
Product Overview
This high-quality Isuzu 4BG1 Crankshaft Pulley is engineered for durability and precise performance in demanding industrial and construction applications. As a trusted global supplier, we provide this critical engine component to B2B clients worldwide, ensuring reliable operation for excavators and other heavy machinery. We specialize in serving major industrial markets with efficient logistics and export compliance.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and optimal balance, reducing vibration and wear on the crankshaft and accessory drive system.
- High-Durability Construction: Made from robust materials to withstand the high-torque, high-vibration environment of diesel engines, ensuring long service life.
- Ensures Proper Belt Alignment: Critical for the correct operation of ancillary components like the alternator, water pump, and hydraulic pumps, preventing premature belt failure.
- Maintains Engine Timing Integrity: A true-running pulley is essential for engines where the crankshaft position sensor reads from the pulley, ensuring accurate engine management.
- Cost-Effective Replacement: Provides OEM-level quality and performance as a direct replacement part, minimizing machinery downtime and maintenance costs.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 8-97172040-0 |
| OEM / Brand | Isuzu |
| Engine Model | 4BG1 |
| Application | Crankshaft Pulley / Vibration Damper |
| Primary Use | Excavators & Industrial Equipment |
| Material | High-Strength Steel / Rubber Composite (Damper) | Condition | New, Aftermarket Replacement |
OEM Cross-Reference
Primary Part Number: 8-97172040-0
This part is a direct replacement for the original Isuzu component. Always verify the part number stamped on your original pulley for confirmation.
Compatibility
This crankshaft pulley is designed specifically for the Isuzu 4BG1 diesel engine. This engine is commonly found in:
- Various Excavator Models (e.g., Hitachi, Kobelco, others utilizing the Isuzu 4BG1 power plant)
- Industrial Generators & Power Units
- Construction Machinery
Note: Compatibility is engine-model specific. Always confirm your engine model and existing part number before ordering.
Global Supply & Distribution
We are a professional exporter of heavy-duty engine components with a established supply chain to key global markets. Our capabilities include:
- Worldwide Shipping: Reliable delivery to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
- Major Port Access: Efficient logistics for fast shipment to major industrial hubs and ports including Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg.
- B2B Focus: Dedicated support for wholesalers, distributors, and large-scale repair facilities.
- Trade Compliance: All shipments are prepared with complete and accurate commercial documentation (invoice, packing list, certificate of origin) for smooth customs clearance.
Quality Assurance
- Manufacturing Standard: Produced in ISO-certified facilities using precision machining and quality-controlled materials.
- Rigorous Testing: Components undergo dimensional checks, balance testing, and material verification to ensure they meet or exceed performance specifications.
- Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
FAQ
Q1: How do I confirm this pulley will fit my Isuzu 4BG1 engine?
A1: The surest method is to match the part number. Locate the part number stamped or labeled on your existing crankshaft pulley. It should read 8-97172040-0. Also, verify your engine’s model plate confirms it is a 4BG1.
Q2: Is this a direct bolt-on replacement, or are special tools required?
A2: This is a direct OEM-style replacement. Installation typically requires standard socket wrenches and a torque wrench to apply the correct specification to the crankshaft bolt. For engines with a harmonic balancer function, ensure proper alignment of any timing marks.
Q3: What are the signs that my crankshaft pulley needs replacement?
A3: Common indicators include visible cracks or damage to the pulley, separation of the rubber damping ring, excessive wobble while the engine is running, chirping or squealing from the accessory drive belt that persists after belt replacement, or visible misalignment of the drive belts.
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 .