I wanted to use OEM creality endstop instead of having to buy new.  If you lost yours you can look on the jungle store and find them for $8 under:   5 Pcs Micro Mechanical Switch 3 Pin Compatible with CNC RAMPS 1.4 RepRap 3D Printer CR-10 10S,S4,S5,Ender 3/Ender 3 Pro/Ender 3 V2 by GUBCUB

You can either reprint the whole part and choose from 2 models or just print the part and glue it like I did.