Excavator Engine Bearing Daido M4050K Main Bearing 6WA1 Con Rod Bearing R4050K

Product Details

Product Overview

This product listing offers a matched set of precision engine bearings for the Isuzu 6WA1 diesel engine, commonly used in heavy excavator applications. The set includes the Daido M4050K Main Bearing and the Daido R4050K Con Rod Bearing. These are genuine, long-lasting parts designed to maintain the critical clearances and oil film necessary for optimal engine performance and durability.

As a critical component in the rotating assembly, these bearings ensure the crankshaft and connecting rods operate smoothly under high load conditions. While the part numbers M4050K and R4050K are specific to the 6WA1 platform, professional buyers should always verify compatibility with their specific engine serial number and block specifications to ensure a correct fit.

Key Features & Benefits

• Genuine Daido Quality: Manufactured to OEM specifications by Daido Metal, a premier Japanese bearing supplier, ensuring dimensional accuracy and material integrity.
• Complete Bearing Set: Includes both main and con rod bearings (M4050K & R4050K) for a comprehensive engine rebuild or overhaul.
• Engineered for 6WA1 Excavators: Specifically designed for the high-torque, high-stress environment of excavator diesel engines.
• Superior Wear Resistance: Constructed with a multi-layer alloy structure that provides excellent fatigue strength and resistance to scuffing and corrosion.
• Precision Clearance: Manufactured with tight tolerances to ensure proper oil clearance, reducing friction and preventing engine failure.
• Long-Lasting Performance: Designed for extended service life, reducing downtime and maintenance costs for heavy equipment operators.

Technical Specifications

OEM Cross-Reference

The following part numbers are direct references for this bearing set. While M4050K and R4050K are the standard sizes, please consult your service manual for undersize or oversize options if required during a crankshaft grind.

• Main Bearing: Daido M4050K (Standard Size)
• Con Rod Bearing: Daido R4050K (Standard Size)
• OEM Equivalent: These are genuine Daido parts, which are the standard OEM supplier for Isuzu engines. Cross-reference with your local Isuzu parts catalog for verification.

Compatibility

This bearing set is commonly used for the following applications. Fitment is inferred based on engine model; always verify with your equipment manufacturer.

• Engine: Isuzu 6WA1
• Common Equipment: Excavators (e.g., Hitachi ZX series, Sumitomo SH series) and other heavy machinery utilizing the 6WA1 power plant.

Global Supply & Distribution

We serve a global network of B2B clients including equipment dealers, repair shops, and fleet operators. Our distribution capabilities ensure fast and reliable delivery to major industrial centers worldwide.

• Major Markets: North America, Europe (EU), Asia-Pacific, Middle East (UAE, Saudi Arabia), Africa, and South America.
• Shipping: We offer express, air freight, and sea freight options. Fast dispatch to major ports like Los Angeles, Rotterdam, Shanghai, and Jebel Ali.
• Export Experience: We are experienced in international trade documentation, customs clearance, and compliance with local import regulations.

Quality Assurance

Quality is our priority. This bearing set is sourced directly from reputable Japanese manufacturing channels.

• Manufacturing Standard: OEM specification, ISO-certified production facilities.
• Warranty: 3-month warranty against manufacturing defects. Post-warranty video technical support is available.
• Testing: Each batch is subject to dimensional and material composition verification to ensure it meets the high standards required for diesel engine applications.

FAQ

Q: How do I confirm if the M4050K and R4050K bearings are the correct size for my 6WA1 engine?
A: These are standard size bearings. You must measure your crankshaft journal diameters and connecting rod bore sizes with a micrometer. If the crankshaft has been ground or is worn beyond service limits, you will need undersized bearings (e.g., 0.25mm, 0.50mm). Always match the bearing size to the measured journal.

Q: Do I need to replace the main bearings and rod bearings at the same time?
A: Yes, it is highly recommended to replace both sets during a major engine overhaul. Using old bearings with new ones can lead to uneven oil clearance and premature failure. This listing provides a matched set for a complete rebuild.

Q: What is the shelf life of these bearings, and how should they be stored?
A: Unopened, these bearings have an indefinite shelf life if stored properly. Keep them in a dry, clean environment at room temperature. Do not remove them from their protective packaging until the moment of installation to prevent contamination from dust or moisture.