Buy 2020 Gmc Sierra 2500 HD SLT Extended Cab Pickup 6.6L V8 A/T 4WD Oxygen Sensor (Rear, Lower). 3.8 EMISSION, Liter, Make - OEM Gmc Part # 12576131 (12596558)

Sensor. Oxygen.
Calif. Oxygen Sensor. Heated (O2) (POSN 1). Ft. Snsr.

Oxygen Sensor

Fits Avalanche 1500, Escalade , Grand Prix, LaCrosse, Sierra 1500, Silverado, Suburban 1500, Tahoe , Yukon, Yukon XL 1500

3.8 liter. 3.8 liter, California. Grand Prix; Front; 3.8L; w/o Supercharger; California. LaCrosse; Front; 3.8L; California. Rear.
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 2020 GMC Sierra 2500 HD to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and GMC genuine parts.