37510-PNB-003 TDC Sensor Assembly - Overview. The 37510-PNB-003 TDC Sensor Assembly is a vital part of the ignition system in Honda marine engines. It detects the Top Dead Center (TDC) position of the camshaft and provides accurate position data to the engine control unit (ECU). This sensor ensures precise ignition timing and fuel injection control, supporting smooth and reliable engine operation.. Key Features. OEM Honda component designed specifically for Honda marine engines.. Monitors camshaft position with high accuracy to optimize engine timing.. Provides critical data to the ECU for ignition and fuel injection control.. Manufactured to match factory specifications, dimensions, and tolerances.. Seamlessly integrates with existing hardware and engine systems.. Ensures durability and consistent performance in marine environments.. Why Choose Genuine OEM. Using original Honda parts like the 37510-PNB-003 TDC Sensor Assembly preserves the integrity of your marine engine. OEM parts ma