5-12310-161-0 Engine Crankshaft, Isuzu 4BC2 Engine Core Component
The crankshaft (5-12310-161-0) is the core rotating component of the Isuzu 4BC2 4-cylinder diesel engine, responsible for converting the reciprocating motion of the piston into rotational power output. The crankshaft is precision-cast from high-strength steel and machined through turning, grinding, and heat treatment processes. Using this crankshaft effectively improves engine running smoothness, reduces vibration and abnormal wear, and extends engine life.
| Part Number |
5-12310-161-0 |
| Type |
Crankshaft |
| Applicable Model |
Isuzu 4BC2 / 4BC1 Engine |
| Number of Cylinders |
4 |
| Material |
High-strength steel |
| Replaceable Part Numbers |
5-12310-161-0, 5123101610 |
| Machining Process |
CNC machining, heat treatment, grinding, balancing test |
| Function |
Converts the reciprocating motion of the piston into rotational power, bearing the engine load and ensuring smooth operation. |
Features and Advantages
High-Precision Manufacturing: CNC precision machining and balancing testing ensure smooth crankshaft rotation and reduce engine vibration.
Stable Power Output: Ensures efficient combustion, reduces mechanical wear, and improves engine performance.
Wide Applications: Suitable for construction machinery, agricultural machinery, light trucks, and power generation equipment.
Maintenance-Friendly: Easy installation facilitates daily inspection and maintenance, reducing downtime risks.
5-12310-161-0 Overall View of the Crankshaft

129908-77010 Front View of Starter Motor

Close-up of crankshaft and connecting rod mating joint

4BC2 Close-up of crankshaft main journal

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Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Crankshaft compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.