Overview The Christen 803 Oil Separator features welded aluminum construction INa gold cast finish finish. All internal parts are cadmium plated. Unit includes stainless steel positioning clamps. Normally installed on fire wall or on engine mount. Requires 2 AN842-12D or -16D hose elbows & 1 AN823-10D hose fitting. Wt. 2.8 lbs. installed. Applicable to all Lycoming engine applications. Used to replace a worn out or broken oil separator on Christen 801-4 systems only.