SEAL BACK UP (JLG JL91414038)

A damaged seal back-up can allow pressurized fluid to bypass the primary seal, leading to gradual leakage. During routine disassembly, a worn back-up ring may appear deformed or cracked from extrusion forces. Seal back-up condition directly affects the ability of the sealing system to maintain pressure under load. Keeping a back-up ring in sound condition helps prevent premature seal failure and fluid loss. This aftermarket replacement part references the JLG catalog number JL91414038. It serves as a mechanical support element that prevents seal extrusion in high-pressure applications. Verify the serial number or application, then call (562) 693-7748.

Part number variants: JL91414038, jl91414038