulic Pump Part Number

The easiest way to identify the correct replacement is to check the part number on the existing pump or equipment parts manual.

The replacement numbers include:

705-58-44050

Also written as:

7055844050

Because hydraulic pumps can look similar, confirming the exact part number helps avoid ordering the wrong component.

Confirm Your Machine Model

Always check your bulldozer model before replacement.

Even within the same Komatsu D375A series, different production years or configurations may use different hydraulic components.

Confirm:

• Machine model
• Serial number
• Current pump number
• Hydraulic system requirements

This simple check can prevent compatibility issues during installation.

Compare Pump Specifications

Before installation, compare the replacement pump with your original unit.

Important points include:

• Mounting flange design
• Bolt hole position
• Shaft type and dimensions
• Hydraulic ports location
• Overall pump dimensions

A correct replacement should match the original pump installation requirements.

Why Correct Hydraulic Pump Identification Matters

Selecting the correct hydraulic pump helps ensure:

✔ Smooth hydraulic operation
✔ Stable working pressure
✔ Proper installation fitment
✔ Reduced machine downtime
✔ Longer equipment service life

For heavy-duty machines like the Komatsu D375A bulldozer, hydraulic reliability directly affects productivity and operating efficiency.

Reliable Aftermarket Hydraulic Pump Solution

BeeSpareParts provides aftermarket hydraulic pump solutions for construction equipment customers worldwide.

Our replacement Hydraulic Pump 705-58-44050 / 7055844050 offers:

• Reliable replacement quality
• Competitive pricing
• Professional compatibility support
• Worldwide shipping

If you are unsure whether this hydraulic pump fits your Komatsu D375A bulldozer, contact our team with your machine model and part number. We can help confirm the correct replacement before purchase.