Part Type: Accessory Drive Belt Idler Pulley. 1990 Ford E-350 Econoline Club Wagon Engine: 5.8LL V8; Smooth Pulley; w/Factory Installed Air Conditioning;. 1991 Ford E-350 Econoline Club Wagon Engine: 5.8LL V8; Smooth Pulley; w/Factory Installed Air Conditioning;.