Aluminum Spacers 3/8in ID x 1/2in Long

Aluminum Spacers 3/8in ID x 1/2in Long from ALLSTAR PERFORMANCE are precision-engineered flat spacers designed for mechanical assembly, suspension tuning, and drivetrain alignment applications. Whether you're building a custom hot rod, adjusting brake geometry, or spacing components in an engine bay, these aluminum spacers provide the exact offset needed to fine-tune clearance and alignment without adding significant weight. Fabricators, mechanics, and performance enthusiasts rely on quality spacers to achieve proper component positioning and maintain structural integrity in demanding automotive environments.

These flat spacers feature a 3/8 inch inner diameter with an 11/16 inch outer diameter, delivering a compact 1/2 inch thickness per spacer. Machined from lightweight aluminum in a natural finish, they resist corrosion while remaining easy to work with during installation and future adjustments. The universal design allows them to fit most standard fastener sizes, making them invaluable for custom fabrication projects where off-the-shelf solutions fall short. Aluminum construction keeps rotating and suspended mass low, which is critical for fuel economy, handling response, and longevity in performance applications.

These spacers are ideal for engine builders, suspension tuners, and custom fabricators who demand precision spacing in high-tolerance assemblies. Common applications include wheelbase adjustment, brake caliper spacing, motor mount offset, and universal component standoff positioning. Supplied as a pair, they offer cost-effective solution for jobs requiring dual offset placement. Their lightweight profile makes them suitable for race builds where every gram counts, while their durability ensures they handle street and strip duty alike.