WASHER (Nissan NI12337-4K001)

A worn washer can allow fastener loosening under vibration, leading to component misalignment or failure. This aftermarket replacement part references Nissan catalog number NI12337-4K001. The washer type provides a bearing surface for a nut or bolt head, distributing clamping load evenly. A plain mechanical function is to prevent galling between the fastener and the mating surface. A concrete generic failure consequence is that a missing or crushed washer may cause the fastener to loosen during operation. Keeping a washer in sound condition helps maintain consistent torque on the joint. Verify the serial number or application, then call (562) 693-7748. The item ships at approximately 0.445 pounds.

Part number variants: NI12337-4K001, ni12337-4k001, NI123374K001, ni123374k001