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Engineered Marine Products 75-75012 Thermostat for Mercury Optimax DFI 200-250 HP

Manufacturer

Engineered Marine Products

<h3>Engineered Marine Products: Marine-Grade Reliability for Automotive Systems</h3><p>Engineered Marine Products (EMP) brings precision engineering and marine-grade durability to the automotive aftermarket. With over 1,100 specialized components in their catalog, EMP applies the same rigorous standards required for harsh marine environments to create automotive parts that excel in demanding conditions. This manufacturer has built a reputation for producing components that withstand extreme temperatures, moisture, and vibration—qualities that translate directly to superior performance in automotive applications.</p><h3>Climate Control and Electrical Components</h3><p>One of EMP's core specialties lies in climate control system protection. Their <a href="/13199-engineered-marine-products-hvac-cut-off-switch-4209">HVAC cut-off switches</a> provide critical safety functions for heating and air conditioning systems, automatically interrupting power flow when pressure thresholds are exceeded. These switches serve as essential safeguards against compressor damage and system failures, making them indispensable for maintaining optimal cabin comfort and protecting expensive HVAC components from catastrophic failure.</p><h3>Transmission Control Technology</h3><p>Modern automatic transmissions rely on precise hydraulic control to manage gear changes smoothly and efficiently. EMP's <a href="/13199-engineered-marine-products-automatic-transmission-control-solenoid-7752">automatic transmission control solenoids</a> regulate transmission fluid pressure with exceptional accuracy, ensuring seamless shifts and optimal power delivery. These electro-hydraulic components play a vital role in transmission longevity, as proper solenoid function prevents harsh shifting, slippage, and premature wear of internal clutch packs and bands.</p><h3>Engine Cooling Solutions</h3><p>Maintaining proper engine temperature is fundamental to performance and longevity. EMP manufactures <a href="/13199-engineered-marine-products-engine-water-pump-2208">engine water pumps</a> that circulate coolant throughout the engine block, cylinder heads, and radiator system. Drawing on their marine heritage where cooling system reliability is non-negotiable, these water pumps feature durable construction with corrosion-resistant materials and precision-machined components. A failing water pump can lead to overheating and catastrophic engine damage, making quality replacement parts essential for any cooling system service.</p><h3>Engineering Philosophy</h3><p>What sets Engineered Marine Products apart is their commitment to over-engineering components for extreme conditions. Marine applications demand parts that can handle saltwater corrosion, constant vibration, and temperature fluctuations—challenges that also exist in automotive environments. This design philosophy results in parts with enhanced durability, longer service life, and greater reliability than standard replacement components. Whether you're servicing climate control systems, transmission repairs, or cooling system maintenance, EMP provides components engineered to exceed expectations.</p>

Part Number

75-75012
05/28/2036 11:46 PM
Sale Price

$41.27

3 left at this price

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Product Details

The Engineered Marine Products 75-75012 is a precision-engineered thermostat designed specifically for Mercury and Mariner Optimax DFI outboard motors. This aftermarket replacement thermostat ensures proper engine temperature regulation for 3.0L V6 outboards in the 200, 225, and 250 horsepower range.

Key Features:

  • Direct replacement for Mercury 8M0057307, 885599004, 885599003, and 8855991
  • Compatible with Sierra part number 18-3535
  • Designed for 2000-2014 Mercury Mariner V6 outboards (200-300 HP)
  • 130-degree temperature rating optimized for DFI engine cooling systems
  • Precision-manufactured to OEM specifications for reliable performance
  • Helps maintain optimal engine operating temperature and prevents overheating

This thermostat is engineered to withstand the demanding marine environment and maintain consistent coolant pressure throughout the engine's RPM range. Proper thermostat function is critical for fuel efficiency, emissions control, and long-term engine reliability on Optimax DFI outboards.

first time useing the site

I was able to find the headers I was looking for at a good price and free shipping is a big plus as well.

very easy and fast

Thanks for having the part we needed for a great price!

Great price! Shipping for free, can't real object to the shipping time. Great job overall. Now I have to swap out the radiator.

lowest price, easy checkout

simple process, low price

Thanks for ease of purchase.

Fast shipping and LOWEST PRICES AROUND.

Fast Shipping and best price around!Will buy thier again order#7585

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