2pcs Autodayplus Upstream & Downstream O2 Oxygen Sensor Set For 2003-2004 Saturn Ion 2.2L – Heated, Direct Fit

This set from Autodayplus includes both the upstream and downstream oxygen sensors for a 2003-2004 Saturn Ion with the 2.2L engine.

You're getting two brand new sensors, each with a 1-year warranty.

They're heated, direct-fit replacements, so no splicing or universal fit headaches.

Thread size is M18*1.5, they attach by screwing in, and they have blade terminals with 4 wires each.

Cross-reference numbers include 234-4646, 234-4819, SG326, and 234-4235.

If your check engine light is on due to an O2 sensor, this pair should get you sorted.