Zipper Slider/Pull Replacement - Repair a zipper without replacing it - YouTube
CARHARTT ZIPPER REPAIR
Amazon.com: Zipper Repair Kit Solution YKK 8 Sets Auto Lock Sliders Assorted 2 of #5, 2 of #7 , 2 of #8 and 2 of #10 Included Top & Bottom Stops - Made in USA (YKK Brass Auto Lock Sliders)
How to repair a zipper on a Carhartt coat - YouTube