This ignition switch box power pack is compatible with 50-275HP 3 and 6 cylinder outboard engines, including V-135, V-150, XR4, XR6, and II models.It replaces manufacturer part numbers 332-7778A12, 332-7778A9, 332-7778A6, 332-7778A3, 332-5524A1, 332-7778A1, and 332-7778A7.Designed for outboard engine applications, it operates at temperatures up to 105℃.The unit supports consistent ignition performance in marine conditions and is built to meet industry standards for.Package includes 1 switch box.Suitable for professional or DIY installation, this replacement part maintains stable ignition output across compatible engine configurations.