HT-140621 Elite 750 Plug-and-Play Adaptor Harness Only, Mazda Miata/MX-5 NB

Name: HT-140621 Elite 750 Plug-and-Play Adaptor Harness Only, Mazda Miata/MX-5 NB
Brand: HALTECH
SKU: 484-HT-140621
Price: 495.00 USD
Availability: InStock

^$495⁰⁰

Ships on 09/16/2026

Lowest Price Guarantee

Mazda Miata/MX-5 NB

Haltech HT-140621 Features:
If you are using a factory harness and are after an easy ECU upgrade - this is a product for you. These adaptors plug directly into your Haltech ECU and have a set of factory connectors on the other side which plug straight into the factory harness
A simple Haltech Plug'n'Play product that allows you to be up and running in just a few hours
The quick start guide will walk you through installation of the Haltech Plug'n'Play adaptor into your vehicle
HARNESS FEATURES
This harness when installed in conjunction with a Haltech Elite ECU opens the door to virtually limitless performance modification and tuning of your vehicle
Fully programmable systems allow you to extract all the performance from your engine by delivering precisely the required amount of fuel and ignition timing that your engine requires for maximum output under all operating conditions.
Suits: Mazda Miata (MX-5) NB 1.8L Non VCT or VCT (00-04) 1.8L Factory Turbo SE (Aus), Mazdaspeed (04-05 USA) with 3-plug 3-row factory ECU. Manual transmission only.
Includes: Plug'n'Play adaptor harness, M14 x 1.5 air temp sensor with matching plug and pins, auxiliary I/O 16 Pin Tyco plug and pins. waterproof USB cap, USB programming cable.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Engine Management Plug-n-Play Wiring Harnesses for Haltech ECU's

The Haltech Plug-n-Play Harness plugs directly into your Haltech ECU and has a set of factory connectors on the other side that plugs straight into the factory wiring harness. A simple plug-in installation that allows you to be up and running in just a few hours. Includes a quick start guide that walks you through the installation and Software on a CD or USB key.

Part TypeEngine Control Module Wiring Harness

Product LineHaltech Elite ECU Plug-n-Play Harnesses

BrandHALTECH

Package Height2.5

Package Width9.0

Package Length13.0

Weight1.7 PG

Part CategoryPerformance Parts

Vendor Part NumberHT-140621

Package Qty1

Package TypeEA

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