Product Overview

This is a genuine-quality water pump pulley, engineered to meet or exceed OEM specifications for Hitachi construction machinery. As a global supplier of heavy-duty engine components, we provide reliable parts to major markets worldwide, ensuring your equipment maintains peak performance with minimal downtime.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM tolerances for a perfect fit and seamless operation within the engine’s accessory drive system.
• Superior Durability: Constructed from high-grade materials to withstand the high-stress, high-temperature environment of heavy-duty engine compartments.
• Optimal Cooling Performance: Ensures consistent and correct rotation speed for the water pump, which is critical for maintaining proper engine operating temperature.
• Vibration Reduction: Precision-balanced design minimizes vibrations, protecting the water pump bearing and extending the life of the entire cooling system.
• Direct OEM Replacement: Designed as a direct bolt-on replacement, eliminating the need for modifications and ensuring a hassle-free installation process.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM numbers:

• Hitachi: 1136411931, 1-13641193-1

Always verify the part number stamped on your original component for absolute confirmation before ordering.

Compatibility

This water pump pulley is compatible with Hitachi excavators equipped with the Isuzu 6HK1 engine. Specific machine models include:

• Hitachi ZX330-3G
• Hitachi ZX350-5G
• Hitachi ZX350H
• Hitachi ZX350H-3G

Note: Compatibility can vary by machine serial number and specific engine configuration. We recommend cross-referencing your machine’s service manual or consulting with our technical team for verification.

Global Supply & Distribution

We are a trusted international supplier with a robust logistics network. We facilitate seamless B2B transactions and export to key industrial regions globally.

• Worldwide Shipping: We ship to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Major Port Delivery: Expedited container and LCL shipments to major ports including Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
• Regional Distribution: Stock held in strategic locations to ensure fast delivery to industrial hubs and capital cities.
• Export Compliance: All shipments are prepared with complete and accurate commercial invoices, packing lists, and certificates of origin to ensure smooth customs clearance worldwide.

Quality Assurance

Our commitment to quality ensures you receive a component you can depend on for critical applications.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and quality control processes.
• Rigorous Testing: Each pulley undergoes dimensional checks, material verification, and dynamic balancing tests to ensure performance integrity.
• Warranty: Backed by a comprehensive 12-month warranty against manufacturing defects, providing peace of mind for your operations.

FAQ

Q: How can I confirm this pulley will fit my specific Hitachi ZX350-5G excavator?
A: The most reliable method is to cross-reference the part number. Locate the water pump pulley on your machine and match the number cast or stamped on it (typically 1136411931 or 1-13641193-1). You can also provide your machine’s serial number to our support team for verification.

Q: What are the signs that my water pump pulley needs replacement?
A: Common indicators include unusual whining or grinding noises from the front of the engine, visible wobble or misalignment of the pulley when the engine is running, coolant leaks originating from the water pump seal (often caused by bearing failure), or excessive play when manually trying to move the pulley.

Q: Do you provide technical support for installation?
A> Yes. We provide access to technical specifications and installation guidelines. For complex procedures, we recommend consultation with a certified heavy equipment mechanic, as proper torque specifications and alignment are crucial for the longevity of the water pump and accessory drive belt.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .