4HG1T Main Bearing 0.25 8-97045911-1 Isuzu Engine Parts for Excavator & Forklift

Product Details

Product Overview

This is a precision-engineered Main Bearing designed specifically for the Isuzu 4HG1T diesel engine, identified by the OEM part number 8-97045911-1. As a critical component within the engine’s rotating assembly, this main bearing supports the crankshaft, ensuring smooth rotation and minimal friction under heavy load conditions.

This specific bearing is supplied in a 0.25mm undersize (0.25 OS) specification, which is typically required when the crankshaft journal has been ground down during an engine rebuild. It is a direct replacement part commonly used in a variety of heavy equipment applications, including forklifts, excavators, trucks, loaders, and bulldozers.

Manufactured under the brand, this component is built to meet or exceed OEM specifications, offering a reliable solution for engine overhaul and maintenance needs. Please verify your engine model and required bearing size before purchase to ensure a proper fit.

Key Features & Benefits

• Precise Fitment: Manufactured to exact OEM tolerances for the 4HG1T engine, ensuring seamless installation and reliable performance.
• Durable Construction: Made from high-strength, wear-resistant materials to withstand the high pressures and temperatures of diesel engine operation.
• Oversize Specification: Specifically designed as a 0.25mm oversize (0.25) bearing for use with reground crankshaft journals, providing the correct oil clearance.
• Enhanced Engine Life: Reduces friction and wear on the crankshaft, extending the overall lifespan of the engine.
• OEM Cross-Reference: Directly replaces Isuzu part number 8-97045911-1, guaranteeing a perfect match for your engine rebuild kit.
• Rigorous Testing: Each batch undergoes outgoing inspection and machinery test reporting to ensure quality and performance standards.

Technical Specifications

OEM Cross-Reference

This main bearing is the direct replacement for the following Isuzu genuine part number:

• Isuzu OEM: 8-97045911-1

Note: This cross-reference is provided for identification purposes. is not affiliated with Isuzu Motors Limited.

Compatibility

This part is specifically designed for the Isuzu 4HG1T diesel engine. It is commonly used for the following heavy equipment and vehicle applications:

• Excavators
• Forklifts
• Trucks
• Loaders
• Bulldozers
• Buses

Fitment is inferred based on engine model. Please confirm the engine model and required bearing size (0.25 OS) in your specific equipment before ordering.

Global Supply & Distribution

We are a dedicated supplier of Isuzu engine parts with a strong focus on the international B2B market. Our global supply chain ensures fast and reliable delivery to major ports and industrial centers worldwide.

We serve a diverse range of markets including North America, South America, Europe, Southeast Asia, the Middle East, Africa, and Oceania. Whether you are a parts distributor in Dubai, a forklift repair shop in Texas, or an excavator fleet manager in Thailand, we can provide a cost-effective logistics solution.

Our export experience includes handling bulk orders, consolidated shipping, and customs documentation for smooth international trade compliance. We are committed to being your trusted partner for aftermarket Isuzu engine components.

Quality Assurance

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities, ensuring consistent quality and dimensional accuracy.
• Inspection: We provide video outgoing inspection and machinery test reports for your verification, ensuring the parts meet the required specifications before shipment.
• Warranty: We offer a 6-month warranty against manufacturing defects. This gives you confidence in the long-term reliability of the part.
• Packaging: Parts are securely packed in plastic bags, boxes, and cartons to prevent damage during transit.

FAQ

Q: How do I know if I need a 0.25 oversize main bearing for my 4HG1T engine?
A: A 0.25 oversize bearing is typically required when the crankshaft has been reground to a smaller diameter during an engine rebuild. You must measure the reground crankshaft journal diameter with a micrometer. If the journal has been ground down by 0.25mm, this bearing is the correct size. Using a standard size bearing on a reground journal will result in excessive oil clearance and potential engine failure.

Q: What is the installation procedure for this main bearing?
A: Installation should be performed by a qualified diesel mechanic. The process involves removing the old bearing shells, thoroughly cleaning the bearing saddles and caps, and installing the new shells dry (without grease). It is critical to apply engine assembly lube to the bearing surface and the crankshaft journal. Torque all main bearing cap bolts to the manufacturer’s specification using a torque wrench in the correct sequence. Always check the oil clearance using Plastigage to ensure it is within spec.

Q: What other engine parts are available for the 4HG1T engine?
A: As a specialist in Isuzu engines, we offer a complete range of engine parts for the 4HG1T, including piston rings, cylinder liners, gasket sets, oil pumps, and connecting rod bearings. Please contact us for a full engine overhaul kit or specific components you require for your rebuild project.