Komatsu 705-52-30290 Pump Assembly

Aftermarket Komatsu 705-52-30290 Hydraulic Pump

The aftermarket Komatsu 705-52-30290 hydraulic pump is a replacement gear pump designed for compatible Komatsu rigid dump truck applications. This pump is commonly listed for Komatsu HD255-5, HD325-6, HD325-6W, and HD405-6 dump trucks. It replaces Komatsu part number 705-52-30290, with the no-dash alternate part number 7055230290.

Built for heavy-duty hydraulic service, this pump helps restore proper oil flow, hydraulic response, and system performance when the original pump is worn, leaking, noisy, or no longer producing reliable pressure. It is a practical replacement option for fleet maintenance, repair shops, and equipment owners looking for a cost-effective alternative to OEM pricing.

Key Features

• Aftermarket replacement hydraulic gear pump
• Replaces Komatsu part number 705-52-30290
• Alternate part number: 7055230290
• Commonly used on Komatsu rigid dump trucks
• Supports hydraulic oil flow and system performance
• Helps address pump wear, leakage, weak hydraulic response, or pressure loss
• WQ Certified Parts — Built Better. Lasts Longer.

Common Machine Applications

This pump is commonly listed for:

• Komatsu HD255-5
• Komatsu HD325-6
• Komatsu HD325-6W
• Komatsu HD405-6

Always confirm compatibility by machine model, serial number, and existing pump tag before ordering.

Product Note

This is an aftermarket replacement part and is not manufactured by Komatsu. Komatsu part numbers are used for identification and cross-reference purposes only.