37250-ZW5-010ZB FA Tach/Hr Meter Wh - Overview. The 37250-ZW5-010ZB FA Tach/Hr Meter WH is a precision white-faced tachometer and hour meter designed for Honda marine engine systems. This instrument is essential for monitoring engine RPM and operating hours, providing accurate performance data to help maintain your boat's engine in optimal condition. Fully compatible with Honda marine systems, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. K