View 3 Photos View 0 Videos Western Star 4700 Right Top Plenum Insulation Foam, Part # 18-73330-000 Newly Listed $40 USD Western Star 4700 plenum insulation – top right hand. Used condition Key Specs: Truck: Western Star 4700 Side: Right Hand (RH) Part #: 18-73330-000 Type: Plenum Insulation Foam Material:... ConditionUsedFits To Make(s)Western StarFits To Model(s)4700Part Number18-73330-000Stock NumberP-320 MLS Number14667192CategoryInterior Misc. Parts Last Updated10/15/2026 LocationMonroe, NC, US Sold ByHeavy Duty Truck Repair (844) 435-___ SHOWNUMBERCall Seller Email Seller Save More Info