Small Coupler Repair Kit W/ Eaton OEM Supercharger Oil Use on Eaton Aftermarket Superchargers Magnuson, TRD, Roush, Allen, Radix Eaton black OEM couplers are made from MolyGard heat stabilized, internally lubricated, 30% glass-reinforced nylon (not a cheap coupler) 8oz Eaton OEM Supercharger oil (1) Eaton Small Supercharger Coupler (1) Syringe for old oil removal (old oil smells very bad) .