Haltech HT-030011 AMP Superseal 34 Pin Key 2 Plug and Pins Nexus R5 R3 S3 S2

Vehicle Fitment

• Suits Haltech Nexus R5 ECU (Key 2 connector position)
• Suits Haltech Nexus R3 ECU
• Suits Haltech Nexus S3 ECU (Connector C - Key 2 / 34-pin position)
• Suits Haltech Nexus S2 ECU (Connector C - Key 2 / 34-pin position)
• Suits Haltech IC-7 Digital Dash
• Suits Haltech uC-10 Digital Dash
• Suits Haltech IO16 Input/Output Expander

Fitment Notes

• This is the AMP Superseal 34-pin Key 2 (4-keyway) connector - the specific keyway used on Haltech Nexus platform ECUs and accessories. It is NOT interchangeable with the Key 1 (HT-030009) or Key 3 connectors. Confirm connector keyway against your ECU's wiring diagram before ordering.
• On ECUs with two 34-pin connectors (such as the Nexus S3 and S2), this Key 2 plug suits Connector C (the second connector). Connector A uses the Key 1 (HT-030009) plug. Refer to Haltech's wiring diagram for your specific ECU.
• Includes 40 terminals - 34 for the connector positions plus 6 spare pins for backup or replacement use during harness construction.
• Pins are crimp-style - use appropriate crimp tooling compatible with Haltech Superseal terminals for a reliable, weather-resistant termination.

Features

• AMP/Tyco Superseal 34-pin, 4-row, Key 2 (4-keyway) connector - the specific connector for Haltech Nexus ECU and accessory harness builds.
• Key 2 (4-keyway) body physically prevents incorrect mating with Key 1 or Key 3 connectors on multi-connector ECUs, eliminating the risk of connecting the wrong harness plug.
• Weather-resistant Superseal design provides a sealed, moisture-resistant connection for engine bay and competition wiring harnesses.
• 40 terminals included - 34 for connector positions plus 6 spares for backup and error recovery during harness construction.
• Essential for new harness builds, harness repair, or plug replacement on Nexus R5, R3, S3, S2, IC-7, uC-10, and IO16 devices.
• Male (plug) connector to mate with the female ECU header on compatible Haltech Nexus products.

Specifications

• Part Number: HT-030011
• Connector Type: AMP/Tyco Superseal - 34 Pin, 4 Row, Key 2 (4-Keyway)
• Connection Style: Male plug
• Pin Count: 34 positions
• Terminals Included: 40 (34 + 6 spare)
• Weather Resistant: Yes (Superseal design)
• Application: Haltech Nexus R5, R3, S3, S2, IC-7, uC-10, IO16 - Key 2 connector position

Included Components

• 1x AMP Superseal 34-pin Key 2 plug body (4-row, 4-keyway)
• 40x Crimp terminals (34 for positions + 6 spare)

Product Description

The Haltech HT-030011 is the AMP/Tyco Superseal 34-pin Key 2 (4-keyway) plug and pin set - the specific connector used on Haltech Nexus platform ECUs and accessories including the Nexus R5, R3, S3, S2, IC-7 Digital Dash, uC-10 Digital Dash, and IO16 Input/Output Expander. On two-connector Nexus ECUs such as the S3 and S2, this Key 2 plug suits Connector C (the second 34-pin connector); Connector A on those ECUs uses the Key 1 plug (HT-030009). The 4-keyway body physically prevents incorrect connector mating, which is critical on ECUs with multiple 34-pin connectors of different keyways.

The set includes the 34-pin plug body and 40 crimp terminals - 34 for the connector positions plus 6 spares to account for any damaged pins during the crimping process or for future harness modifications. It is the recommended connector for harness builders constructing new looms, repairing existing harnesses, or replacing damaged plug bodies on Nexus platform devices. Use appropriate crimp tooling for Haltech Superseal terminals and refer to the ECU-specific wiring diagram to confirm pin assignments before terminating.