Broadtune frequently orders pins and plugs in bulk. This means ordering through an ECU manufacturer isn’t always practical. Below is an expanding list of ECU pins and plugs used from common ECU manufactures, which can be ordered directly from a supplier when bulk quantities are required. We always suggest supporting the ECU designers and manufactures when purchasing equipment, but for a ground up custom looms, pins and plugs are used instead of pre-made kit looms.

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These ECU’s use a TE Connectivity Econoseal III 070 plug and pins
M4 & M48 Plug 36 position / 36 pin Possibly others – TE Connectivity Part No. 344111-1 – RS-Online Part Number 909-7747

M4 & M48 Terminals OEM gold plated and larger diameter wires
Standard Gold Plated 16-20AWG –…ies/dp/2310233 – These are the MOTEC supplied terminals
Cheaper 20-16AWG –…awg/dp/2308821 – These are cheaper terminals, which are what most other ECU’s come with
Cheaper 18-14AWG –…-14/dp/1772757 – Larger cable, not really required as the ECU won’t be able to handle the current anyway.


All Haltech equipment use the Super Seal Series of plugs, made by TE Connectivity

Haltech 34 pin – 4-1437290-0 –…tic/dp/2448174
Haltech 26 pin – 3-1437290-7 –…skt/dp/2060327
Terminals – 3-1447221-4 –…imp/dp/2448173
Weather Seals / blanks – 4-1437284-3 –…st=4-1437284-3

CANBUS plug – AMP 8 pin 1376352-1
CANBUS pins – 1123343-1


E420C (Early extruded case)

The black connectors are 174046 and 174047
The white connectors are HM3436 and 3438


179417-1 Small pin
179425-1 Large pin

Modular M2000 M6000

use the TE Connectivity Super Seal Series


MOLEX Mini Fit Jr. Plugs with 5557 series pins


16AWG – 1.5 mm² – Molex 5557 series contact Part No. 39-00-0077 – RS-Oline part number 146-2584 – Used for most wires, injectors, ignition and any higher current stuff.
20AWG – 1 mm² – Molex 5557 series contact Part No. 39-00-0038 – RS Online part number 6706307 – Used for smaller wires if required, but the 16 AWG is usually OK


24 Pin Main Connector – Molex MINI FIT Jr series Part No. 39-01-2245 – RS Online part number 257-6124
4 Pin – Molex MINI FIT Jr Series Part No. 39-01-2048 – RS Online part number 679-5776
6 Pin – Molex MINI FIT Jr Series Part No. 39-01-2065 – RS Online part number 679-5773
8 Pin – Molex MINI FIT Jr Series Part No. 39-01-2085 – RS Online part number 6795785


TE Connectivity Super Seal Series

3-1437290-7 26pin Key1A
3-1437290-8 26 pin Key2B
4-1437290-0 34 Pin Key1A
4-1437290-1 34 Pin Key2B
3-1447221-4 1.0 female pins


R32 GTR ECU – AMP Multilock
Small – Size .040 – 173716-1 – Mouser
Large – Size .070 – 776129-6 – Mouser
Note: These may fit SR20, CA18, RB20, RB30 and most NICS or ECCS ECU’s

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