4288572 O-Ring Fits John Deere 992ELC, 400LC, 450LCOne New Aftermarket Replacement O Ring Fits John Deere Excavators This O ring is a precision sealing component designed for use in Fits John Deere large frame excavators, including the 992ELC, 400LC, and 450LC. O rings of this type provide critical fluid sealing in hydraulic systems, pins, and cylinder assemblies, preventing fluid leakage and protecting internal components from contamination and wear. The Fits John Deere 400LC, 450LC, and 992ELC are