Buy OEM 1994 Kia Part # 392102B420 (39210 2B420, 39210-2B420). Oxygen Sensor (Rear, Upper). 1.6 LITER. 2.0 LITER. Forte; 1.6L; Upper. Forte; 2.0L; Upper. Optima; 1.6L; Front. Sonata; w/o Hybrid; 1.6L

Oxygen. Sensor. Snsr. (RR).
Oxygen Sensor. Assembly -. Ft.

Oxygen Sensor

Fits Forte, Forte Koup, Forte5, Optima

1.6 LITER. 2.0 LITER. Forte; 1.6L; Upper. Forte; 2.0L; Upper. Optima; 1.6L; Front. Sonata; w/o Hybrid; 1.6L; Front. Veloster; Front. W/turbo.
Oxygen Sensor - Repair or Replace
A failed Oxygen Sensor will often have no noticeable symptoms beyond a check engine light, but it does cause your 1994 Kia to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Kia genuine parts.