Rear O2 Oxygen Sensor For Nissan Altima Sentra 240SX – 4-Wire Direct Fit – AM Autoparts

This is a downstream oxygen sensor from AM Autoparts, and it fits a bunch of Nissans from the late 90s and early 2000s—think Altima, Sentra, 240SX, even the Infiniti Q45.

It's a 4-wire sensor with a female connector, thread diameter of M18x1.5.

The part number is AM-13306166, and it replaces a ton of OEM numbers like 226905E410 and 226A06P104.

It's a direct fit, so no universal splicing needed.

The manufacturer warranty is 10 years, which is pretty solid.

Just a heads-up, there's a Prop 65 warning about cancer and reproductive harm, but that's on almost every automotive part sold in California.

If your check engine light is on for an O2 code, this should clear it right up.