Plastic AMP Superseal Connector Waterproofing/Blanking Pins Only

Critical Sealing for Unused Connector Cavities

In a professional wiring harness, every detail matters. The AMP Superseal Waterproofing/Blanking Pins are an often-overlooked but absolutely critical component for maintaining the integrity of your electrical system. When building a custom harness using AMP Superseal connectors (commonly found on Haltech ECUs like the Platinum Sport and Sprint series, as well as many OEM ECUs), it is rare to utilize every single pin. Leaving an empty cavity open to the atmosphere invites disaster. Moisture, dust, and conductive debris can enter the connector housing through these voids, leading to corrosion of internal buses or short circuits between adjacent active pins. These blanking pins are engineered to fill those voids, completing the environmental seal of the connector.

Engineering Deep-Dive: Maintaining IP Ratings

The AMP Superseal connector system relies on a rear silicone grommet (or individual wire seals, depending on the series generation) to achieve its IP67 rating. However, this rating is only valid if *every* cavity is sealed. These blanking pins are moulded from high-grade, durable plastic designed to mimic the dimensions of a wired terminal. When inserted into an unused position, they compress the sealing membrane just as a wire would, restoring the hermetic barrier of the connector. They also provide mechanical support to the connector housing structure, ensuring the retention mechanism functions correctly.

Operational Benefits: Professional Finish and Reliability

Using blanking pins is the mark of a professional installation. Makeshift solutions like filling holes with silicone sealant are messy, permanent, and often fail over time. These pins snap securely into place and can be removed later if you decide to expand your harness and add a new circuit. They ensure that your ECU and critical electronics remain protected from water intrusion during engine bay washes or wet driving conditions.

Fitment and Compatibility

These blanking pins are designed for:

• AMP Superseal 1.0 Series: Commonly used on Haltech Platinum Sprint 500/RE, Sport 1000/2000, and various MoTeC M800/M84 connectors.
• Connector Sizes: Fits 26 Pin (2 Row), 26 Pin (4 Row), and 34 Pin (4 Row) AMP housings.

Technical Specifications

Summary & Includes

The HT-030052 Pack is an essential accessory for any ECU install using AMP connectors. Don’t compromise your expensive ECU by leaving the door open for water.

Includes:

• Pack of 10 x Plastic Blanking Pins

Installation Note: Push the pin into the unused cavity from the wire-entry side until it sits flush or clicks, depending on the specific housing design. Ensure it is seated fully to engage the seal.