Distributor Gear Bronze .500in Chevy

The Distributor Gear Bronze .500in Chevy from MSD IGNITION is a critical component in traditional point-and-cap distributor systems for small-block and big-block Chevrolet engines. This bronze distributor gear drives the cam lobe mechanism that opens and closes the breaker points, directly controlling ignition timing and engine firing sequence. Whether you're restoring a classic Chevy, maintaining original-equipment ignition on a street engine, or building a nostalgia-correct hot rod, this distributor gear is essential for reliable spark distribution and precise combustion timing.

Manufactured from bronze alloy, this distributor gear offers superior wear resistance and self-lubricating properties compared to inferior materials. The .500-inch shaft diameter is the OEM standard for Chevrolet distributors, ensuring a precise fit and secure engagement with the distributor drive mechanism. Bronze composition reduces friction and galling during cam lobe rotation, prolonging the service life of both the gear and the breaker point rubbing block. The natural (uncoated) finish allows the gear to maintain proper lubrication characteristics while sitting within the distributor body, preventing premature wear and maintaining accurate cam timing throughout the engine's operating range.

Chevy engine builders and mechanics rely on this OEM-specification gear for distributor rebuilds, restorations, and replacements on inline-6, 265–427 cubic-inch small-block, and big-block applications. If your distributor exhibits erratic timing, worn cam lobes, or point wear patterns that indicate gear slippage, replacement becomes necessary. Installation is straightforward—the gear slides onto the distributor shaft and is secured with the original drive pin and retaining washer. Compact dimensions (6.2 x 1.5 x 8.2 inches) and lightweight construction (0.37 lbs) make handling simple, and compatibility is universal across Chevy-based distributors using the standard .500-inch shaft configuration.