For Nissan
Frontier 1999 V6 3.3L VG33E Upstream & Downstream-
Frontier 2000 V6 3.3L VG33E Upstream & Downstream Automatic Transmission
Frontier 2003 V6 3.3L VG33E Upstream & Downstream SOHC
Xterra 2000-2003 V6 3.3L VG33E Upstream & Downstream
Wires: 4
Position: Upstream & Downstream
Reference OEM #: 250-23109 234-4700 234-4703
Package Include:
4Pcs Oxygen Sensors(Upstream & Downstream) as Pictured