is a brand new, never installed
Genuine GM / ACDelco Heated Oxygen Sensor (Part Numbers:
213-3528 and
12584925). This original equipment (OE) component is stamped directly by the manufacturing partner,
DENSO, and comes with the factory-installed 4-wire insulated lead and square 4-pin gray connector terminal.
Physical Condition Breakdown:
- Sensor Tip & Threads: Brand new, clean, and entirely free of exhaust carbon or soot. Pristine threads come pre-treated with factory anti-seize compound.
- Casing Markings: Stamped explicitly with laser-etched factory identifiers:
12584925, DENSO, and 149100-7081. - Connector Harness: Gray 4-pin female square terminal. The housing is completely intact with a built-in black push-mount wire routing clip and a blue secondary locking tab. Wires are firmly seated.
- Packaging: Shipped without the cardboard box. The original General Motors inventory tag (
077 21170-398 LC 21 GR. 3.682) is included for verification.
Confirmed Vehicle Compatibility:
This sensor primarily serves as the Front / Position 1 O2 sensor for various General Motors vehicles equipped with 3.5L or 3.9L V6 engines, including:
- 2006–2011 Chevrolet Impala (3.5L / 3.9L)
- 2006–2007 Chevrolet Monte Carlo (3.5L / 3.9L)
- 2009 Buick Lucerne (3.9L)
Note: Please verify that your vehicle's existing sensor uses the square, 4-pin gray terminal connector before purchasing, as layout configurations can vary by model year emissions standards.