Walker Products 350-34596 oxygen sensor for the 2008-2009 Buick LaCrosse V6 3.8L and other vehicles reads the oxygen content of the exhaust gas. Every part number is built for its specific application and fitment position, and it returns the diagnostic feedback the ECU needs.
- Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gas
- Electrodes made of a gas-permeable platinum layer
- Monitors the air-fuel ratio to track combustion efficiency
- Monitors exhaust gases to help reduce pollutants
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
Quick facts
- Part: Walker Products 350-34596 oxygen sensor
- Fits: 2008-2009 Buick LaCrosse V6 3.8L and other vehicles
- Position: Downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel use or a lit check engine light. Before you replace the sensor, rule out a damaged wiring harness or connector by looking them over with the engine off and cool, because those faults can look much the same.
Fits
Among the vehicles it fits are the 2001-2002 Chevrolet Silverado 2500 V8 6.0L and the 2001-2002 GMC Sierra 1500 V8 6.0L. It is a direct-fit replacement for these vehicles. This listing is one sensor, and the 2008-2009 Buick LaCrosse V6 3.8L takes one. If your vehicle isn't named here, enter its year, make, model and engine on the Buyer's Guide tab to check it.
Specifications
Fit and size
- Position: downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per vehicle: 1
Build and materials
- Type: narrow-band
- Wires: 4
- Electrodes: gas-permeable platinum layer
- Condition: new
Interchange: CTK-OSGM4010
