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Quicksilver 8M0087834 TMAP Sensor Assembly Temperature & Pressure MPI

Manufacturer

Quicksilver

<h3>About Quicksilver</h3><p><strong>Quicksilver</strong> has been a cornerstone of the marine industry since 1950, delivering the parts, accessories, and engine care products that keep boats running at their best. A division of Brunswick Corporation and closely aligned with Mercury Marine, Quicksilver has grown into one of the most trusted names on the water — offering more than 40,000 parts across a broad range of product lines designed for both the weekend boater and the seasoned marine professional.</p><p>What sets Quicksilver apart is its unique position as the premier supplier of Mercury Marine Original Equipment replacement parts, while simultaneously serving owners of nearly every major marine engine brand. Whether your vessel is powered by Mercury, Mariner, Honda, Yamaha, Evinrude/Johnson, or Suzuki, Quicksilver produces components engineered to fit and perform like the originals. This cross-brand compatibility, combined with factory-level quality standards, is why boaters worldwide have made Quicksilver their go-to source for maintenance and repair.</p><p>The Quicksilver catalog spans the full spectrum of marine maintenance needs. At its core are <a href="/7456-quicksilver-fuel-pump-6244">fuel pumps</a> and complete fuel pump and carburetor kit solutions that keep fuel delivery systems operating reliably under demanding on-water conditions. For those needing a broader fuel system overhaul, Quicksilver&apos;s lineup of <a href="/7456-quicksilver-fuel-pumps-201310">fuel pumps</a> covers outboard and sterndrive applications alike. Above the waterline, few components are as performance-critical as the prop, and Quicksilver&apos;s extensive range of <a href="/200673-propellers-quicksilver-7456">propellers</a> — from aluminum to stainless steel — gives boaters the ability to tune their vessel&apos;s performance to their exact needs. Rounding out the drivetrain, Quicksilver also offers precision-engineered <a href="/7456-quicksilver-drives-gearcases-transoms-200346">drives, gearcases, and transom components</a> that are essential for maintaining the mechanical heart of sterndrive and inboard systems.</p><p>Quicksilver products undergo rigorous testing and engineering validation — the result of decades of R&amp;D conducted alongside Mercury Marine&apos;s own engineering teams. The brand&apos;s commitment to quality means that each part meets or exceeds OEM specifications, giving do-it-yourself boaters and marine technicians alike the confidence that a Quicksilver repair will hold up season after season. From freshwater lakes to demanding saltwater environments, Quicksilver is built for wherever your adventures take you.</p>

Part Number

8M0087834
09/16/2036 10:59 PM
Sale Price

$114.24

In Stock (7)

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Product Details

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.

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