.700in Spacer For BDS Drive Pulley

The Blower Drive Service 0.700in Spacer for BDS Drive Pulley (Part No. SP-9404) is a precision aluminum spacer designed for supercharger pulley assembly and alignment in high-performance engine builds. This 0.700-inch thick component ensures proper belt tracking and pulley spacing in supercharger installations where exact offset measurements are critical to reliable operation and longevity of the drive system.

Manufactured from aluminum in natural finish, this spacer weighs 0.45 lbs and measures 4 × 0.85 × 4 inches. The material selection balances weight reduction with structural integrity—aluminum is standard in supercharger accessory design because it resists corrosion from engine bay exposure while maintaining the dimensional stability required for pulley alignment. Blower Drive Service is recognized in the automotive performance sector for precision-machined pulley components and drivetrain accessories that support both street and competition builds.

This spacer is essential for builders working with BDS pulley systems where precise belt tension and pulley concentricity directly impact supercharger reliability. Installation scenarios include serpentine belt drive modifications, pulley offset adjustments, and OEM supercharger retrofit applications. Incorrect spacer thickness can result in belt misalignment, accelerated wear, or slippage—making the correct specification critical. Buyers should confirm this 0.700-inch thickness matches their specific BDS pulley kit requirements before ordering.

Performance engine builders and supercharger system installers depend on OEM-spec spacers to avoid alignment issues that compromise drive system efficiency. The natural aluminum finish is compatible with standard engine bay environments and does not require additional coating unless exposed to salt air or extreme corrosion conditions.