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Mercury MerCruiser  |  SKU: 1751-6454

1751-6454 | Genuine Mercury Mercruiser® PCM Propulsion Control Module

$94900
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Description:
A Propulsion Control Module (PCM) 1751-6454 is an electronic computer that controls and coordinates the system that makes a vehicle move. PCM Propulsion Control Module For Mercury Outboar 225HP, 250HP, 300HP

Part Number: 1751-6454
Condition: New
Manufacture/Brand: Mercury MerCruiser

Fits 1751-6454 For

  • Mercury Outboard 225HP 225HP V8 Sea Pro 2B529482 & Up Electrical
  • Outboard 250HP 250HP V8 2B529482 & Up Electrical
  • Outboard 300HP 300HP V8 2B529482 & Up Electrical
  • Outboard 300HP 300HP V8 Sea Pro 2B529482 & Up Electrical
  • Outboard 250HP 250HP V8 Sea Pro 2B529482 & Up Electric
  • 4.6L 250 HP V8 DTS PCM, 8M0142723, 8M0149471, 8M6005749
  • 4.6L 300 HP Verado PCM 8M0142964, 8M6005749, 8M0148147, PCM112
  • Mercury-Mercruiser,8M0085642, ECM Engine Control Module 8.2L EC.


Purpose of using 1751-6454:

  • Control engine or electric motor output based on accelerator-pedal input.
  • Manage torque and power delivery to the wheels.
  • Coordinate the engine and transmission for smooth acceleration and shifting.
  • Monitor vehicle sensors, such as speed, temperature, pressure, and position sensors.
  • Improve fuel economy by adjusting power and operating conditions.
  • Control emissions-related systems on vehicles with combustion engines.
  • Protect the powertrain if it detects excessive temperature, pressure, or other unsafe conditions.
  • Detect electrical or mechanical problems and store diagnostic trouble codes.
  • Communicate with other vehicle computers through the vehicle's communication network.
  • Control hybrid/electric propulsion systems, where applicable, including coordination between the battery, inverter, and electric motor.


Signs of a Bad PCM 1751-6454:

  • Check Engine or Powertrain warning light comes on
  • Vehicle won't start or has intermittent starting problems
  • Reduced engine/motor power or a noticeable loss of acceleration
  • Engine runs poorly, stalls, or goes into limp/derate mode
  • Transmission shifts incorrectly or may become stuck in one gear
  • Poor fuel economy
  • Erratic throttle response — pressing the accelerator doesn't produce the expected response
  • Engine or motor operates inconsistently
  • Multiple warning lights appear at the same time
  • Communication fault codes between the PCM and other control modules
  • Intermittent electrical problems, where the vehicle works normally one moment and acts up the next
  • Cooling fans or other systems operate incorrectly, depending on how the particular PCM is configured


About the Manufacturer – Mercury MerCruiser:

Mercury MerCruiser is a leading marine engine brand known for its reliable, high-performance inboard and sterndrive power systems. Built by Mercury Marine, MerCruiser engines are widely used in recreational boats for their strong acceleration, smooth operation, and durability. The brand is recognized for combining advanced engineering with easy maintenance, making it a popular choice among boaters and manufacturers worldwide.

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