Product Overview

This high-precision DB33 Main Bearing Set in 0.50mm undersize is engineered for the professional rebuild and repair of Doosan diesel engines. Designed as a direct OEM replacement, this component is critical for restoring engine compression, reducing oil consumption, and ensuring long-term reliability in demanding applications. We supply this part globally, with established logistics to major industrial markets including North America, Europe, the Asia-Pacific region, and the Middle East, supporting the maintenance of construction, power generation, and industrial machinery fleets worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM tolerances for a perfect fit and optimal oil clearance, ensuring immediate engine performance restoration.
• Enhanced Durability: Constructed from high-strength aluminum alloy with a precision overlay for superior fatigue resistance and wear characteristics under high-load conditions.
• Optimal Lubrication: Micro-groove design maintains a consistent oil film, reducing friction and preventing premature crankshaft wear for extended engine life.
• Reliability in Rebuilds: Essential for correcting crankshaft journal wear, this 0.50 undersize bearing is a trusted solution for professional engine overhauls, minimizing downtime.

Technical Specifications

OEM Cross-Reference

This part serves as a direct replacement for the following OEM numbers:

• Primary OEM No.: 8-98023-526-0
• Alternative/Cross Reference: DB33-0-05000 (Common aftermarket reference)

Note: Always verify the specific undersize (0.50mm) required for your crankshaft journal before ordering.

Compatibility

This main bearing set is specifically designed for the Doosan DB33 series diesel engines. These engines are commonly found in:

• Industrial Applications: Doosan excavators, wheel loaders, and heavy construction equipment.
• Power Generation: Standby and prime power generator sets.
• Vehicle Integration: Certain models of heavy-duty trucks and specialized vehicles utilizing the DB33 power unit.

It is compatible with DB33 engines requiring a 0.50mm (0.020″) undersize main bearing for crankshaft journal repair.

Global Supply & Distribution

We are a leading supplier of heavy-duty engine components with a robust international supply chain. Our capabilities include:

• Worldwide Shipping: Reliable export to all major continents via air and sea freight.
• Key Market Focus: Rapid delivery to industrial hubs in North America (USA, Canada, Mexico), Europe (Germany, UK, Poland), Asia-Pacific (Singapore, Australia, Japan), and the Middle East (UAE, Saudi Arabia).
• Logistics Efficiency: Consolidated shipments to major ports (Los Angeles, Rotterdam, Singapore, Jebel Ali) with onward inland logistics support.
• Trade Compliance: All exports are handled with complete commercial documentation (Packing List, Commercial Invoice, Certificate of Origin) in full compliance with international trade regulations.

Quality Assurance

Every bearing set is produced under strict quality control protocols to meet or exceed original equipment specifications.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced metallurgy and machining processes.
• Rigorous Testing: Components undergo dimensional accuracy checks, surface finish analysis, and material hardness testing to ensure performance integrity.
• Warranty: Backed by a standard warranty against manufacturing defects. Specific warranty terms are provided with the commercial invoice.

FAQ

Q1: How do I confirm this is the correct undersize bearing for my Doosan DB33 engine?
A1: The correct undersize (0.50mm) must be determined by measuring the crankshaft main journals after machining or by following the specifications from your engine’s overhaul manual. Using an incorrect undersize will lead to improper oil clearance and potential engine failure.

Q2: Is this a full set of main bearings for the engine?
A2> This part number typically refers to a complete set of main bearing shells required for one engine rebuild. However, we recommend confirming the exact quantity (upper and lower shells for all main bearing caps) for your specific DB33 engine configuration before finalizing your order.

Q3: What are the storage and handling precautions for these bearings?
A3> Bearings should be stored in their original packaging in a clean, dry environment. The bearing surface is coated with a protective layer; avoid touching this surface with bare hands to prevent contamination from oils and acids. Install using proper tools and lubrication as specified in the service manual.

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 .