Replacement Roll Pin

The MSD Ignition Replacement Roll Pin is a critical fastener designed for securing the reluctor wheel and distributor gear within high-performance ignition systems. For professional mechanics and dedicated automotive enthusiasts performing a distributor rebuild or gear swap, this small but essential component ensures that ignition timing remains precise by preventing rotational slip under extreme RPM loads. Reliable timing is the fundamental backbone of engine efficiency and power delivery, making this specialized roll pin a necessary item for any serious vehicle maintenance or modification project.

Engineered to meet the exacting specifications required for MSD ignition systems, this roll pin provides a consistent interference fit within the distributor shaft assembly. The mechanical design allows the pin to exert constant outward pressure against the internal walls of the drilled passage, effectively locking the distributor gear and reluctor wheel in a fixed position. Its precise dimensions ensure a flush fit that avoids any physical interference with the distributor housing or the sensitive internal mechanical advance mechanisms found in performance distributors.

This specific hardware is intended for users who are installing a new distributor gear or replacing a sheared pin during routine teardowns and inspections of their high-output ignition setup. Properly installing the MSD Ignition Replacement Roll Pin prevents the catastrophic engine failure that can occur if a distributor gear shears its fastener and loses synchronization with the camshaft drive. It remains the ideal solution for drag racers and street performance enthusiasts seeking to maintain the structural integrity and long-term reliability of their ignition drive system with genuine components.