AEM 3.5 Bar Stainless MAP Sensor Kit – 1/8" NPT Male with -4AN & 3/16 Adapters

The AEM 75 PSIg Stainless Sensor Kit is engineered for high-accuracy pressure monitoring in demanding automotive environments. Designed to measure pressure relative to atmospheric conditions, this sensor is ideal for applications such as oil pressure, fuel pressure, brake pressure, and nitrous systems where vacuum measurement is not required.

What Is PSIg?
PSIg stands for gauge pressure—referencing pressure above atmospheric (0 PSIg at sea level ambient). This makes gauge-style sensors the standard for systems that do not operate in vacuum, such as fuel rails or oiling systems. AEM’s stainless steel PSIg sensors offer superior fluid resistance, repeatability, and long-term reliability under pressure.

Key Features

• Rated to 75 PSIg (approx. 5.2 BAR gauge pressure)

• Stainless steel body with corrosion-resistant sealing

• Accurate to within ±1% of full scale

• 1/8" NPT male thread with included -4 AN adapter and barbed fitting

• Includes weather-resistant connector and pins for secure installation

• Compatible with standalone ECUs, data loggers, and digital dash displays

Best Applications

• Fuel pressure sensors (EFI systems)

• Oil pressure monitoring

• Brake line pressure logging

• Nitrous system pressure feedback

• Use with programmable ECUs or sensor modules where accuracy is key

Brass vs Stainless – The Right Tool for the Job

• Brass Sensor = Ruler – Good for gauges and general info

• Stainless Sensor = Caliper – Required for calibration and ECU input

When accuracy, durability, and reliability matter—AEM’s stainless PSIg sensors are the professional’s choice.