129327-42100 PUMP GP-ENGINE WATER | REPLACEMENT FOR KOMATSU

129327-42100 12932742100

  • Application: PC20-3, PC20-5, PC20-6 PC30-1, PC30-3, PC30-5, PC30-6 PC38UU-1
  • Customization: labels and logo
  • Delivery: 7-15 working days
  • Certifications: ISO 9001/ITS/CE

Product weight: approx. 1.8 kg – 2.0 kg
Packaging dimensions: approx. 350 x 200 x 200 mm

The HYDSTAR® Water Pump helps protect the engine from overheating by maintaining efficient and continuous coolant circulation. For engine repair, overhaul, or replacement, HYDSTAR® water pumps provide a reliable solution for demanding operating conditions.

Our water pumps feature a polished, corrosion-resistant stainless steel shaft, a durable impeller designed to deliver excellent coolant flow, and a hardened bearing retaining ring for improved bearing stability. Enhanced oil and coolant seals help prevent leakage, reduce wear, and extend service life.

Each HYDSTAR® Water Pump is manufactured under strict quality standards and carefully tested to ensure reliable performance, durability, and consistent cooling efficiency. Designed for a wide range of heavy-duty equipment and operating conditions, HYDSTAR® water pumps help support longer component life, efficient engine operation, and dependable overall performance.

Komatsu Mini Excavators:
PC20 Series: PC20-3, PC20-5, PC20-6
PC30 Series: PC30-1, PC30-3, PC30-5, PC30-6
PC38 Series: PC38UU-1
Wheeled Excavator: PW30-1
Komatsu Loader: WA30-2

Product Introduction

Efficient Cooling · Durable Construction · Reliable Engine Protection


The HYDSTAR® Water Pump is engineered to maintain efficient coolant circulation and help prevent engine overheating, providing reliable protection and consistent cooling performance under demanding operating conditions.

Designed for engine repair, replacement, and overhaul applications, HYDSTAR® water pumps feature a corrosion-resistant polished stainless steel shaft, a durable impeller engineered for efficient coolant flow, and a hardened bearing retaining ring for improved bearing stability. Enhanced oil and coolant seals help reduce leakage and extend service life.

Manufactured under strict quality control and tested to HYDSTAR® standards, each water pump is designed to deliver dependable cooling performance, excellent durability, and reliable operation in demanding equipment applications.

Key Features


Efficient Coolant Flow — Durable impeller design provides consistent coolant circulation for effective engine cooling.
Enhanced Sealing — Improved oil and coolant seals help prevent leakage and extend service life.
Corrosion-Resistant Shaft — Polished stainless steel shaft provides excellent resistance to corrosion and wear.
Improved Bearing Stability — Hardened bearing retaining ring helps maintain secure and reliable bearing positioning.
Reliable Performance — Precision-manufactured and quality-tested for dependable operation under demanding working conditions.
Long Service Life — Robust materials and optimized construction provide excellent durability for heavy-duty applications.

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