Part Type: Fuel Injection Plenum Gasket Set. Plenum Gasket Set. 1999 Nissan Frontier Engine: 3.3L V6; Position: Upper;. 2000 Nissan Frontier Engine: 3.3L V6; Position: Upper;. 2001 Nissan Frontier Engine: 3.3L V6 Naturally Aspirated;EngineCode: VG33E; Position: Upper;.