This genuine, original equipment (OEM) choke knob fits on the choke lever. Sold individually.
This choke knob was originally produced with a stepped-hole drilled to accept a small set screw ). This screw was used to hold the choke knob to the choke lever. Unfortunately, Nissan has been inconsistent recently on whether the hole for the mounting screw is pre-drilled or not. If the knob you receive does not have a hole pre-drilled, you can either drill a countersink hole for the screw or use a silicone adhesive to install it.