Aluminum Spacers 3/8in ID x 1/4in Long

The Aluminum Spacers 3/8in ID x 1/4in Long from ALLSTAR PERFORMANCE (SKU ALL 18742) are precision-engineered flat spacers designed for builders and fabricators who demand accurate component spacing in mechanical assemblies. Whether you're assembling suspension systems, engine components, or custom frame work, these aluminum spacers provide the dimensional accuracy needed to maintain proper clearances and alignment. Available as a pair, they're an essential fastener solution for racing, performance, and restoration projects where tolerances matter.

Manufactured from lightweight aluminum in a natural finish, these spacers feature a 3/8-inch inner diameter (ID) and 11/16-inch outer diameter (OD) with a 1/4-inch thickness. The flat design distributes load evenly across bolt or fastener interfaces, preventing surface distortion and reducing the risk of component creep over time. Aluminum construction keeps weight to a minimum—just 0.03 lbs per pair—while delivering excellent corrosion resistance and machinability for custom modifications. The universal design fits standard fastener applications across automotive, motorsport, and industrial equipment builds.

These spacers benefit racers, hot rodders, and fabricators working on custom engine builds, suspension geometry corrections, or bracket standoff applications. They're ideal for situations where stock bolt lengths are slightly too long or where precise spacing between components is critical to alignment and function. Installation is straightforward—simply position the spacer between fastened components and torque to specification. For anyone building or rebuilding performance systems, ALLSTAR PERFORMANCE's aluminum spacers deliver the precision fit and reliable performance expected in competitive and custom automotive work.