Sierra Throttle Position Sensor for MerCruiser Marine Engines

The Sierra Throttle Position Sensor (TPS) is a direct replacement sensor for MerCruiser sterndrive and other GM-based marine engines. It monitors throttle position and sends that signal to the engine control module (ECM). The ECM uses the signal to help manage fuel delivery and ignition timing. It is also called a throttle sensor, TPS sending unit, or throttle position sender.

Key Features:

• Accurate throttle position sensing for smooth engine response
• Designed to replace the original MerCruiser TPS on fuel-injected marine engines
• Helps maintain proper fuel and ignition control
• Built for the demands of marine use
• Cross-references to common OEM and aftermarket part numbers, including Mercury/MerCruiser, Crusader, Mallory, CDI and others, depending on the part number
• Backed by Sierra's reputation for marine replacement parts

Sierra has made marine engine, drive, and electrical replacement parts for many years. This sensor line gives boat owners and marine technicians a dependable way to restore throttle response and engine management performance. Choose the specific part number for your engine from the options listed on this page.