Isuzu Excavator Engine Crankshaft 4BG1 8-97112981-2 8-97112-981-2 New Steel For Excavator

Product Details

Product Overview

This is a brand new, high-performance engine crankshaft specifically designed for the Isuzu 4BG1 diesel engine. The crankshaft is a critical rotating component that converts the linear motion of the pistons into rotational torque, directly impacting engine power, smoothness, and longevity. Identified by the genuine OEM part numbers 8-97112981-2 and 8-97112-981-2, this component is manufactured to meet rigorous OEM specifications for fit, balance, and durability.

Commonly used in a wide range of heavy construction and industrial equipment, this crankshaft serves as a direct replacement for worn or damaged units in Isuzu-powered excavators, loaders, bulldozers, and other machinery. While primarily designed for the 4BG1 engine model, professional mechanics should always verify compatibility with the specific engine serial number to ensure a perfect match.

Key Features & Benefits

• OEM-Grade Specification: Manufactured to the exact dimensions and material standards of the original Isuzu part (8-97112981-2), ensuring a precise fit without modification.
• High-Strength Construction: Made from robust steel for superior fatigue resistance and the ability to withstand the high torsional stresses of diesel engine operation.
• Enhanced Engine Performance: A precision-ground crankshaft ensures smooth rotation, reduces vibration, and helps restore the engine to its original power output and fuel efficiency.
• Extended Service Life: Designed for long-term reliability in demanding construction environments, reducing the frequency of costly engine overhauls.
• Direct Replacement: A “drop-in” ready component that simplifies the rebuilding process, saving valuable shop time and labor costs.
• Rigorous Quality Control: Each unit undergoes outgoing inspection and machinery test reports to verify dimensional accuracy and structural integrity.

Technical Specifications

OEM Cross-Reference

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

• 8-97112981-2
• 8-97112-981-2

Compatibility

This crankshaft is specifically designed for the Isuzu 4BG1 diesel engine. Based on this engine model, it is commonly used for repair and replacement in the following applications:

• Excavators
• Wheel Loaders
• Forklifts
• Bulldozers
• Buses & Trucks
• Other Industrial Machinery

Note: Compatibility is based on the engine model. Please verify your specific engine serial number and existing part before ordering.

Global Supply & Distribution

We offer reliable worldwide shipping from our strategic distribution hubs in Guangdong and Guizhou, China. Our logistics network ensures fast and secure delivery to major ports and industrial centers across the globe, including:

• North America: Los Angeles, Houston, Toronto, Vancouver
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Dubai, Sydney, Busan
• Middle East & Africa: Jebel Ali, Durban, Lagos, Jeddah
• South America: Santos, Callao, Buenos Aires

We have extensive experience in international trade, handling all necessary export documentation and customs compliance to ensure a smooth transaction for B2B buyers worldwide.

Quality Assurance

Every crankshaft is produced under strict quality control protocols in ISO-certified facilities. We prioritize performance and reliability, matching the original equipment manufacturer’s standards. Key quality measures include:

• Dimensional Inspection: All critical journal diameters, pin sizes, and thrust faces are checked for precision.
• Material Verification: Steel composition is tested for strength and durability.
• Dynamic Balancing: Each crankshaft is balanced to minimize vibration during high-speed operation.
• Machinery Test Report Provided: Confirming the part meets functional specifications.
• 6-Month Warranty: We stand behind the quality of our parts, offering a warranty against manufacturing defects.

FAQ

Q: Is this crankshaft a direct fit for my Isuzu 4BG1 engine?
A: Yes, this crankshaft (OEM 8-97112981-2) is designed as a direct replacement for the standard Isuzu 4BG1 engine. However, we strongly recommend verifying your engine’s serial number and the condition of your connecting rods and bearings, as crankshafts can have different journal sizes (standard, 0.25 under, 0.50 under) for rebuild applications. This unit is standard OEM size.

Q: What other parts should I replace when installing a new crankshaft?
A: For a reliable engine rebuild, it is highly advisable to replace the main bearings, connecting rod bearings, thrust washers, and rear main oil seal at the same time. Using a new crankshaft with old bearings can lead to incorrect oil clearances and premature failure. We recommend purchasing a full engine rebuild kit for the 4BG1 to ensure all wear components are matched.

Q: How should I store this crankshaft before installation?
A: To prevent corrosion and damage, store the crankshaft in its original packaging in a clean, dry indoor environment. Keep it away from moisture, extreme temperature changes, and heavy objects that could cause impact. Before installation, clean the protective oil coating off the journals and inspect all surfaces for any damage incurred during shipping.