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The Perfect Hemi Main Harness, Early, W/ Tps & Iac Limited Time 85% Off [DMGRmLCx]

$70.99 $227.99 -69%

HEMI Main Harness: Early Model with TPS & IAC The HEMI Main Harness, Early Model with TPS & IAC, is a specialized wiring solution designed for Gen III HEMI engines equipped with an aftermarket cable actuated throttle body. This high-quality harness i

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HEMI Main Harness: Early Model with TPS & IAC

The HEMI Main Harness, Early Model with TPS & IAC, is a specialized wiring solution designed for Gen III HEMI engines equipped with an aftermarket cable actuated throttle body. This high-quality harness is an essential component for integrating a Holley EFI ECU with your engine, ensuring seamless communication and optimal performance. With its robust construction and precise engineering, this harness is built to withstand the demands of high-performance applications.

Key Features and Specifications

The HEMI Main Harness is engineered to provide a direct and reliable connection between your Holley EFI ECU and the Gen III HEMI engine. It features TPS (Throttle Position Sensor) and IAC (Idle Air Control) connections, which are crucial for maintaining precise engine control and smooth idle operation. This harness also supports the use of most stock sensors, ensuring compatibility with a wide range of vehicles. Additionally, it includes two optional connectors for interfacing with CAN-based Holley modules, offering flexibility and expandability for your custom setup.

Practical Uses and Benefits

Whether you're upgrading your engine for performance or looking to install a Holley EFI system, the HEMI Main Harness is the perfect choice. Its comprehensive design allows for easy installation and integration with other components such as injector harnesses, coil harnesses, and ignition modules. This harness is compatible with most stock sensors, reducing the need for additional modifications and ensuring a hassle-free installation process. With its robust construction and reliable performance, the HEMI Main Harness is a must-have for any Gen III HEMI engine owner seeking to enhance their vehicle's performance and efficiency.

What Our Customers Say

December 31, 2025

Absolutely no complaints!

The best that I have bought in a long while.

- Crystal P..

December 31, 2025

Absolutely no complaints!

Excellent build quality for this low price.

- Aniya Q..

December 31, 2025

Absolutely no complaints!

It’s a perfect combination of value and build.

- Rylee U..

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