Summary

I have created my own 3D model because the existing one didn't have enough gap and chamfers for easy landing on the shaft.

On the picture:
White gear - Original
Green gear - 3D printed

Gear dimensions:
Teeth number Z=24
OD = 13.09 mm
Pitch = 0.5
Helix angle = 7 degrees
Total length 8.2 mm
Teeth length = 6 mm

Hole adjusted size:
ID = 4.02mm ( increased +0.12mm)
Slot width = 3.12 (increased +0.06mm)

Print Settings

Printer Brand:

XYZprinting

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>da Vinci Jr. 2.0 Mix</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Yes</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>90</p></div></p>                                                    <strong>Filament:</strong> XYZ Printing ABS                    <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Printer: XYZ printing da Vinchi 2.0 Duo<br>Material ABS<br>Due to avoid first layer warp I have added raft &amp; paste (ABS melted in acetone).<br>Layer height 0.2 mm<br>Temperature 210 degrees<br>Table temperature 68 degrees<br>Scale 100%</p></div>

Honda Fit Mirror Gear