EMP Qualifies for Free Shipping EMP Thermostat Brass #75-00403-BR

EMP Thermostat Brass #75-00403-BR

$22.77 $27.18 -17% OFF

EMP Thermostat Brass #75-00403-BR

$22.77 $27.18 -17% OFF

EMP Thermostat Brass #75-00403-BR

$22.77 $27.18 -17% OFF
Brand: EMP

SKU: EMP-75-00403-BR

UPC: 840080411200

More about this item

EMP 75-00403-BR Thermostats & Parts

Your outboard's thermostat is doing quiet, thankless work every time the engine runs. It regulates coolant flow to keep the engine operating in its ideal temperature range, opening to allow flow once the engine reaches operating temperature and closing to retain heat during warm-up. When it fails, the engine either runs too cold and fouls plugs, or overheats and triggers alarms that ruin an otherwise perfectly good day on the water.

The EMP 75-00403-BR is a brass thermostat rated at 147 degrees Fahrenheit, designed for select Mercury and Mariner V6 outboards in the 135 to 200 horsepower range, covering both EFI and carbureted 2-stroke configurations. The brass construction gives it an edge in corrosion resistance compared to standard thermostats, which matters in the saltwater and brackish environments where these engines often spend their time. It is a direct replacement for Sierra part number 18-3553, so if you are cross-referencing from that number, you are in the right place.

Thermostat replacement is a straightforward job that is easy to include in a seasonal service or tune-up. If your engine has been running cooler than normal, taking longer to reach operating temperature, or throwing overheat warnings without an obvious cause, the thermostat is a logical and inexpensive first step in the diagnosis.

Compatibility and specs at a glance:

  • Fits select Mercury and Mariner V6 outboards, 135 to 200 horsepower
  • Compatible with EFI and carbureted 2-stroke configurations
  • Opens at 147 degrees Fahrenheit
  • Brass construction for improved corrosion resistance
  • Replaces Sierra 18-3553
  • Built to OEM specifications by EMP

Normalized SKU: 7500403BR
UPC Code: 840080411200

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This item qualifies for free shipping when the order is over $149
$22.77 $27.18 -17% OFF
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