4HK1 Common Rail Assembly for Hitachi ZX200-3 Excavator 8973060634 8-97306063-4

Product Details

Product Overview

This is a genuine 4HK1 Common Rail Assembly, specifically designed for the Isuzu 4HK1 diesel engine commonly used in Hitachi ZX200-3 excavators. The unit carries the critical part numbers 8973060634 and 8-97306063-4, ensuring precise identification for your repair or replacement needs.

As the central component of the high-pressure fuel injection system, this common rail assembly is essential for delivering fuel at the correct pressure and timing to the injectors. It is a direct-fit, genuine part sourced from Japan, offering a reliable solution for restoring the performance and fuel efficiency of your excavator’s engine.

Please verify your engine model (4HK1) and machine application (ZX200-3) against the part numbers provided to ensure complete compatibility before purchase.

Key Features & Benefits

• Genuine OEM Quality: This is a genuine part, not an aftermarket alternative, guaranteeing factory specifications for fit, function, and long-term durability.
• Precise Part Identification: Marked with OEM numbers 8973060634 and 8-97306063-4, eliminating guesswork and ensuring you receive the correct component for your 4HK1 engine.
• Restored Engine Performance: A properly functioning common rail assembly is critical for maintaining optimal fuel injection pressure, leading to improved engine power, smoother operation, and reduced emissions.
• Long-Lasting Durability: Built to withstand the extreme pressures and harsh operating conditions of heavy-duty excavator applications, providing a long service life.
• Direct Fit Application: Designed as a direct replacement for the Hitachi ZX200-3 excavator, minimizing installation complexity and downtime.
• Japan Sourcing: Sourced from Japan, a country renowned for its high standards in diesel engine component manufacturing.
• Low Minimum Order Quantity (MOQ): Available with an MOQ of just 1 piece, making it ideal for single-machine repairs without the need for bulk purchasing.

Technical Specifications

OEM Cross-Reference

This common rail assembly is a direct replacement for the following original equipment manufacturer (OEM) numbers. Always verify your existing part number to confirm fitment.

• Isuzu / Hitachi OEM: 8973060634
• Isuzu / Hitachi OEM (Alternate Format): 8-97306063-4

Compatibility

This part is designed for use in the following applications. Fitment is inferred based on the part number and engine model provided.

• Engine: Isuzu 4HK1 Diesel Engine
• Excavator Model: Hitachi ZX200-3
• System: High-Pressure Common Rail Fuel Injection System

Note: This assembly is a critical fuel system component. We recommend consulting your machine’s parts manual or a qualified technician to confirm compatibility with your specific serial number range.

Global Supply & Distribution

We offer worldwide shipping for this and all our diesel engine parts. Our logistics network is capable of delivering to major ports and industrial centers across the globe.

• Major Markets Served: North America, Europe (EU), Asia-Pacific, Middle East (GCC), Africa, and South America.
• Shipping Speed: Fast dispatch upon payment receipt. We offer various shipping options including express courier (DHL, FedEx, UPS) for urgent orders and sea freight for bulk purchases.
• Export Experience: We are experienced in international trade and handle all necessary customs documentation (commercial invoice, packing list) to ensure smooth delivery.
• Packaging: Parts are securely packaged to prevent damage during international transit.

Quality Assurance

We stand behind the quality of our genuine parts. This common rail assembly is sourced directly from Japan, ensuring it meets the original manufacturing specifications for performance and durability.

• Condition: Guaranteed genuine, new, and unused.
• Warranty: This part is covered by a 3-month warranty against manufacturing defects.
• After-Sales Support: We provide video technical support to assist with installation questions and troubleshooting.
• Testing: Genuine parts undergo rigorous quality control testing by the manufacturer to ensure they meet pressure and flow specifications.

FAQ

Q1: How can I be sure this common rail assembly will fit my Hitachi ZX200-3?
A: First, verify the engine in your machine is the Isuzu 4HK1. Second, locate the part number on your existing common rail assembly. If it matches either 8973060634 or 8-97306063-4, this part is the direct replacement. If you are unsure, please contact us with your machine’s serial number for cross-verification.

Q2: What is the recommended procedure for installing a common rail assembly?
A: Installation should be performed by a qualified diesel mechanic. The fuel system must be clean and free of contamination. It is critical to replace all related seals and O-rings, and to torque the assembly mounting bolts to the manufacturer’s specifications. After installation, the fuel system must be primed and checked for leaks before starting the engine.

Q3: What should I check if my engine has low power after replacing the common rail?
A: While the common rail assembly is a key component, low power can have multiple causes. First, check for fuel supply issues (clogged filters, low transfer pump pressure). Second, ensure the rail pressure sensor and fuel pressure regulator are functioning correctly. Third, inspect the injectors for proper operation. If the rail itself is installed correctly and the system is primed, the issue is likely elsewhere in the fuel system or engine.