This is for a Zzepair zipper repair kit for replacing the zipper slider/head on coolers with an approximately 3/8" wide zipper. Most soft sided coolers use this zipper. See image.
This replacement head comes in two halves that fasten in the center. After alot of testing and re-designs a two piece head was determined to be the only reliable way for a DIY repair. This head also has zipper pull mounting points at the ends where they belong. You will receive the kit shown including 2 feet of black nylon cord to get you up and running. You will also receive a message with instructions.
If you still have your original pull handle you can attach it with the cord. Do not attach any metal rings or metal loops directly to this replacement head. Only use soft nylon or leather cord.
Zippers in general have the zipper pull attached on the top center of the head which means that the zipper is partly pulled and partly pushed. A single zipper pull is more convenient but it can also age these zippers prematurely. A zipper works better and lasts longer with a pull on each end.
Optional zipper stop:
If your zipper is missing the hard plastic U-shaped stop at either end you will need to make a new stop. A stop is required to prevent the new head from sliding off of the end of the zipper teeth. Let me know and I can add a ziptie to your shipment. The best way to add a new stop is to pierce the cooler just above and below the zipper and then run a ziptie through it. The ideal place for the ziptie is actually just before the teeth begin. There is a trade off in doing this. Two fine holes up near the top will leave your cooler 99% watertight but at the moment it's not watertight at all. The holes could also be sealed up with food grade silicone.
While this kit usually does the trick there will be some zippers that are just too far out of spec to get working again. No zipper is perfect including the original one. If this doesn't work for you just return the entire kit within 30 days.
After a year of R&D and prototypes and then production costs plus seller fees, PayPal fees and shipping it's just barely worth it because of all the middle men. I did this to get otherwise perfectly good coolers back into service.