GLM V6 Thunderbolt IV Distributor Assembly - Replaces Mercury 805185A37

Upgrade your Mercruiser GM V6 engine with the reliable GLM V6 Thunderbolt IV Distributor Assembly (GLM71240), a direct replacement for Mercury 805185A37. This HEI (High Energy Ignition) distributor ensures powerful, consistent spark for smooth performance in Thunderbolt IV/V ignition systems.- Advanced Hall-Effect sensor technology with bullet connections for dependable ignition- Delivers strong, consistent spark to prevent misfires and improve engine efficiency- Built from corrosion-resistant materials for marine durability, especially in saltwater environments- Matches OEM specifications for seamless installation and long-term reliability- Ideal for boaters seeking affordable, high-quality aftermarket partsFits: Mercruiser GM V6 engines (including common 4.3L carbureted models) with Thunderbolt IV/V ignition.