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MS3-Pro Uncrimped AMPSEAL Connectors
MS3-Pro Uncrimped AMPSEAL Connectors

MS3Pro EVO Uncrimped AMPSEAL Connectors



In stock (can be backordered)


Making your own harness? This plug and pin kit features the MS3-Pro AMPSEAL connectors plus 75 pins (so you’ll have a couple extras) for making your own MS3-Pro EVO harness.  (or Gen1 if you wish)

Download AMPSEAL Assembly Instructions

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Are these AMP connectors compatible with other MegaSquirt products?

  • No.  Even though other MegaSquirt products also use 35-pin AMP connectors, each connector has a unique keying, and each harness has a unique pinout.  These connectors are keyed to fit MS3-Pro ECU only and will not fit other products such as Microsquirt.  This is to prevent someone from accidentally damaging an ECU by using an incorrect harness.

How do I assemble this connector?

Where can I find the MS3-Pro Wiring Schematic for making my harness?

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