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Product Details
Product Overview
This high-precision Isuzu 4BG1 Connecting Rod Bearing (Standard Size) is a critical bottom end engine component designed for optimal crankshaft support and reduced friction. Manufactured to strict OEM specifications, this bearing (Part No. 9-12271608-0) is essential for maintaining proper oil clearance and ensuring the longevity of your Isuzu 4BG1 diesel engine. We supply this component globally to North America, Europe, Asia-Pacific, the Middle East, and Africa, supporting heavy equipment, industrial machinery, and marine applications.
Key Features & Benefits
Precision Engineering: Manufactured to exact OEM tolerances for a perfect fit and consistent oil film thickness.
Superior Material: Constructed from high-strength steel with a specialized aluminum alloy or copper-lead lining for exceptional wear resistance and fatigue strength.
Reduced Friction: Optimized surface finish minimizes friction between the connecting rod and crankshaft journal, improving engine efficiency.
Extended Engine Life: Provides reliable protection against bearing seizure and premature wear, critical for heavy-duty applications.
Standard Size: This is a standard (Std) size bearing, ideal for engines with original or unworn crankshaft journals.
Technical Specifications
Specification
Details
Part Number
9-12271608-0
Engine Model
Isuzu 4BG1
Part Type
Connecting Rod Bearing (Big End Bearing)
Size
Standard (Std)
Material
Steel Back + Aluminum Alloy / Copper-Lead Layer
Position
Connecting Rod to Crankshaft
Quantity per Set
Typically sold per piece or per engine set (4 pieces for a 4-cylinder engine)
OEM Equivalent
9-12271608-0
OEM Cross-Reference
This part is a direct replacement for the following OEM numbers:
Isuzu: 9-12271608-0
Alternative/Cross-Reference: 8-98023-526-0 (Note: Please verify compatibility with your specific engine serial number)
Cross-reference numbers are for reference. Always confirm fitment with your engine’s parts manual.
Vehicle/Equipment: Isuzu F-Series trucks, Hitachi ZX excavators (with Isuzu 4BG1 engine), Sumitomo excavators, and other industrial equipment.
Global Supply & Distribution
We offer reliable worldwide shipping to support your operations:
Shipping: Fast and secure delivery via DHL, FedEx, UPS, TNT, and sea freight (FOB/CIF).
Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Singapore, Japan), Middle East (UAE, Saudi Arabia), Africa (South Africa, Nigeria), and South America (Brazil, Chile).
Ports Served: Los Angeles, Rotterdam, Shanghai, Dubai, Singapore, and other major industrial hubs.
Export Experience: Over 10 years of international trade, ensuring compliant documentation and customs clearance support.
Quality Assurance
Certifications: ISO 9001:2015 certified manufacturing process.
Testing: 100% dimensional inspection and hardness testing before packaging.
Warranty: 12-month warranty against manufacturing defects under normal operating conditions.
Standards: Complies with SAE and JIS material standards for connecting rod bearings.
FAQ
Q1: What is the difference between Standard (Std) and Undersize (OS) connecting rod bearings?
A: Standard bearings are for original/unworn crankshaft journals. If your crankshaft has been reground, you will need undersize bearings (e.g., 0.25mm, 0.50mm, 0.75mm). Always measure your crankshaft journal diameter before ordering.
Q2: How do I install connecting rod bearings correctly?
A: Ensure the bearing shells are clean and dry. Apply a thin layer of clean engine oil to the bearing surface. Align the bearing tang with the notch in the connecting rod and cap. Torque the connecting rod bolts to the manufacturer’s specification (typically 80-100 Nm for 4BG1, but always consult your service manual). Never mix old and new bearings.
Q3: Can I use this bearing for a 4BG1T (turbocharged) engine?
A: Yes, this standard-size bearing is compatible with both naturally aspirated (4BG1) and turbocharged (4BG1T) versions of the Isuzu 4BG1 engine, provided the crankshaft journal is within standard service limits. For heavily modified or high-boost applications, consider performance-oriented bearings.
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