Quicksilver 8M0087834 TMAP Sensor Assembly Temperature & Pressure MPI

The Quicksilver 8M0087834 TMAP Sensor Assembly is a genuine OEM replacement manifold absolute pressure and temperature sensor designed for MerCruiser V6 and V8 MPI marine engines. The TMAP (Temperature and Manifold Absolute Pressure) sensor monitors both intake air temperature and manifold pressure simultaneously, delivering critical data to the engine control module (ECM) to optimize fuel delivery and ignition timing.

Key Features:

• Genuine Quicksilver OEM part — built to exact Mercury Marine tolerances and specifications
• Measures both intake air temperature and manifold absolute pressure in a single integrated sensor
• Compatible with MerCruiser ECM 555-equipped gasoline engines
• Direct OEM replacement — no modification required
• Backed by a 1-year Mercury Marine factory warranty against defects and workmanship
• Supersedes Mercury Marine part number 885165

Cross-Reference Part Numbers:

• Mercury / Quicksilver: 8M0087834, 885165
• Volvo Penta: 3858987, 3859020

This sensor is a critical component of the engine management system on MPI-equipped MerCruiser sterndrives and inboards. Replacing a faulty TMAP sensor can resolve symptoms such as poor idle, rough running, reduced throttle response, and fuel economy loss. As a genuine Quicksilver part, this assembly ensures reliable performance and a proper fit without the risk associated with generic aftermarket substitutes.