Product Overview

This premium Main Bearing and Connecting Rod Bearing Set is engineered to the exact OEM specifications for the JCB448 diesel engine. Designed for durability and optimal performance under heavy loads, this bearing set is a critical component for engine rebuilds and overhauls. We supply directly from our manufacturing base in Guangdong, China, to a global network of distributors, workshops, and heavy machinery operators across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions (STD size) for a perfect fit and optimal oil clearance, ensuring proper lubrication and longevity.
• High-Load Durability: Constructed from high-grade materials designed to withstand the extreme pressures and temperatures within a diesel engine.
• Reduced Friction & Wear: Advanced surface finishing promotes smooth crankshaft rotation, minimizing power loss and protecting critical engine components.
• Complete Set Solution: Includes all necessary main and connecting rod bearings for a full engine bottom-end rebuild, saving time on parts sourcing.
• Rigorous Quality Control: Each set undergoes thorough inspection, supported by machinery test reports and video outgoing-inspection documentation.

Technical Specifications

OEM Cross-Reference

This bearing set is manufactured to directly replace the original equipment bearings for the JCB448 engine. For precise cross-referencing, please verify with your engine serial number. Common OEM part numbers for this application include series from the original engine manufacturer. Contact our technical support with your engine details for exact number confirmation.

Compatibility

Primary Engine Application: JCB448 Diesel Engine.

Vehicle & Machinery Applications: This bearing set is suitable for a wide range of equipment powered by the JCB448 engine, including but not limited to:

• Forklifts
• Excavators
• Trucks
• Loaders
• Bulldozers
• Buses
• Other Industrial Machinery

Global Supply & Distribution

We are a leading exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our supply chain is optimized for fast, reliable delivery to major global markets:

• Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), and Asia-Pacific (Singapore, Japan).
• Efficient Logistics: We ship via air and sea freight to all major ports and industrial hubs, ensuring timely delivery to keep your operations running.
• B2B Expertise: We specialize in bulk orders for distributors, large repair shops, and OEM service networks, offering competitive pricing and streamlined documentation.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using precision machining and quality-controlled materials.
• Comprehensive Warranty: Backed by a 6-month warranty from the date of purchase, covering material and workmanship defects.
• Testing & Documentation: Every production batch is validated. A machinery test report and video record of the outgoing inspection are available upon request to guarantee product integrity.

FAQ

Q1: Is this bearing set the exact OEM size, and do I need to machine my engine block or crankshaft?
A: Yes, this is a Standard (STD) size set designed as a direct replacement for unworn engines or those that have been machined back to standard specifications. If your engine components have been machined (e.g., ground crankshaft, align-bored block), you will need undersize bearings. Always measure components before installation.

Q2: What is included in the “complete set”?
A: This single-item listing includes a full set of both main bearings (which support the crankshaft in the engine block) and connecting rod bearings (which connect the rods to the crankshaft) required for a complete rebuild of the JCB448 engine’s lower end.

Q3: Do you provide technical support for installation and fitment questions?
A: Absolutely. Our team includes senior automotive specialists. We strongly recommend providing your engine model and serial number for precise fitment verification. We can advise on installation torque specs and best practices to ensure a successful rebuild.

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 .