
Product Overview
This genuine Generator Adjusting Screw (Adjust Bolt) is a critical component for maintaining precise generator alignment and tension in Isuzu industrial and construction equipment engines. We supply this high-quality OEM-specification part to a global B2B clientele, with major markets including North America, Europe, the Asia-Pacific region, and the Middle East. Our logistics network ensures reliable delivery to key industrial hubs and ports worldwide.
Key Features & Benefits
- OEM Quality: Manufactured to original Isuzu specifications for perfect fit, function, and durability.
- Precision Engineering: Ensures accurate generator alignment, preventing belt slippage and premature wear.
- High-Strength Material: Constructed from robust materials to withstand constant tension and engine vibration.
- Reliable Performance: Maintains optimal generator drive tension for consistent electrical output and engine performance.
- Direct Replacement: Designed as a direct bolt-on component, simplifying maintenance and repair procedures.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 109009-1141 |
| Alternative Part Number | 1-09009114-1 / 1090091141 |
| Component Type | Generator Adjusting Screw / Adjust Bolt |
| Compatible Engine Models | Isuzu 4HK1, 6HK1, 6BG1 |
| Application | Generator Drive Tension Adjustment |
| Condition | New, Genuine |
OEM Cross-Reference
This part is a genuine Isuzu component. The following part numbers are identical and fully cross-referenced:
- Isuzu: 109009-1141
- Isuzu: 1-09009114-1
- Isuzu: 1090091141
Compatibility
This adjusting screw is compatible with equipment utilizing the specified Isuzu industrial engines, including but not limited to:
- Engine Models: Isuzu 4HK1, Isuzu 6HK1, Isuzu 6BG1.
- Machine Applications: Commonly found in Hitachi construction machinery models such as the ZX200-3, ZX240-3, and ZX270-3 excavators, as well as various generators and industrial power units powered by these engines.
- Always verify your engine model and existing part number before ordering to ensure correct fitment.
Global Supply & Distribution
We are a trusted international supplier for heavy-duty engine parts. Our operations are optimized for global B2B trade:
- Worldwide Shipping: We export via air and sea freight to all major markets, including the USA, Canada, Germany, UAE, Australia, and Japan.
- Fast Delivery: Consolidated shipments ensure cost-effective and timely delivery to major ports and logistics centers.
- Export Expertise: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is prepared professionally for smooth customs clearance.
- Regional Support: We understand the specific part number conventions and compliance needs of different regional markets.
Quality Assurance
- Genuine Part: This is a genuine Isuzu component, guaranteeing original equipment quality and performance.
- Rigorous Inspection: Each part undergoes visual and dimensional inspection to confirm it meets OEM specifications.
- Secure Packaging: Components are packaged to prevent damage during international transit.
- Warranty: Backed by a standard supplier warranty against manufacturing defects. Contact us for specific warranty terms.
FAQ
Q1: How do I confirm this is the correct adjusting screw for my Hitachi excavator?
A1: The most reliable method is to cross-reference the part number stamped on your existing component. This screw is used in the generator mounting/tensioning bracket on machines with Isuzu 4HK1, 6HK1, or 6BG1 engines. Verify your machine’s model (e.g., ZX240-3) and engine serial number for absolute certainty.
Q2: Is special tooling required for installation?
A2: Installation typically requires standard metric hand tools. The procedure involves loosening the generator mounting bolts, adjusting this screw to achieve the correct belt tension (as per the service manual specification), and then re-tightening the mounting bolts. A belt tension gauge is recommended for precise adjustment.
Q3: What are the consequences of using a worn or incorrect adjusting screw?
A3: A faulty adjusting screw can lead to incorrect generator belt tension. This can cause belt squeal, rapid belt wear, bearing failure in the generator or crankshaft pulley, and ultimately lead to a loss of battery charging and electrical system failure.
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 .