AutoMeter Wire Harness Tachometer

Compatible with Model 8199-05702 (5258) 5258

Part #: 5258

Overview

The AutoMeter Wire Harness Tachometer is an essential accessory designed to enhance the functionality of your AutoMeter racing tachometer, specifically model 8199-05702. This wiring harness allows you to interpret a digital RPM signal, which is common to most conventional performance ignition systems and ECUs, providing greater flexibility and compatibility for your high-performance setup. Whether you're a professional racer or an enthusiast building a custom engine management system, this harness ensures your tachometer can seamlessly integrate with your digital signals for accurate RPM readings.

By adding this optional wiring harness, you can bypass the default NASCAR McLaren ECU CANbus setup, enabling direct interpretation of digital RPM signals. This feature is particularly valuable for those who want precise engine monitoring and improved data acquisition during tuning, diagnostics, or racing events. The harness is designed for ease of installation, making it suitable for both experienced technicians and DIY enthusiasts seeking reliable performance upgrades.

Key Features

The AutoMeter Wire Harness Tachometer offers several technical advantages that improve your vehicle's instrumentation capabilities:

• Preterminated positive twist lock connector ensures a secure and reliable connection, reducing the risk of signal loss or interference during high-performance driving.
• Includes 4 feet of power and ground leads, along with 8 feet of trigger leads, providing ample length for flexible routing within your engine bay or cockpit.
• Designed to interpret digital RPM signals from most performance ignition systems and ECUs, broadening compatibility with various engine management setups.
• Constructed with high-quality wiring materials to withstand the harsh conditions of racing environments, including heat, vibration, and electrical noise.
• Facilitates precise RPM readings, supporting accurate engine tuning, data logging, and performance monitoring.
• Easy to install with straightforward wiring connections, minimizing downtime and complexity during setup.
• Compatible with AutoMeter's ultra lightweight carbon fiber racing tachometer models, enhancing your dashboard's functionality without adding unnecessary weight.

Construction & Design

This wiring harness is built with durability and reliability in mind. The leads are made from high-grade insulated wiring capable of withstanding extreme temperatures and vibrations typical in racing and high-performance applications. The positive twist lock connector ensures a secure, vibration-resistant connection to your tachometer, preventing accidental disconnections during intense driving conditions. The harness's length and flexible routing options allow for clean installation within tight engine bays or cockpit areas, maintaining a professional appearance and optimal signal integrity.

Performance & Sound

While this harness does not directly influence engine performance or sound, it plays a critical role in ensuring your tachometer provides accurate and reliable RPM readings. Accurate data is essential for optimal engine tuning, troubleshooting, and performance analysis, especially in high-stakes racing environments. By enabling digital RPM signal interpretation, this harness helps you achieve precise engine monitoring, supporting better decision-making during tuning sessions or competitive events.

Installation & Fitment

Installing the AutoMeter Wire Harness Tachometer is straightforward and requires minimal tools. The harness connects directly to your tachometer's existing wiring port, with the preterminated twist lock connector ensuring a secure fit. The power and ground leads should be connected to your vehicle's electrical system, while the trigger leads are routed to the digital RPM signal source from your ignition system or ECU. No cutting or extensive modifications are necessary, making this harness a plug-and-play upgrade for compatible AutoMeter tachometers.

• Connect the twist lock connector to your tachometer's wiring port.
• Route the 4 ft. power and ground leads to your vehicle's electrical system.
• Extend the 8 ft. trigger leads to your ignition or ECU digital RPM signal output.
• Secure all connections and verify signal integrity before operation.

What's Included

• AutoMeter wiring harness with preterminated twist lock connector
• 4 feet of power and ground leads
• 8 feet of trigger leads
• Installation instructions

Ideal For

This wiring harness is ideal for automotive enthusiasts, racers, and tuners who use AutoMeter tachometers and require digital RPM signal interpretation. It is perfect for custom engine builds, performance upgrades, and racing applications where precise engine monitoring is critical for optimal tuning and reliability.

Emissions Note

This product is designed for racing and off-road use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.