2-1/16" Oil Pressure Gauge | 0–150 PSI with Transducer | Classic

SKU: L2-OP7-LEG
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$220.73 USD
Reads engine oil pressure through a 3-wire military-grade pressure transducer across a 0–150 PSI range. Designed for higher-pressure engine monitoring in classic street rods, custom builds, and performance applications. Precision stepper motor movement keeps readings smooth, stable, and accurate.
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Order leaves our facility in about 2 Weeks

The Classic Oil Pressure Gauge gives you clean, accurate oil pressure monitoring across a 0–150 PSI range, using a 3-wire military-grade pressure transducer for dependable sender-based readings. Built for classic street rods, custom dashes, and higher-pressure performance engine setups, it delivers the pressure data you need with a clean, timeless gauge layout. A microprocessor-driven movement and high-torque stepper motor keep the pointer smooth, stable, and accurate, while the slim case, spin-lock mounting, solid aluminum bezel, and weather-resistant build make it ready for real use. Made in the USA and backed for life.

Track-Tested. USA-Built. Backed for Life.

Key Features

  • 0–150 PSI Range: Tracks higher-range engine oil pressure for performance and custom applications.
  • 3-Wire Pressure Transducer: Uses a military-grade sender for dependable pressure readings.
  • Classic Gauge Styling: Built for clean integration into legacy street rod and custom interiors.
  • Slim Case + Spin-Lock Mounting: Designed for straightforward installation in tight dash spaces.
  • Microprocessor-Driven Accuracy: Internal electronics help maintain real-time reading precision.
  • Stepper Motor Precision: High-torque stepper motor delivers smooth, stable pointer movement.
  • Weather-Resistant Build: Solid aluminum bezel and durable construction built for street, track, and custom applications.
  • Made in the USA with Lifetime Warranty: Built by Speedhut and backed by lifetime warranty coverage on gauge electronics.
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Built to last. Backed for life.
  • Lifetime warranty on internal circuit board electronics
  • 5-year coverage on sensors and wiring
  • Applies to gauges purchased since Jan. 1, 2006

Every Speedhut gauge includes a lifetime warranty* on the electronic circuit board inside the gauge case. It is the core of the gauge — the part responsible for the precision communication that delivers the accuracy and performance Speedhut is known for.

Sensors, wiring, and other external components are covered by an unlimited 5-year warranty.

This combined lifetime / 5-year warranty applies to the original purchaser.
*For your lifetime — as long as you own the gauge — we stand behind it.
Speedhut Inc warrants products to be free from defects in materials or workmanship. This warranty is limited to repair or replacement. Speedhut Inc is not responsible for incidental or consequential damages. Improper use, installation, or unauthorized modifications void this warranty.


Ensure you are using our sensor, most other sensors will not work with our gauges.


With the harness disconnected from the sensor and the gauge powered on, measure the voltage across the red and black wires in the harness at the sensor end. Here you should see 4.9-5 volts. 


Once you have confirmed the voltage, short the red wire to the white wire, this should make the gauge sweep full scale. 


With the harness still disconnected from the sensor, go to key-on or start the car. With the sensor disconnected the gauge should stay at 0 or the bottom of the scale.


If all those turn out normally, next we'll test the sensor. Disconnect the harness from the gauge, and reconnect it to the sensor. Measure voltage between the white wire (signal from sensor) and black wire (ground) and you should see a range between 0.5 to 4.5 volts. You will need to supply power and ground to the sensor while it's disconnected from the gauge. You can use short paperclip pieces if needed.

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