4JA1 Crankshaft 8-97249041-1 8972490411 8-94455-240-1 8944552401 for Isuzu Engine Parts

Product Details

Product Overview

This high-precision 4JA1 Crankshaft is a critical engine component specifically designed for the Isuzu 4JA1 diesel engine family. Identified by its key OEM part numbers 8-97249041-1, 8972490411, 8-94455-240-1, and 8944552401, this crankshaft ensures reliable power transmission and smooth engine operation. It is commonly utilized in a range of heavy-duty and industrial applications, including excavators, forklifts, trucks, loaders, and bulldozers.

Manufactured to meet original equipment standards, this crankshaft provides a direct replacement fit for Isuzu 4JA1 engines. Whether you are rebuilding a forklift engine or maintaining a fleet of construction machinery, this component is engineered to restore performance and extend engine life. Our stock includes options sourced from both China and Japan to meet diverse quality and budget requirements.

Key Features & Benefits

• OEM Specification Fitment: Manufactured to the exact dimensions and tolerances of the original Isuzu part, ensuring a precise drop-in replacement without modification.
• Durable Construction: Forged from high-strength alloy steel to withstand the high torsional stresses and heavy loads common in diesel engine applications.
• Precision Machined Journals: Main and connecting rod journals are ground to a superior surface finish, reducing friction and wear for extended service life.
• Rigorous Quality Control: Each crankshaft undergoes hardness testing, dimensional inspection, and dynamic balancing to guarantee reliable performance.
• Multiple OEM Cross-References: Covers a wide range of part numbers (8-97249041-1, 8972490411, 8-94455-240-1, 8944552401), simplifying inventory management for parts distributors.
• Versatile Application: Suitable for Isuzu 4JA1 engines powering forklifts, excavators, trucks, loaders, buses, and other industrial equipment.
• OEM Service Available: We can manufacture to your specific drawing or sample requirements for large-volume orders.

Technical Specifications

OEM Cross-Reference

This crankshaft is a direct replacement for the following Isuzu genuine part numbers and their equivalents:

• 8-97249041-1 (Isuzu)
• 8972490411 (Isuzu)
• 8-94455-240-1 (Isuzu)
• 8944552401 (Isuzu)

Compatibility

This crankshaft is specifically designed for the Isuzu 4JA1 diesel engine. It is commonly used for the following applications:

• Construction Machinery: Excavators, Bulldozers, Loaders
• Material Handling: Forklifts
• Commercial Vehicles: Trucks, Buses
• Industrial Equipment: Generators, Pumps

Note: Fitment may vary by specific vehicle model and year. We recommend verifying your current part number against the OEM cross-reference list above before purchasing.

Global Supply & Distribution

We offer worldwide shipping capabilities, ensuring that our Isuzu 4JA1 crankshafts reach customers in key industrial markets, including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America. Our logistics network supports fast and reliable delivery to major ports and inland industrial centers.

With extensive export experience, we handle all international trade documentation and compliance requirements. Whether you need a single unit for a repair or a bulk order for a fleet, we can provide competitive freight solutions and timely delivery to your warehouse or job site.

Quality Assurance

Each crankshaft is manufactured in ISO-certified facilities, ensuring consistent quality and adherence to international standards. Our quality assurance process includes:

• Material Verification: Chemical composition and mechanical property testing of raw materials.
• Dimensional Inspection: 100% inspection of all critical dimensions using CMM and precision gauges.
• Dynamic Balancing: Each crankshaft is dynamically balanced to minimize vibration and ensure smooth engine operation.
• Non-Destructive Testing: Magnetic particle inspection (MPI) to detect surface cracks or defects.
• Video Outgoing Inspection: We can provide video inspection of your order before shipment upon request.
• Warranty: All parts come with a standard 6-month warranty against manufacturing defects.

FAQ

Q1: How can I confirm this crankshaft fits my Isuzu engine?
A: Please check the part number stamped on your old crankshaft or your engine service manual. This crankshaft is designed for the Isuzu 4JA1 engine and directly replaces OEM numbers 8-97249041-1, 8972490411, 8-94455-240-1, and 8944552401. If your part number matches any of these, it is the correct component. If you are unsure, please contact us with your engine model and existing part number for verification.

Q2: What is the recommended installation procedure for a new crankshaft?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: cleaning the engine block thoroughly, inspecting and measuring main bearing bores, installing new main bearings with proper lubrication, carefully lowering the crankshaft into place, torquing main bearing caps to the manufacturer’s specification, and checking crankshaft end-play and rotational freedom. Always use new seals and gaskets during installation.

Q3: What maintenance is required to extend the life of this crankshaft?
A: The longevity of a crankshaft is primarily dependent on proper lubrication and engine maintenance. Use high-quality diesel engine oil that meets Isuzu specifications and change it at recommended intervals. Regularly inspect and replace oil filters to prevent contaminants from circulating. Ensure the engine cooling system is functioning correctly to prevent overheating, which can cause bearing failure and crankshaft damage. Also, address any unusual engine vibrations or knocking sounds immediately.