Key Features
0–100 PSI Measurement Range
Perfect for:
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Oil pressure monitoring
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EFI fuel pressure systems
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Carbureted fuel systems
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Boosted engines needing stable fuel pressure under load
AEM 30-4401 0-100 PSI Oil or Fuel Pressure Gauge
Fast-Response Digital Display
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Bright, high-contrast LED readout
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Sweeping outer LED ring
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Interchangeable black/silver bezels & faces
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Standard 52mm (2-1/16”) gauge size
X-Series Electronics
AEM’s newest controller logic offers:
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Faster refresh rate
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More accurate pressure readings
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Better stability at high temperatures
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Improved ECU/datalogger compatibility
Analog & Serial Outputs
Allows clean integration with:
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Standalone ECUs (Haltech, AEM, Motec, Link, etc.)
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Piggyback systems
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Data loggers
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AEM CD-Series digital dash displays
Universal Motorsports Compatibility
Works with:
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Turbocharged builds
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High-RPM NA engines
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Return and returnless fuel systems
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Oil pressure safety circuits
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Drag, drift, road racing, track day cars
Why Monitoring Pressure Matters
Oil and fuel pressure are two of the most important parameters in any performance engine.
Subtle drops can signal:
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Fuel pump weakness
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Injector starvation
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Oil pickup cavitation
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Bearing wear
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High-RPM oiling loss
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Boost-related fuel pressure failures
The 30-4401 gives you instant visibility so you can catch issues before they become catastrophic.
Installation Notes
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Requires a compatible AEM pressure sensor (0–100 PSI)
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For oil pressure: use a remote line to prevent sensor damage from vibration
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For fuel pressure: ensure the fitting matches your rail or regulator
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Avoid routing wiring near exhaust heat
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Analog output can be wired to ECU for pressure-based safety triggers
Average install time: 30–60 minutes depending on sensor location.
Final Verdict
The AEM 30-4401 0–100 PSI Oil or Fuel Pressure Gauge is a versatile, accurate, and fast-responding pressure monitor ideal for any serious build.
With its X-Series electronics, clean digital display, and universal compatibility, it’s the perfect upgrade to protect your engine and fuel system from failure.
Whether you’re boosted, high RPM, or just want proper engine protection — this gauge belongs in your cockpit.
James –
Very nice gauge, high quality and easy to mount. The extra face plates were a big sell for me so I could make them look how I wanted. The only complaint I have is the short sensor wire leads. I would have liked them to be about double the length to make routing into the engine bay easier. The gauges are easy to read, and look perfect in my car.
F. Piano –
I am very happy with my sensor; it has been working great for six months. It comes with everything you need and the wiring is well-suited for the application. The only thing I had to find was a 90 degree NPT adapter because the sensor wouldn’t clear my steering rack on my particular application.
WelLRoundeDSquarE –
As with all AEM products I have purchased the quality is excellent. I have their AFR Gauge, Oil/Fuel pressure gauge and Vacuum / Boost gauges. All three of them are extremely accurate and responsive. In fact if I had any complaints it would be that they are too responsive. The AFR (air:fuel ratio) is so responsive it”feels” erratic. I would love to figure a way to use a Capacitor to “buffer” it’s responsiveness which would make it more readable. Aside from that minor detail I love their products.Thanks, Tony <:/)
JYS –
I found this to be priced very competitively, Product works like all other AEM products, very well.
William –
I bought this because it said it was for oil and fuel. It also said it came with face plates to customize your look. It only came with a black and white oil face plate. I purchased this item years ago for another car and it came with both oil and fuel face plates. Now I have to spend an additional $22 for the correct gauge face.
peggieWho –
I am very pleased with this gauge. The LED display give me a wide range, the different included face plates let me match existing colors and use it for fuel or oil. The outside sweep dial is cool, but I can’t really see it from where I mounted the gauge.
coty –
Great Quality product that AEM makes here, and it looks great on my dash. Its fits me cpe Gauge pod well
Amazon Customer –
good