My Account
Shopping Cart

Engineered Marine Products 47-02170 Water Pump Impeller for Mercury Mariner Tohatsu 2-6HP Outboards

Manufacturer

Engineered Marine Products

<h3>About Engineered Marine Products (EMP)</h3><p><strong>Engineered Marine Products</strong> — known throughout the industry as EMP — has been a trusted name in marine engine service parts for over 40 years. <a href="/13199-engineered-marine-products">EMP</a> supplies OEMs, distributors, dealers, and professional rebuilders worldwide with high-quality components designed to keep outboard, sterndrive, and inboard engines running reliably on the water.</p><p>What sets EMP apart is its unwavering commitment to OEM-grade engineering. Every component in the EMP catalog is manufactured to meet or exceed original equipment specifications, giving marine technicians and boat owners confidence that a part will fit correctly and perform consistently in demanding freshwater and saltwater environments.</p><h3>A Comprehensive Marine Parts Catalog</h3><p>EMP&apos;s product range spans virtually every critical system of a marine engine. The brand&apos;s catalog — organized around outboards, inboard/sterndrive, and specialty marine applications — covers fuel systems, gearcases, engine internals, cooling systems, steering and controls, seals and gaskets, transom components, and propellers. This breadth makes EMP a reliable single-source supplier for multi-system service jobs.</p><p>At the heart of the EMP lineup are <a href="/13199-engineered-marine-products-fuel-pumps-201310">marine fuel pumps</a>, including complete assemblies, VRO replacement units, and repair kits engineered to restore dependable fuel delivery across a wide range of Mercury, Mariner, Johnson, Evinrude, and other popular engine brands. Consistent fuel delivery is foundational to smooth starts and efficient engine operation, and EMP&apos;s fuel system offerings reflect that priority.</p><p>EMP is equally well-regarded for its <a href="/13199-engineered-marine-products-trim-and-tilt-units-201108">trim and tilt units</a> and associated <a href="/13199-engineered-marine-products-tilttrim-motors-201071">tilt/trim motors</a> — the hydraulic and electrical components that give boaters precise control over engine angle. Whether trimming out for high-speed performance or trimming in to navigate shallow water, a reliable tilt/trim system is essential, and EMP parts are engineered to hold up to the corrosive marine environment.</p><p>Below the waterline, EMP&apos;s <a href="/200345-drive-gearcase-parts-engineered-marine-products-13199">drive and gearcase parts</a> — including seal kits, bearing carriers, and clutch components for MerCruiser, OMC, Volvo Penta, Mercury, and other drives — provide the precision fitment that underwater gear systems demand. The brand also carries a broad selection of general RV &amp; marine replacement components suited for maintenance across a wide variety of watercraft.</p><h3>Why Marine Professionals Choose EMP</h3><ul style="list-style:disc"><li><strong>OEM-level fitment:</strong> Parts are designed to match original manufacturer specifications for accurate installation.</li><li><strong>Wide application coverage:</strong> EMP supports Mercury/Mariner, Johnson/Evinrude, MerCruiser, OMC, Volvo Penta, Yamaha, and more.</li><li><strong>Durability in harsh environments:</strong> Components are built to withstand saltwater exposure, vibration, and thermal stress.</li><li><strong>Trusted supply chain:</strong> Over four decades of distribution to OEMs, dealers, and rebuilders worldwide speaks to EMP&apos;s consistency and reliability.</li></ul><p>Whether you&apos;re a professional marine technician stocking a service bay or a boat owner tackling seasonal maintenance, Engineered Marine Products delivers the quality and fitment assurance that keeps engines running season after season.</p>

Part Number

47-02170
09/12/2036 5:57 PM
Sale Price

$16.21

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Engineered Marine Products 47-02170 is a premium replacement water pump impeller designed for small outboard motors. This high-quality impeller provides reliable water circulation to maintain proper engine cooling and prevent overheating in marine environments.

Key Features:

  • Premium-grade construction engineered to meet or exceed OEM specifications
  • Durable rubber construction designed to withstand harsh saltwater conditions
  • Precision-molded blades ensure optimal water flow and consistent pump performance
  • Direct replacement for Mercury 47-16154-3, 8M0204676 and Tohatsu 369-65021-1
  • Manufactured by EMP with over 40 years of marine aftermarket experience

Applications:

  • Tohatsu 2-Stroke: M3.5B2, M4C, M5B, M5BS
  • Tohatsu 4-Stroke: MFS2A/B/C, MFS2.5A/B/C, MFS3.5A/B/C, MFS4A2/B/C/D, MFS5A2/B/C/D, MFS6A2/B/C/D
  • Mercury/Mariner 2-Stroke (black leg only): 2hp, 2.5hp, 3.3hp, 4hp, 5hp
  • Mercury/Mariner 4-Stroke: F4M, F5M, F6M

Regular impeller replacement is essential maintenance for outboard motors. Impeller blades can corrode and wear during extended use, especially in saltwater applications. Replace your impeller annually or as recommended by your engine manufacturer to ensure reliable cooling system performance.

good

verthank youy easy would like to have talked to a service rep.

Best price on the item I was looking for.

Best price. Easy order. We will see how the rest goes.

Quick and easy. Just hope it fits my car.

Easy to use

Easy

Going through the screens was eady enough. Prompts were great.

User friendly site and found what I needed quickly.

Great prices!

All Good

Quick an Easy

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy