Product Overview

This genuine Hitachi throttle control switch box (Part Number: 4454518) is a critical electronic component for precise engine speed management in your excavator. We specialize in the global supply of authentic OEM construction machinery parts, serving major industrial markets worldwide with reliable shipping and expert logistics support.

Key Features & Benefits

• Genuine OEM Quality: Manufactured to Hitachi’s original specifications, ensuring perfect fit, function, and long-term reliability.
• Precision Engine Control: Provides accurate throttle position signaling to the engine control unit for optimal performance and fuel efficiency.
• Robust Construction: Built to withstand the harsh vibrations, dust, and temperature extremes of construction site environments.
• Direct Plug-and-Play Installation: Designed as an exact replacement, eliminating the need for modifications and reducing equipment downtime.
• Enhanced Machine Responsiveness: Restores precise control over engine RPMs, crucial for smooth and efficient digging and lifting operations.

Technical Specifications

OEM Cross-Reference

This genuine part is supplied under its primary Hitachi OEM number. For verification, always cross-reference with your machine’s serial number or existing component.

• Hitachi: 4454518

Compatibility

This throttle control switch box is designed as a genuine replacement part for various Hitachi excavator models. It is crucial to verify compatibility using your machine’s model and serial number. Typically fits a range of Hitachi Zaxis and Dash-3/Dash-5 series excavators.

Global Supply & Distribution

We are a trusted B2B supplier for construction and mining fleets worldwide. Our streamlined export process ensures timely delivery to major global markets.

• Worldwide Shipping: We ship via air and sea freight to all major ports and industrial hubs in North America (USA, Canada), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), and the Middle East (UAE, Saudi Arabia).
• Fast Logistics: Consolidated container loads and established express courier partnerships ensure cost-effective and reliable delivery to your workshop or depot.
• Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to full international trade compliance standards for smooth customs clearance.

Quality Assurance

Every part is sourced to meet the highest standards of quality and performance expected by professional equipment managers.

• Authenticity Guarantee: Supplied as genuine Hitachi OEM component, not an aftermarket substitute.
• Rigorous Inspection: Each unit undergoes visual and functional checks prior to shipment to ensure it meets operational specifications.
• Reliability: Backed by our supplier warranty, guaranteeing the part is free from manufacturing defects.

FAQ

Q1: How do I confirm this part is compatible with my specific Hitachi excavator?
A1: The surest method is to use your machine’s serial number (S/N) to identify the correct part via the official Hitachi parts catalog. You can also compare the physical shape and connector of your failed unit with the images provided. Providing your excavator model (e.g., ZX200-3, ZX350LC-5) to our sales team allows for pre-shipment verification.

Q2: What are the symptoms of a failing throttle control switch box?
A2: Common failure signs include unresponsive or erratic engine speed control, the engine not reaching full RPM, intermittent power loss, or diagnostic trouble codes (DTCs) related to throttle position sensor circuits. Replacing a faulty switch restores precise throttle response.

Q3: Is professional installation required for this part?
A3> While it is a direct replacement, installation involves the electrical system of heavy machinery. We recommend installation by a qualified technician who can safely disconnect the battery, replace the component, and potentially recalibrate the system, ensuring safe and correct operation.

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 .