The Genuine Big End Bearing for Yanmar single‐cylinder diesel engines supports the crankshaft at the connecting rod, controlling oil clearance and reducing friction under heavy load. Built as a steel‐backed bearing with a precision bearing alloy surface, it is engineered for strength, heat resistance and consistent lubrication. This part keeps the crankshaft running true, helps prevent scoring and knock, and restores smooth operation after wear. It is a direct OEM replacement for Yanmar applications and is suitable for engines used in compact construction plant and garden machinery. Genuine Yanmar part MPN: 114940-23600. Ideal for routine servicing or full rebuilds on models such as the L75 and L100 where reliability and long service life are critical.

Key Features:
– Genuine Yanmar part for assured quality and fit (MPN: 114940-23600)
– Steel‐backed bearing alloy for high load capacity and heat stability
– Precision tolerances to maintain correct oil film and crankpin clearance
– Helps reduce knocking, vibration and premature wear on the crankshaft journal
– Smooth, accurate running surface for reliable lubrication
– Direct replacement for worn bearings; no modification required when used with standard components
– Durable construction for extended service intervals in demanding environments
– Supports efficient crankshaft rotation for easier starting and consistent performance
– Suitable for preventative maintenance and full engine overhauls

Typical Applications:
Used during servicing or rebuilds of Yanmar L‐series engines powering compactors, generators, water pumps, welders, small tractors, tillers and other small plant. Ideal when restoring oil pressure and clearances after wear, addressing big‐end noise, or following crankshaft reconditioning. Suitable for trade workshops, fleet maintenance and DIY repairs.

Also known as:
Connecting rod bearing, big‐end shell, crankpin bearing, conrod big‐end insert, crankshaft journal bearing, rod bearing shells. These terms refer to the same bearing that supports the connecting rod at the crankpin to control clearance and reduce friction.

Fits Models:
186F
L100
L100AE
L100N
L75
L90
L90AE

Product Specifications