
Product Overview
This genuine-quality Rocker Arm Assembly is engineered for Isuzu 4HK1 diesel engines, a cornerstone of heavy-duty machinery worldwide. As a leading global supplier, we specialize in the distribution of critical engine components to major industrial markets, ensuring reliable performance for construction, mining, and power generation equipment.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for perfect fitment and reliable valve actuation.
- High-Durability Construction: Made from premium-grade materials to withstand high-stress, high-temperature engine environments.
- Optimized Performance: Ensures precise valve timing and lift, contributing to optimal engine power, fuel efficiency, and reduced emissions.
- Extended Service Life: Designed for longevity, minimizing downtime and reducing total cost of ownership for your machinery fleet.
- Rigorously Tested: Each assembly undergoes stringent quality checks to guarantee performance and reliability under load.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Rocker Arm Assembly |
| Primary Part Number | 8973064213 |
| Compatible Engine Model | Isuzu 4HK1 |
| Application | Heavy-Duty Diesel Engine |
| Condition | New, Aftermarket (OEM-Quality) |
OEM Cross-Reference
This assembly is a direct replacement for the following OEM and alternative part numbers:
- 8973064213 (Primary Isuzu Number)
- 8-97306421-3
- 8-97306424-5
Compatibility
This rocker arm assembly is designed specifically for the Isuzu 4HK1-TC and 4HK1-XS series diesel engines. These engines are commonly found in:
- Isuzu Excavators (e.g., models from the ISUZI IS- series)
- Heavy-Duty Construction Machinery
- Industrial Power Units
- Generator Sets
Please verify your engine’s model and serial number to ensure correct application.
Global Supply & Distribution
We are a trusted partner for B2B clients across the globe, offering seamless logistics and reliable supply chains.
- Worldwide Shipping: We export to all major industrial regions, including North America, Europe, the Asia-Pacific, the Middle East, and Africa.
- Fast Delivery Network: Efficient shipping to major ports and industrial hubs (e.g., Rotterdam, Los Angeles, Singapore, Dubai) ensures you receive critical parts without delay.
- Export Expertise: Comprehensive experience in international trade, documentation, and compliance with global customs regulations.
- Bulk & Wholesale Focus: Competitive pricing and dedicated support for distributors, workshops, and large fleet operators.
Quality Assurance
Our commitment to quality ensures you receive parts that meet the highest standards for performance and reliability.
- Manufacturing Standards: Produced in ISO-certified facilities using advanced manufacturing techniques.
- Stringent Testing: Components undergo dimensional inspection, material analysis, and functional testing to validate performance against OEM benchmarks.
- Warranty: Backed by a standard warranty, covering defects in materials and workmanship. Contact us for specific warranty terms applicable to your region.
FAQ
Q: How do I confirm this part fits my specific Isuzu 4HK1 engine?
A: The most reliable method is to cross-reference the part number stamped on your existing rocker arm assembly with our listed OEM numbers (8973064213, 8-97306421-3, 8-97306424-5). Also, verify your engine’s complete model designation and serial number.
Q: What is the recommended maintenance interval for inspecting or replacing rocker arm assemblies?
A> Inspection should align with major engine service intervals, typically every 5,000-10,000 operating hours, or as specified in your equipment’s service manual. Look for signs of excessive wear on the pivot points, roller, or valve contact pad.
Q: Do you provide technical support for installation?
A> Yes. We can supply basic installation guidelines and torque specifications. For complex engine work, we always recommend consultation with or service by a certified heavy-duty diesel mechanic to ensure proper installation and valve adjustment.
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 .