2003 Buick Century Oxygen Sensor (Rear, Lower) - 12559850

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Part Number: 12559850

Oxygen. Sensor.
Oxygen Sensor. Heated (O2). Ft. Snsr.

Oxygen Sensor

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 to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.

Diagrams and Kits What This Fits

Assemblies

EMISSION SYSTEM. EMISSION COMPONENTS.

#5

at manifold. cleaner. no. 1. no. 2. post converter.

at manifold. post converter.

Fitment/Applications

This product fits 436 vehicle variants.
Buick: 2 models, 36 variants between 2001 and 2005.
Cadillac: 3 models, 41 variants between 2000 and 2004.
Chevrolet: 6 models, 118 variants between 2001 and 2005.
GMC: 1 models, 40 variants for 2002.
Oldsmobile: 5 models, 75 variants between 1999 and 2004.
Pontiac: 4 models, 126 variants between 2001 and 2005.