8-97306424-3 Valve Rocker Arm 4HK1 Engine for Hitachi ZX240-3 ZX330 ZX360 Excavator

Product Details

Product Overview

This genuine 8-97306424-3 Valve Rocker Arm is a precision engine component specifically designed for the Isuzu 4HK1 diesel engine platform. As a critical part of the valve train assembly, this rocker arm ensures precise actuation of engine valves, directly impacting combustion efficiency, power output, and overall engine reliability.

Commonly used for Hitachi ZX240-3, ZX330, and ZX360 series excavators, this component is sourced with a focus on durability and exact OEM specifications. The 8-97306424-3 part number ensures correct identification for maintenance and overhaul projects, helping reduce downtime in demanding construction and mining applications.

This genuine condition part offers a direct replacement solution for technicians and fleet managers seeking long-lasting performance from their heavy equipment engines.

Key Features & Benefits

• Precise OEM Fitment: Manufactured to exact Isuzu 4HK1 specifications, ensuring seamless installation without modifications.
• Durable Construction: Built from high-strength materials to withstand the continuous cycling and high temperatures within the valve train.
• Reduced Engine Wear: Proper rocker arm geometry minimizes side loading on valve stems, extending the life of valves and guides.
• Consistent Valve Timing: Maintains accurate valve lift and duration, critical for maintaining engine power and fuel efficiency.
• Genuine Condition Assurance: Sourced as a genuine component, providing confidence in metallurgy and dimensional accuracy.
• Minimized Downtime: Direct replacement part for common Hitachi excavator models, supporting rapid field repairs.

Technical Specifications

OEM Cross-Reference

This part is identified by the following OEM and reference numbers. Always verify compatibility with your specific engine serial number.

• Isuzu OEM Part Number: 8-97306424-3
• Alternative Reference: 8973064243

Note: This rocker arm is specific to the 4HK1 engine platform. Always cross-reference with your engine serial number for absolute fitment confirmation.

Compatibility

This 8-97306424-3 valve rocker arm is commonly used for the following equipment and engine configurations:

• Engine: Isuzu 4HK1 (4-cylinder, direct injection diesel)
• Excavator Models: Hitachi ZX240-3, ZX330, ZX360 series

Fitment is inferred based on common OEM applications. Please verify with your equipment’s parts manual or engine serial number before purchase.

Global Supply & Distribution

We serve a global network of heavy equipment dealers, repair shops, and fleet operators. Our logistics capabilities ensure efficient delivery to major industrial centers worldwide.

• North America: Fast shipping to ports like Los Angeles, Houston, and New York, with inland distribution to construction hubs.
• Europe: Reliable delivery to Rotterdam, Hamburg, and Antwerp for distribution across the EU.
• Asia-Pacific: Direct shipping to Singapore, Shanghai, Dubai, and major Australian ports for mining and infrastructure sectors.
• Middle East & Africa: Service to Jebel Ali, Dammam, and Durban for oil & gas and mining operations.
• South America: Coverage to Santos, Callao, and Buenos Aires for growing construction markets.

We maintain international trade compliance and offer flexible shipping options, including express courier services for urgent breakdowns.

Quality Assurance

Quality and reliability are paramount for engine components that operate under extreme conditions.

• Manufacturing Standards: Components are manufactured to meet or exceed original OEM specifications.
• Material Integrity: All parts undergo material composition analysis to ensure hardness and durability.
• Dimensional Inspection: Critical dimensions such as bore diameter, arm length, and contact pad profile are verified.
• Warranty Coverage: This part is backed by a 3-month warranty against manufacturing defects.
• After-Warranty Support: We provide video technical support to assist with installation queries and troubleshooting.

FAQ

Q1: How can I confirm this 8-97306424-3 rocker arm fits my Hitachi ZX330?
A: First, verify your engine model is the Isuzu 4HK1. Then, visually compare your existing rocker arm with the images provided. For absolute certainty, check the casting number on your old part or consult your Hitachi parts catalog for the ZX330 engine section. We recommend confirming fitment before installation.

Q2: What are the common symptoms of a worn valve rocker arm on a 4HK1 engine?
A: Common indicators include a noticeable ticking or tapping noise from the valve cover area, reduced engine power, rough idling, or increased fuel consumption. In severe cases, a worn rocker arm can cause valve timing issues leading to hard starting. If you suspect wear, inspect the rocker arm contact pad and the valve stem tip for scoring or pitting.

Q3: Do I need to replace the rocker arm shaft or adjust valves when installing this part?
A: It is highly recommended to inspect the rocker arm shaft for wear or scoring when replacing a rocker arm, as a worn shaft can accelerate wear on a new part. Additionally, after installing a new rocker arm, you must perform a valve clearance adjustment according to the 4HK1 engine service manual specifications to ensure proper engine operation and prevent premature component failure. Always use a new gasket for the valve cover.