Magnetic Pickup

The MSD 8505 Magnetic Pickup is a precision ignition trigger component designed for vintage and high-performance crank trigger ignition systems. Built for engine builders, mechanics, and performance enthusiasts who demand reliable spark timing control, this magnetic pickup assembly interfaces with MSD Old Style crank trigger systems to convert mechanical rotation into consistent electrical signals. Whether you're restoring a classic muscle car, tuning a race engine, or building a custom fuel-injected platform, the magnetic pickup is the critical bridge between mechanical motion and electronic ignition logic.

This MSD magnetic pickup features a 3/4-16 inch threaded mounting interface and measures 2.25 inches in length, engineered to mount directly onto crank-mounted trigger wheels with precise clearance and repeatability. The magnetic sensing element detects the passage of ferrous trigger pins or reluctor teeth, generating clean digital pulse signals that the MSD ignition module uses to fire the coil at optimal engine speed and load conditions. The compact 0.34-pound design minimizes rotating mass while the fixed magnetic gap ensures stable signal generation across the full RPM range, preventing the signal degradation that causes ignition dropout at high speeds or during heavy acceleration.

The MSD 8505 is the OEM replacement standard for anyone running an MSD Old Style crank trigger system, including circle-track racers, bracket racers, and street performance builders who prioritize ignition reliability. Installation requires access to the crank trigger mounting location; the 3/4-16 thread allows secure fastening with precision adjustment capability to maintain the critical 0.030-0.050 inch air gap between the magnetic pickup and the trigger wheel. Verify your trigger wheel design matches the MSD crank trigger specification before ordering—this pickup is engineered specifically for MSD systems and will not function with other brand crank trigger designs.