White Plastic Transom Plate for Outboard Motor (Transom Reinforcement)

This white plastic transom plate is designed to reinforce and protect the stern of your boat where an outboard motor is mounted. Made from high-density marine-grade plastic, it can withstand the pressure and vibration from engine clamps or bracket mounts without cracking or deteriorating. By installing this plate on your transom, you create a stable, non-slip surface that evenly spreads the load of the motor, preventing the kind of dents or cracks that can occur when a motor is clamped directly onto the boat’s surface.

We offer this transom plate in two sizes to accommodate different boat and motor sizes. The larger plate is ideal for heavier outboard engines or when a broad area of reinforcement is needed, while the smaller plate is sufficient for lighter motors or limited transom space. Both sizes feature a neutral white color that matches most boats and resists UV damage and weathering. Installation is simple: position the plate on the inside or outside of the transom (depending on your boat design), and bolt it through the transom using the pre-drilled holes or by drilling new holes as required. Once installed, attach your motor mount or clamp your outboard onto the plate’s surface.

This plastic transom reinforcement is a must-have for inflatable boats, RIBs, and older boats with wooden transoms, as it adds strength and extends the life of the transom. It also provides a clean, flat mounting area for auxiliary motor brackets or trolling motors. The plate’s durable construction ensures it will not rot, corrode, or weaken over time, even with constant exposure to water and sun. Investing in a transom plate now can save you costly repairs later and give you peace of mind that your outboard is securely and safely mounted on a protected surface.