I don't think you will find that's the OEM sender. As far as I'm aware, all the NSR's use a conventional single-pin ("bullet" style) sender with an earthed (grounded) body.
The second wire is a female "spade" terminal (usually with a black plastic connector) that attaches to the thermostat housing.
The parts manual image is a bit small, but it's an accurate representation of the genuine part.
OEM MC28 part number is 37750-KV3-951
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Andy.
NSR-WORLD.COM
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