Mercury MerCruiser Quicksilver Pressure Sensor 8M0157742

Mercury / MerCruiser Quicksilver Pressure Sensor 8M0157742

The Mercury Quicksilver 8M0157742 is a genuine OEM water pressure sensor kit designed to monitor the engine cooling system water pressure on select Mercury and MerCruiser engines. It provides real-time pressure data to the engines monitoring system, helping detect cooling problems before overheating occurs.

Key Specifications

• Part Number: 8M0157742

• Type: Water pressure sensor

• Pressure Range: 050 PSI

• OEM Brand: Mercury Marine / Quicksilver

• Construction: Composite body with corrosion-resistant fittings

Compatible Engines

Commonly used on:

MerCruiser Sterndrive & Inboard Engines

• 305 CID (5.0L) V8

• 350 CID (5.7L) V8

• 377 CID V8

• 496 CID (8.1L) V8

• 502 CID V8

Mercury Outboards

• 110200 HP 2-stroke

• 2.5L Jet

• Pro XS

• DFI

• SST models

These applications typically use the sensor as part of the engine monitoring system to track cooling water pressure.

Function

The pressure sensor measures cooling water pressure in the engine block or cooling circuit and sends the reading to the engine control system or gauge.

This helps:

• Monitor cooling system performance

• Detect restricted water flow

• Prevent engine overheating

• Trigger alarms or warnings if pressure drops too low

Superseded / Cross-Reference Numbers

This sensor may replace earlier Mercury numbers such as:

• 8M6000623

• 8818793

• 881879010

Fitment Tip:
Always verify compatibility using the engine model and serial number. Mercury uses several pressure sensors with different PSI ranges depending on the cooling system and engine generation.

Shipping: Ships same or next day for fast Canada wide shipping.