4FE1 Main Bearing & Connecting Rod Bearing 0.25 M172A R172A for Liebherr Engine Parts

Product Details

Product Overview

This is a high-quality Main Bearing and Connecting Rod Bearing set (undersize 0.25mm), specifically designed for the 4FE1 diesel engine. The set includes part numbers M172A (Main Bearing) and R172A (Connecting Rod Bearing), which are critical components for maintaining the precise clearances and oil film required for optimal engine performance.

Commonly used in Liebherr construction and industrial machinery, this bearing set is manufactured to OEM size specifications, ensuring a direct replacement fit for the 4FE1 engine block. Whether you are performing a full engine rebuild or replacing worn bearings due to high hours, this kit provides the necessary components for a reliable repair.

Supplied by , these bearings are ideal for B2B buyers in the construction, agriculture, marine, and power generation sectors who require consistent quality for their fleet maintenance.

Key Features & Benefits

• Precise Undersize Fitment: The 0.25mm undersize is designed for engines that have been machined to the first standard reduction, providing the correct crush height and oil clearance.
• Direct Replacement for 4FE1: Manufactured to match the exact OEM dimensions of the 4FE1 engine, eliminating guesswork during installation.
• OEM Size Standard: Built to original equipment manufacturer size standards, ensuring compatibility with the crankshaft journals and connecting rods.
• Durable Material Construction: Designed to withstand high loads and temperatures found in diesel engine applications, reducing the risk of premature failure.
• Complete Bearing Set: Includes both Main Bearings (M172A) and Connecting Rod Bearings (R172A) in one convenient set.
• Widely Compatible: Suitable for use in construction, industrial, agricultural, genset, marine, and material handling equipment powered by the 4FE1 engine.

Technical Specifications

OEM Cross-Reference

The following part numbers are direct cross-references for this bearing set:

• Main Bearing: M172A
• Connecting Rod Bearing: R172A

Note: While these part numbers correspond directly to the Liebherr 4FE1 engine, we recommend verifying your specific engine serial number and crankshaft journal size (standard vs. 0.25mm undersize) before ordering.

Compatibility

This bearing set is commonly used for the following applications:

• Engine Model: Liebherr 4FE1
• Equipment Types: Excavators, Bulldozers, Wheel Loaders, Forklifts, Generators, Marine Engines, Agricultural Tractors

Important Fitment Note: This is a 0.25mm undersize bearing. It is intended for engines where the crankshaft journals have been ground to the first undersize reduction. It will not fit a standard (non-machined) crankshaft. Please measure your crankshaft journal diameter before purchasing.

Global Supply & Distribution

offers worldwide shipping capabilities to meet the demands of international B2B clients. Our supply chain is optimized for fast delivery to major ports and industrial centers across the globe, including:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Shanghai, Busan, Sydney
• Middle East & Africa: Dubai, Jeddah, Durban

We have extensive export experience and ensure all shipments comply with international trade regulations. Whether you need air freight for urgent downtime or sea freight for bulk orders, we can tailor the logistics to your schedule.

Quality Assurance

• Manufacturing Standards: Bearings are produced under strict quality control procedures in ISO-certified facilities.
• Testing: Machinery Test Reports and Video Outgoing Inspections are provided upon request to verify dimensional accuracy and surface finish.
• Warranty: Backed by a standard 6-month warranty against manufacturing defects in materials and workmanship.
• Traceability: Each batch is traceable, ensuring consistent quality across all orders.

FAQ

Q: How do I know if I need a 0.25mm undersize bearing for my 4FE1 engine?

A: You will need this bearing if your crankshaft has been reground to the first undersize reduction. You can verify this by measuring the connecting rod journal and main journal diameters with a micrometer. If the journals measure 0.25mm smaller than the standard factory specification, this bearing set is the correct choice. Always consult your engine service manual for exact specifications.

Q: Does this set include thrust washers?

A: No, this specific set (M172A & R172A) includes only the main bearing shells and connecting rod bearing shells. Thrust washers for the 4FE1 engine are typically sold separately. Please check your engine’s parts catalog to ensure you have all necessary components for a complete overhaul.

Q: What is the recommended installation procedure for these bearings?

A: Proper installation requires clean surfaces and correct lubrication. Ensure the bearing saddles in the block, main caps, and connecting rods are free of debris. Apply clean engine oil to the bearing surfaces before installation. Tighten main bearing and connecting rod bolts to the manufacturer’s specified torque values using a calibrated torque wrench. Always replace bolts if the manufacturer specifies one-time use. If you are not experienced with engine assembly, we recommend hiring a qualified diesel technician.