Cummins NT855 Main Bearing Set with Thrust Washer MAHLE 3801260

Product Details

Product Overview

This is a premium quality Cummins NT855 Main Bearing Set, manufactured by the renowned industry leader MAHLE. Designed specifically for the Cummins NT855 diesel engine platform, this bearing set includes integrated thrust washers, providing a complete solution for engine rebuilds and overhauls. The part number 3801260 is a critical identifier for this specific application.

As a direct replacement component, this main bearing set is engineered to meet the exacting tolerances required for heavy-duty diesel engines commonly found in construction equipment, industrial machinery, and power generation units. While the NT855 engine is widely used across various original equipment manufacturers (OEMs), we recommend verifying the specific engine model and serial number to confirm compatibility with your application before purchase.

Supplied in original MAHLE packaging, this 100% new part ensures you receive a genuine, high-performance component that meets the global standards expected from a top-tier aftermarket supplier. This set is a vital component for ensuring the longevity and reliability of your engine’s rotating assembly.

Key Features & Benefits

• Genuine MAHLE Quality: Manufactured by MAHLE, a world-leading OE supplier, ensuring premium metallurgy and precision engineering.
• Complete Set with Thrust Washers: Includes the necessary thrust washers (flanged bearing) for precise crankshaft end-play control, simplifying procurement and installation.
• Direct Fit for Cummins NT855: Engineered to the exact specifications of the Cummins NT855 engine family, guaranteeing proper oil clearance and load distribution.
• 100% New Condition: Supplied as brand new, unused components, eliminating the risks associated with remanufactured or used bearings.
• Enhanced Durability: Designed to withstand the high loads and harsh operating conditions of heavy-duty diesel engines, providing extended service life.
• Reliable Supply Chain: Sourced from Shanghai, China, with robust logistics for fast, reliable global delivery to major industrial centers.

Technical Specifications

OEM Cross-Reference

This MAHLE main bearing set is a direct aftermarket replacement for the following OEM part numbers. Please note that while the specific OEM number was not provided in the source data, the MAHLE part number 3801260 is widely recognized as a direct replacement for the standard Cummins bearing set used in NT855 engines. For precise fitment, always cross-reference with your engine’s parts manual using the MAHLE number.

• MAHLE: 3801260
• Common Cross-References: This part is often used as a replacement for standard Cummins OEM main bearings for the NT855. We recommend verifying your specific engine serial number for exact OEM part compatibility.

Compatibility

This main bearing set is specifically designed for the Cummins NT855 diesel engine platform. This engine series is commonly used for:

• Construction Machinery: Excavators, bulldozers, and wheel loaders (e.g., Komatsu D375A, D155A, PC400, PC600 series).
• Industrial & Generator Sets: Power generation units and industrial pumps.
• Mining & Quarrying: Heavy-duty haul trucks and drilling equipment.
• Marine Applications: Workboats and auxiliary engines.

Important Fitment Note: The NT855 engine was used across many OEM brands. While this bearing set is a standard component for the engine block, we strongly advise confirming your engine’s specific model and build date to ensure correct part number application.

Global Supply & Distribution

We specialize in the global supply of heavy-duty diesel engine components. Our distribution network ensures fast and reliable delivery to major markets worldwide, including:

• North America: Frequent shipments to ports like Los Angeles, Houston, and New York.
• Europe: Regular deliveries to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct shipping to Singapore, Dubai, and major Australian ports.
• Middle East & Africa: Efficient logistics to Jebel Ali, Dammam, and Durban.

With a strong export focus from our Shanghai distribution hub, we are equipped to handle both small parcel and full container shipments, ensuring your critical parts arrive on time, every time.

Quality Assurance

As a product from MAHLE, one of the world’s leading automotive and engine component manufacturers, this bearing set is produced under strict quality control standards (ISO/TS 16949 certified facilities). Each component undergoes rigorous inspection for dimensional accuracy, material hardness, and surface finish. We stand behind the quality of this part with a standard 3-month warranty against manufacturing defects. For large volume or fleet orders, extended warranty and after-sales online support are available.

FAQ

Q1: Is this bearing set a direct replacement for my Cummins NT855 engine?
A: Yes, this MAHLE set (part 3801260) is designed as a direct fit for the standard main bearing journals of the Cummins NT855 diesel engine. It includes the thrust washer for the rear main bearing position. However, due to variations in engine builds, we recommend verifying the bearing size (standard, 0.25mm, 0.50mm undersize) required for your specific crankshaft.

Q2: How do I install the main bearings and thrust washers correctly?
A: Installation should be performed by a qualified diesel mechanic. Ensure the bearing saddles and caps are perfectly clean. The main bearing shells are installed dry, with the locating tangs seated in the grooves. The thrust washers (flanged half) are fitted to the rear main bearing cap. Apply clean engine oil to all bearing surfaces before assembly. Always torque the main bearing caps to the manufacturer’s specifications in the correct sequence.

Q3: What is the warranty period and what does it cover?
A: This product comes with a 3-month warranty covering manufacturing defects in material and workmanship. The warranty does not cover damage caused by incorrect installation, lack of lubrication, or normal wear and tear. Please ensure your engine’s oil system is functioning correctly and that you use the correct grade of engine oil for the NT855.