DB58 Main Bearing and Connecting Rod Bearing 0.25 for Doosan Engine Parts

Product Details

Product Overview

This product listing offers a high-quality set of Main Bearings and Connecting Rod Bearings specifically designed for the Doosan DB58 diesel engine. These precision components are manufactured to 0.25 oversize (0.25mm) specifications, making them ideal for engine rebuilds where the crankshaft has been ground to the first undersize. Sourced from a reliable aftermarket manufacturer, these bearings provide a cost-effective solution for restoring your engine to peak performance without compromising on quality.

Commonly used in a wide range of heavy equipment including excavators, trucks, forklifts, bulldozers, buses, and loaders, the DB58 engine is a workhorse in the construction and logistics industries. These bearings are engineered to meet OEM size and fitment standards, ensuring a secure and reliable installation. Whether you are a workshop, parts distributor, or fleet manager, this set offers a direct replacement for worn-out components.

Key Features & Benefits

• Precision 0.25 Oversize: Specifically machined for crankshafts ground to 0.25mm undersize, ensuring the correct oil clearance and bearing crush for optimal engine operation.
• OEM Standard Fitment: Manufactured to original equipment size specifications, providing a direct, hassle-free replacement for your DB58 engine without modifications.
• Durable Material Construction: Built from high-strength steel-backed materials with a lead or aluminum alloy lining for superior wear resistance and load-bearing capacity under high-stress conditions.
• Comprehensive Set: Includes both main bearings and connecting rod bearings in one package, simplifying your parts ordering and inventory management for a complete engine rebuild.
• Cost-Effective Solution: Offers significant savings compared to OEM dealer pricing while maintaining a high standard of quality and performance for aftermarket applications.
• Rigorous Quality Control: Each bearing undergoes dimensional and visual inspection to ensure consistent wall thickness, proper oil clearance, and defect-free surfaces.

Technical Specifications

OEM Cross-Reference

While specific OEM part numbers for the 0.25 oversize set may vary, the standard OEM part numbers for the DB58 main and connecting rod bearings are commonly referenced. Please cross-reference your original bearing part numbers to ensure compatibility. This set is designed to replace the following standard OEM bearing types for the DB58 engine:

• Main Bearings (Standard/Undersize): Commonly referenced as 65.04801-5000 or similar Doosan/Komatsu OEM numbers.
• Connecting Rod Bearings (Standard/Undersize): Commonly referenced as 65.04802-5000 or similar Doosan/Komatsu OEM numbers.
• Note: The 0.25 oversize variant replaces the standard part when a crankshaft has been reground. Always verify your original bearing part number and the stamp on the back of the old bearing for exact matching.

Compatibility

This product is specifically designed for the Doosan DB58 diesel engine. This engine is commonly used in the following equipment:

• Excavators: Doosan Solar 130, 140, 150 series and other models utilizing the DB58 engine.
• Forklifts: Doosan D30, D40, D50 series and other heavy-duty forklifts.
• Loaders: Various compact and mid-size wheel loaders.
• Trucks & Buses: Doosan commercial vehicles and buses equipped with the DB58 engine.
• Bulldozers: Some Doosan and Daewoo bulldozer models.

Important Fitment Note: This is an aftermarket part. Please confirm your engine model and the required bearing size (0.25 oversize) before purchasing. We recommend comparing this part with your original component to ensure a proper fit.

Global Supply & Distribution

We are a dedicated supplier of heavy-duty engine parts with a robust global distribution network. Our parts are shipped worldwide from our warehouses in Guangdong and Guizhou, China, ensuring quick and reliable delivery to major industrial centers.

Major Markets Served:

• North America: USA, Canada, Mexico
• Europe: Germany, France, UK, Netherlands, Poland, Italy, Spain
• Asia-Pacific: Australia, New Zealand, Singapore, Indonesia, Thailand, Vietnam, India
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Kenya, Nigeria
• South America: Brazil, Chile, Peru, Colombia

We offer flexible shipping options including express courier (DHL, FedEx, UPS) for urgent orders and sea freight (FOB/CIF) for bulk quantities. Our export team ensures all documentation is compliant with international trade standards for a smooth customs clearance process.

Quality Assurance

We are committed to delivering high-quality aftermarket parts that meet rigorous standards. Our DB58 main and connecting rod bearings are produced under strict quality control protocols.

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities using precision machining processes.
• Testing: Each batch undergoes dimensional inspection, material hardness testing, and visual checks for surface defects. A Machinery Test Report is provided upon request.
• Warranty: We offer a 6-month warranty against manufacturing defects. This covers issues such as material flaws, incorrect sizing, or premature wear under normal operating conditions.
• Outgoing Inspection: A video outgoing inspection can be provided to verify the quality and condition of the parts before shipment.

FAQ

Q: What does “0.25” mean in the product name?
A: The “0.25” indicates that these bearings are an oversize (0.25mm) set. They are designed to be used when the engine’s crankshaft journals have been ground down by 0.25mm during a rebuild. This restores the correct oil clearance between the bearing and the crankshaft. If your crankshaft is not reground, you must use standard size bearings.

Q: Will these bearings fit my Doosan DB58 engine directly?
A: Yes, these bearings are manufactured to the exact OEM dimensions for the Doosan DB58 engine. However, it is crucial to verify that your engine requires the 0.25 oversize specification. Always measure your crankshaft journals or check the stamp on your old bearings to confirm the required undersize before installation.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Thoroughly cleaning the bearing saddles and caps. 2) Applying clean engine oil to the bearing surfaces. 3) Ensuring the bearing locking tabs align correctly. 4) Torquing the main and connecting rod cap bolts to the manufacturer’s specified torque settings using a calibrated torque wrench. Incorrect torque can lead to bearing failure.