My ebike setup with a Grin Technologies Baserunner and Cycle Analyst has the PAS sensor plugged into the Cycle Analyst leaving the plug on the Baserunner exposed in an area that gets hit with a lot of dirt and debris. This cap just fits over the plug and then can be secured with some heatshrink to make it extra watertight.
Printed on my Ender 3 Pro in PETG.
The author marked this model as their own original creation.