Mercedes Eaton OEM Coupler Repair Kit 

W/ Eaton OEM Supercharger Oil

Look at pictures 2 & 3 for Mercedes Supercharger

1. Genuine Eaton OEM Supercharger Oil 8 oz 
2. (1) Eaton Supercharger Coupler - Eaton black OEM couplers are made from MolyGard heat stabilized, internally lubricated 30% glass-reinforced nylon (not a cheap coupler)
3. (1) Syringe for old oil removal (old oil smells very bad)