Description
The Speedhut 3-3/8″ Humvee 6K Diesel Tachometer (HV3-TC1) is a specialized gauge designed to provide accurate engine speed readings for Humvee (HMMWV) vehicles. This 3 3/8 inch (86mm) tachometer seamlessly integrates with your Humvee’s electrical system by connecting directly to the “A/C,” “W,” or “R” terminal on the OEM alternator. Its clear and functional design ensures easy monitoring of your engine’s revolutions per minute, contributing to informed vehicle operation. The gauge is also designed to fit the Speedhut Humvee Dash Panel (sold separately), offering a cohesive and integrated look for your instrument cluster.
KEY FEATURES AND BENEFITS:
- Accurate RPM Measurement: Reliably displays your Humvee’s diesel engine speed by directly reading the signal from the alternator.
- Humvee Specific Design: Engineered specifically for Humvee (HMMWV) vehicles, ensuring proper fitment and signal compatibility.
- Clear Visibility: Features an LED-lit dial with a black background and white numbers, providing excellent readability during the day. The standard white pointer glows red when illuminated, further enhancing visibility in low-light conditions.
- Integrated Aesthetics: Designed with a stealth black bezel and the option to fit into the Speedhut Humvee Dash Panel (sold separately) for a unified instrument panel appearance.
- Easy Installation (Signal Connection): Connects directly to the designated terminals (“A/C,” “W,” or “R”) on the OEM alternator, simplifying the signal acquisition process.
SPECIFICATIONS:
- Gauge Type: Humvee Tachometer
- Vehicle: Humvee (HMMWV)
- Range: 0 – 6000 RPM
- Size: 3 3/8 inch (86mm)
- Hole Size: 3.375 inches (86mm)
- Units: Standard (RPM)
- Illumination: LED-lit dial (Green glow for numbers, Red glow for pointer)
- Daytime Appearance: Black Background with White Numbers
- Pointer Color: Standard White (Glows Red)
- Bezel Color: Stealth Black
- Included: One Speedhut 3-3/8″ Humvee 6K Diesel Tachometer (HV3-TC1)
HOW TO USE:
- Identify the Correct Terminal: Locate the “A/C,” “W,” or “R” terminal on your Humvee’s OEM alternator. Refer to your vehicle’s service manual if needed.
- Connect the Signal Wire: Connect the tachometer’s signal wire to the identified terminal on the alternator. Ensure a secure and proper connection.
- Connect Power and Ground: Connect the tachometer’s power wire to a suitable 12V power source in your vehicle and the ground wire to a reliable ground point.
- Mount the Tachometer: Install the 3-3/8″ tachometer into a 3.375″ (86mm) diameter opening in your dashboard. If using the Speedhut Humvee Dash Panel (sold separately), mount it within the designated space on the panel.
- Test Operation: Start your Humvee’s engine and verify that the tachometer is receiving a signal and displaying the engine’s RPM accurately.
BENEFITS OF USING THE SPEEDHUT 3-3/8″ HUMVEE 6K DIESEL TACHOMETER (HV3-TC1):
- Provides precise and real-time information about your Humvee’s engine speed, aiding in optimal vehicle operation and maintenance.
- Specifically designed for Humvee vehicles, ensuring compatibility and accurate readings unlike universal tachometers.
- The clear LED illumination ensures excellent visibility of engine RPM, day or night, contributing to safer driving.
- Offers a seamless integration with the Speedhut Humvee Dash Panel (sold separately), enhancing the overall look and functionality of your instrument cluster.
- Utilizes a direct connection to the alternator signal, a reliable method for obtaining accurate RPM data in diesel engines.
FEATURES:
- Alternator Signal Input: Designed to read RPM data directly from the “A/C,” “W,” or “R” terminal of the Humvee’s alternator.
- Dedicated Humvee Fitment: Engineered with the specific dimensions and electrical requirements of Humvee (HMMWV) vehicles in mind.
- Illuminated Display: Employs LED technology to light up the dial for enhanced readability in all lighting conditions.
- Contrasting Color Scheme: Features a black dial with white numerals for clear daytime viewing, transitioning to a green glow at night.
- Red Illuminated Pointer: The white pointer becomes red when the gauge is illuminated, drawing attention to the current RPM reading.
- Stealth Bezel Design: The black bezel offers a subtle and modern aesthetic that complements the Humvee’s interior.
- Compatibility with Speedhut Panels: Specifically designed to fit within the Speedhut Humvee Dash Panel for a cohesive gauge setup.





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