Notes: Intake Plenum Gasket. Notes:Production: 07/1987-, Plenum to Manifold - 2 per Engine. Notes:Plenum to Manifold - 2 per Engine. 1988 Isuzu Trooper. 1989-1991 Isuzu Trooper 2.6L 4 Cyl. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.