4" Dual Gauge | Oil Temperature + Oil Pressure | Porsche Design

SKU: R4-DG6-PCH
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$320.93 USD
Two auxiliary readings in one compact gauge, giving you more data without adding clutter. Available in multiple configurations, with independent stepper motors delivering smooth, steady readings you can rely on.
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Order leaves our facility in about 2 Weeks

The Dual Auxiliary Gauge delivers two critical readings in one compact, space-saving design, giving you more information without adding clutter to your dash. Available in multiple combinations like volts, fuel level, oil pressure, and temperature, it adapts to a wide range of builds while keeping installation clean and efficient. Independent stepper motors keep each needle smooth and steady, delivering clear, reliable readings at a glance. Built with a durable housing and solid aluminum bezel, it’s made for real driving conditions and long-term use. Made in the USA and backed for life.

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

Key Features:

  • Dual-Function Display — combines two auxiliary readings in one gauge
  • Flexible Configurations — available in multiple gauge combinations
  • Independent Stepper Motors — smooth, accurate movement for each reading
  • Microprocessor-Driven — real-time accuracy
  • Stepper Motor Precision — smooth, accurate pointer
  • Weather-Resistant Build — built for street, track, and off-road
  • Made in the USA — backed by a lifetime warranty
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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.

If you have just installed the gauge, ensure you are using the sensor provided as other sensors will not work. 

If the gauge does not sweep on startup, it is not getting power. Verify the red, white, black power harness is connected properly.

If it sweeps but is not reading at all, ensure the signal harness is connected and pressed in firmly on both sides.

If it's still not working, test the signal harness for continuity with a multimeter. If you have both probes on the metal terminal and it reads "OL" or 0 ohms, the harness is bad.  Call or email us to get a replacement harness. You can put paperclips in the harness connector if needed to get a good contact point.

If the harness is testing good, the next step is to measure ohms coming from the sensor while it is warm. Refer to the chart below, if the ohm reading is close to 0 or it's an OL, you need a new sensor. We recommend reading the ohms at the gauge side to verify it is getting to the gauge.

Temp Sensor Resistance Chart
Temp CTemp FResistance
(Ohms)
60140238
65.55150199
71.11160168
76.66170144
82.22180125
87.77190108
93.3320094
98.8821082
104.4422071
11023061
115.5524051
121.1125043
126.6626036


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