Easy installation Designed for straightforward replacement of worn or corroded anode blocks. This Trim Tab Anode makes installation simple and allows timely replacement to continuously protect the key components of your marine engine. Durable construction Made from a high-strength aluminum alloy, this trim tab anode resists oxidation and harsh seawater environments. Its rugged design delivers long-lasting performance in saltwater conditions, providing reliable protection for marine applications. Replacement compatibility Replaces OEM part number 822157T2, offering a direct fit for Mariner 25 and 50 engines (2-stroke and 4-stroke) and Force Outboard Lower Units manufactured between 1997 and 2006. Always verify that the OE number matches your existing part for seamless compatibility and optimal performance. Protect your motor The trim tab anode acts as a sacrificial component, shielding propeller shafts and bearings from damaging underwater electrolysis. By corroding first, it extends the life of these critical parts and helps maintain the engine’s efficiency. Use scenarios - Saltwater or brackish water boats with Mariner 25/50 two-stroke or four-stroke engines and Trim Tab systems, where ongoing anode protection is needed. - Force Outboard Lower Units from 1997–2006 in coastal environments, where electrolysis risk is higher and regular anode replacement is beneficial. - Seasonal or routine maintenance on boats with trim tab assemblies, replacing the worn OEM anode to ensure continuous protection of the propulsion system.