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A spacer is a part that sets and maintains a precise distance or gap between two components.

Fitted between parts it positions them correctly and takes up load, setting clearances such as bearing preload or alignment; thin spacers used to fine-tune a gap are called shims.

Spacers and shims are used in hubs, gearboxes, differentials, and many assemblies where clearance matters. The correct thickness is set to the specified clearance.

It is linked to 1 OE-compatible part number(s).