Isuzu 4JA1 Main Bearing 8-94168553-0 for Excavator & Truck Engine Parts

Product Details

Product Overview

This high-quality main bearing, part number 8-94168553-0, is specifically manufactured for the Isuzu 4JA1 diesel engine. As a critical rotating assembly component, this main bearing ensures proper crankshaft support and oil clearance within the engine block. Designed to meet OEM specifications, it provides reliable performance for heavy-duty applications commonly found in excavators, trucks, forklifts, and other industrial machinery.

The 4JA1 engine is widely recognized for its durability and efficiency in construction and material handling equipment. This main bearing replacement part allows for cost-effective engine rebuilding and maintenance. While primarily designed for Isuzu platforms, it may also serve as a compatible replacement for certain applications using the 4JA1 engine platform. Please verify your specific engine model and application requirements before installation.

Key Features & Benefits

• OEM Specification Match: Manufactured to meet or exceed original Isuzu specifications for the 4JA1 engine, ensuring proper fit and function during engine assembly.
• Precision Engineering: Each bearing is machined to exact tolerances, providing correct oil clearance and consistent load distribution across the crankshaft journals.
• Durable Construction: Made from high-quality bearing material designed to withstand the demanding conditions of diesel engine operation, including high temperatures and continuous heavy loads.
• Application Versatility: Suitable for a wide range of equipment including excavators, trucks, forklifts, bulldozers, buses, and loaders powered by the Isuzu 4JA1 diesel engine.
• Cost-Effective Solution: Offers a budget-friendly alternative to OEM parts without compromising on quality or performance, ideal for fleet maintenance and engine rebuilds.
• Easy Identification: Clearly marked with part number 8-94168553-0 for quick verification and cross-referencing with your existing components.

Technical Specifications

OEM Cross-Reference

This main bearing corresponds to the following OEM part number(s):

• Isuzu OEM: 8-94168553-0
• Alternative Reference: 8-94168553 (without suffix)

Note: While this part is manufactured to match OEM specifications, it is an aftermarket replacement component. Always compare with your original part before installation.

Compatibility

This main bearing is commonly used for the following applications:

• Engine Models: Isuzu 4JA1 diesel engine
• Vehicle/Equipment Types: Excavators, trucks, forklifts, bulldozers, buses, loaders, and other industrial machinery

Important: Fitment may vary depending on specific equipment configurations and engine variants. We recommend verifying compatibility with your existing part number and engine model before purchasing.

Global Supply & Distribution

Our products are available for worldwide shipping and we serve a diverse range of international markets. With strategic warehouse locations in Guangdong and Guizhou, China, we can efficiently dispatch orders to major ports and industrial centers across North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.

We have extensive export experience and work with international logistics partners to ensure timely delivery. Whether you need air freight for urgent repairs or sea freight for bulk orders, we can accommodate your shipping requirements. Our team is experienced in international trade documentation and customs compliance for smooth cross-border transactions.

Quality Assurance

Each main bearing undergoes rigorous quality control procedures to ensure reliability and performance. Our manufacturing process includes:

• Material verification and testing to meet industry standards
• Dimensional inspection using precision measurement equipment
• Surface finish quality checks
• Video outgoing inspection available upon request
• Machinery test reports provided for quality verification

All products come with a 6-month warranty against manufacturing defects. We stand behind the quality of our components and are committed to customer satisfaction. For any quality concerns, our support team is available to assist with inspection documentation and replacement procedures.

FAQ

Q1: How do I verify that this 8-94168553-0 main bearing fits my Isuzu 4JA1 engine?
A: Check the existing part number on your current main bearing. If it matches 8-94168553-0 or 8-94168553, this bearing should be compatible. Also confirm your engine model is the Isuzu 4JA1 diesel variant. For equipment-specific applications, we recommend consulting your service manual or contacting our support team with your engine serial number for verification.

Q2: What is the recommended installation procedure for this main bearing?
A: Installation should be performed by a qualified diesel mechanic following standard engine rebuilding procedures. Key steps include: thoroughly cleaning the bearing bore and crankshaft journals, applying clean engine oil to the bearing surfaces, ensuring proper orientation of bearing tabs, torquing main cap bolts to manufacturer specifications using a torque wrench, and checking crankshaft end-play after installation. Always refer to the Isuzu 4JA1 service manual for exact torque values and procedures.

Q3: How should I store this main bearing before installation?
A: Store the bearing in its original packaging in a clean, dry environment away from dust, moisture, and extreme temperatures. Keep the bearing coated with the protective oil it arrives with until installation. Avoid handling the bearing surface with bare hands as skin oils can contaminate the precision surface. If storage exceeds 6 months, re-inspect for any signs of corrosion or damage before installation.