Product Details

Product Overview

This high-precision set of main crankshaft bearings and connecting rod bearings is specifically engineered for the Isuzu 4JC1 diesel engine. Designed to restore your engine’s rotating assembly to factory tolerances, this bearing set is a critical component for engine overhauls and rebuilds. We supply top-tier engine parts globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America, ensuring fast and reliable logistics for B2B clients worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured to meet or exceed OEM specifications for the Isuzu 4JC1 engine, ensuring perfect fitment and oil clearance.
• Superior Durability: Constructed from high-strength, tri-metal or bi-metal materials with a lead or aluminum-tin overlay for excellent wear resistance and fatigue strength.
• Optimal Performance: Provides consistent oil film retention, reducing friction between the crankshaft and connecting rods for smoother engine operation and extended component life.
• Complete Set: Includes all necessary main bearings and connecting rod bearings for a full engine rebuild, simplifying ordering and ensuring component compatibility.
• Rigorous Testing: Each batch undergoes strict quality control checks for dimensional accuracy, hardness, and material composition.

Technical Specifications

OEM Cross-Reference

This bearing set is a direct replacement for the following Isuzu OEM part numbers (please verify your specific application):

• Isuzu Main Bearing OEM: 8-97075-238-1, 8-97075-238-2
• Isuzu Connecting Rod Bearing OEM: 8-97075-239-0, 8-97075-239-1
• Common Reference Numbers: 8970752381, 8970752382, 8970752390, 8970752391

Note: Always cross-reference your original part number with the information above to ensure correct fitment for your specific engine variant (e.g., 4JC1-T, 4JC1-N).

Compatibility

• Engine Models: Isuzu 4JC1 (including naturally aspirated and turbocharged variants)
• Vehicle Applications: Isuzu Elf / N-Series trucks, Isuzu Fargo, Isuzu Bighorn (early models), and various industrial/agricultural equipment powered by the 4JC1 engine.
• Year Range: Typically found in vehicles manufactured from the late 1980s through the late 1990s.

Global Supply & Distribution

As a dedicated supplier of Isuzu engine components, we offer reliable worldwide shipping to support your business operations. Our distribution network ensures fast delivery to major ports and industrial centers, including Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai. We have extensive export experience in the B2B sector, handling bulk orders, drop-shipping, and FCL/LCL container shipments efficiently. Our trade compliance team ensures all documentation is accurate for smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities, ensuring consistent quality control throughout the manufacturing process.
• Material Certification: All raw materials are sourced from reputable steel and alloy suppliers and are tested for chemical composition and hardness.
• Testing Procedures: Each bearing undergoes dimensional inspection using CMM (Coordinate Measuring Machine) technology and is checked for surface finish and crush height.
• Warranty: We provide a standard 12-month warranty against manufacturing defects from the date of shipment. Extended warranties are available for bulk/contract orders.

FAQ

Q: How do I confirm this bearing set fits my specific 4JC1 engine?
A: While this set is designed for the standard 4JC1 engine, there are slight variations in bearing sizes (standard, 0.25mm, 0.50mm undersize). Please check the existing markings on your old bearings or your engine’s service manual. Our standard set is for standard journal sizes. If your crankshaft has been ground, you will need the corresponding undersize bearings. Contact us with your engine serial number for precise confirmation.

Q: What is the proper installation procedure for these bearings?
A: Installation requires mechanical expertise. Key steps include: 1) Thoroughly cleaning the bearing saddles and connecting rod bores. 2) Ensuring the crankshaft journals are polished and free of debris. 3) Applying clean engine oil to the bearing surfaces. 4) Torquing the main bearing caps and connecting rod caps to the specified OEM torque settings using a calibrated torque wrench. Never use impact tools for final tightening. Always check bearing clearance with Plastigauge.

Q: Can these bearings be used in a high-performance or turbocharged 4JC1 engine?
A: Yes, these bearings are manufactured with a high-load capacity material suitable for both naturally aspirated and turbocharged applications. However, for heavily modified engines with significantly increased horsepower, we recommend consulting with our technical team to ensure the bearing clearance and oil supply are adequate for your specific performance requirements. Proper oil selection (e.g., 15W-40 or 20W-50) is also critical.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .