For Isuzu Excavator Diesel Engine Parts 4bd1 4bg1 Crankshaft Bearing And Connecting Rod Bearing

Product Details

Product Overview

This precision-engineered bearing set is specifically designed for the Isuzu 4BD1 and 4BG1 diesel engines, which are widely used in excavators, construction machinery, and industrial equipment. The set includes both main crankshaft bearings and connecting rod bearings, providing a complete replacement solution for engine overhaul or maintenance.

Manufactured to meet OEM specifications, these bearings correspond to genuine Isuzu part numbers 8-97071661-0 and 9-12271608-0. They are commonly used in excavators such as the Isuzu 4BD1 and 4BG1 powered units, including models from Hitachi, Kobelco, and Sumitomo. Please verify your engine model and existing part numbers to ensure correct fitment.

Key Features & Benefits

• OEM Specification Fitment: Manufactured to standard OEM size and tolerances, ensuring direct replacement without modification.
• Complete Bearing Set: Includes both main crankshaft bearings and connecting rod bearings for a comprehensive engine rebuild solution.
• Durable Construction: High-quality bearing material designed to withstand the high loads and temperatures of diesel engine operation.
• Reduced Friction: Precision ground surfaces minimize friction, improving engine efficiency and fuel economy.
• Reliable Performance: Tested for dimensional accuracy and material hardness to ensure long service life in demanding applications.
• Cost-Effective Solution: A high-quality aftermarket alternative to expensive OEM parts without compromising on performance.

Technical Specifications

OEM Cross-Reference

This product corresponds to the following genuine Isuzu part numbers:

• 8-97071661-0 – Main Crankshaft Bearing (Standard Size)
• 9-12271608-0 – Connecting Rod Bearing (Standard Size)

These parts are interchangeable with OEM bearings for the Isuzu 4BD1 and 4BG1 engine families. If your engine uses different suffix numbers (e.g., for oversized bearings), please confirm compatibility before ordering.

Compatibility

These bearings are commonly used for the following applications:

• Engine Models: Isuzu 4BD1, Isuzu 4BG1
• Equipment Types: Excavators, Construction Machinery, Industrial Engines, Agricultural Equipment, Generator Sets, Marine Applications, Material Handling Equipment

Note: Fitment is inferred based on engine model. Always verify your specific engine serial number and existing bearing part numbers.

Global Supply & Distribution

We offer worldwide shipping capabilities from our distribution center in Guangdong, China. Our logistics network ensures fast and reliable delivery to major ports and industrial centers across the globe.

• North America: Regular shipments to Los Angeles, Houston, New York, Toronto, and Vancouver
• Europe: Fast delivery to Rotterdam, Hamburg, Antwerp, and major inland hubs
• Asia-Pacific: Express shipping to Singapore, Tokyo, Sydney, Dubai, and Shanghai
• Middle East & Africa: Reliable service to Dubai, Jeddah, Lagos, and Johannesburg
• South America: Available to Santos, Buenos Aires, and Valparaíso

We have extensive export experience and comply with international trade regulations, providing smooth customs clearance documentation for B2B shipments.

Quality Assurance

Each bearing set undergoes rigorous quality control procedures to ensure dimensional accuracy and material integrity. Our manufacturing process includes:

• Incoming Material Inspection: Raw materials are tested for hardness and composition.
• Dimensional Verification: Precision measurement of inner and outer diameters, thickness, and roundness.
• Surface Finish Check: Microscopic inspection of bearing surfaces for defects.
• Outgoing Inspection: Video and photographic inspection available upon request.
• Machinery Test Report: Provided with each shipment.

All products are backed by a 6-month warranty against manufacturing defects. After-warranty online support is available for technical inquiries.

FAQ

Q1: Will these bearings fit my Isuzu 4BG1 engine if I have oversized journals?
A: This set is manufactured to OEM standard size specifications. If your crankshaft has been ground to an undersize (0.25mm, 0.50mm, etc.), you will need oversized bearings to match. Please check your existing bearing part numbers for suffix codes indicating size. For standard size applications, these bearings are a direct fit.

Q2: What is the difference between part numbers 8-97071661-0 and 9-12271608-0?
A: Part number 8-97071661-0 refers to the main crankshaft bearings that support the crankshaft in the engine block. Part number 9-12271608-0 refers to the connecting rod bearings that fit between the connecting rod and the crankshaft journal. This set includes both types for a complete overhaul.

Q3: How should I install these bearings and what clearance is required?
A: Installation should be performed by a qualified diesel mechanic. Ensure bearing surfaces are clean and lubricated with engine oil during assembly. The standard bearing clearance for 4BD1/4BG1 main bearings is typically 0.03-0.08mm, and for rod bearings 0.02-0.07mm. Always use a plastigauge to verify clearance after installation. Torque specifications for main bearing caps and connecting rod bolts should follow the manufacturer’s service manual for your specific engine variant.