RING - BACK UP (Nissan NI11243-82161)

NI11243-82161: A damaged retaining ring can allow assembled components to separate during operation, leading to mechanical failure. The RING - BACK UP is an aftermarket replacement part cross-referenced to Nissan part number NI11243-82161. This type of ring functions as a mechanical stop that holds a shaft or bore assembly in position. When a back-up ring wears or breaks, the primary seal or bearing may shift out of place, causing leakage or misalignment. In a typical repair scenario, the old ring is removed and a new one is installed to restore secure component retention. Verify the serial number or application, then call (562) 693-7748.

Part number variants: NI11243-82161, ni11243-82161, NI1124382161, ni1124382161