Professional ECU Connector Kits for Standalone Engine Management

The Haltech & FuelTech Superseal ECU Connector Kit includes professional-grade 26-pin and 34-pin motorsport connectors designed for standalone ECU harness construction. Compatible with Haltech and FuelTech platforms, this kit allows builders to fabricate complete engine harnesses, jumper harnesses, or ECU extensions with proper keyway indexing and terminal retention. Available with open barrel or solid terminals, this connector set is ideal for custom motorsport wiring, race applications, and professional harness fabrication.

Commonly used in K-swap and standalone Honda builds alongside our Honda K-Series engine connectors.

Haltech vs FuelTech Keyway Configuration

While both systems utilize 26-pin and 34-pin Superseal connectors, the keying configuration differs between Haltech and FuelTech applications.

Haltech Configuration

• 26-pin: 2 tabs on top, 1 tab on bottom

• 34-pin: 2 tabs on top, 1 tab on bottom

FuelTech Configuration

• 26-pin: 2 tabs on top, 1 tab on bottom

• 34-pin: 2 tabs on top, 2 tabs on bottom

Correct keyway selection is critical for proper ECU fitment. Please confirm ECU model and connector indexing before purchase.

Designed for Motorsport & Custom Harness Fabrication

These connectors are ideal for:

• Standalone ECU harness builds

• Adapter or jumper harness fabrication

• ECU connector replacement

• Race vehicle wiring

• Professional motorsport harness construction

When properly terminated using correct tooling, these connectors provide reliable sealing, terminal retention, and vibration resistance suitable for harsh engine bay environments. For crank, cam, and CAN circuits, pair with our MIL-DTL-27500 Spec 55 shielded cable for professional signal integrity.

Terminal Options Available

This listing allows selection between:

• Open-barrel terminals (preferred for professional motorsport crimping)

• Solid terminals

Each kit includes 2 extra terminals to accommodate installation errors or future service needs.

Single Connector or Full Pair Options

You may select:

• Full 26-pin + 34-pin ECU connector pair

• Single 26-pin connector

• Single 34-pin connector

Connector selection should match your specific ECU configuration and keyway indexing.

Compatible ECU Platforms

Common applications include:

• Haltech standalone ECUs using 26/34 Superseal connectors

• FuelTech ECUs using 26/34 Superseal connectors

• Select MoTeC and other standalone ECUs utilizing compatible Superseal-style keyways

Always confirm connector indexing and cavity layout before installation.

What’s Included (Depending on Selection)

• 26-pin connector housing

• 34-pin connector housing

• Matching terminals

• 2 extra terminals

• Seals (where applicable)

Configuration depends on selected option at checkout.

Complete your custom harness build with matching fuel injector connector kits for a fully integrated wiring solution.

Installation Notes

Professional crimping tools and proper wiring knowledge are required. Incorrect terminal installation may result in poor electrical contact or ECU damage.

These connectors are intended for experienced builders and professional harness fabrication.