ACDELCO 19473526
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$19.89
Price
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$0.00
Core
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+ Sold in packs of 1x1
Pack
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$19.89
Total
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![](/Images/MoreInfo/install.png) O2 Sensor Identification Guide An OBD Scan Tool will usually identify Oxygen Sensors by the Bank Number (B1 = Bank 1) and Sensor Number (S1 = Sensor 1). Bank 1 will always contain Cylinder 1, which is located closest to the front of the engine.
Part manufacturers often use different terms than scan tools to identify sensor positions. Regardless of the vehicle's engine orientation, the right or left bank is determined by viewing the engine from the rear (opposite the drive belts).
A Upstream Sensor (Before Converter)
B Downstream Sensor (After Converter)
C Left or Front Upstream Sensor (Before Converter)
D Right or Rear Upstream Sensor (Before Converter)
![](/Images/MoreInfo/bulb.png) Common O2 Sensor Contaminants Oxygen (O2) Sensors commonly fail due to contamination. When checking or replacing an O2 Sensor, visually inspect the sensor body to determine if it has been contaminated by a faulty part or substance upstream, and correct the fault before replacing the sensor.
ANTIFREEZE POISONING |
Common Causes:
- Cracked or warped cylinder head
- Leaking cylinder head gasket
- Leaking intake manifold gasket
Antifreeze Poisoned O2 Sensor |
SILICONE POISONING |
Common Causes:
- Use of an improper silicone gasket sealant on the engine
Silicone Poisoned O2 Sensor |
CARBON BUILDUP |
Common Causes:
- Clogged air filter
- Leaking or defective fuel injector
Carbon Buildup O2 Sensor |
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
GM ORIGINAL EQUIPMENT |
GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
ACDELCO GOLD (PROFESSIONAL) |
ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
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ACDELCO Warranty Information:Limited Lifetime: Gold Series: Belts & Hoses, Chassis Parts, Universal Joints
7 Year / Unlimited Mile: Gold Series Double Platinum Spark Plugs, Gold Series Iridium Spark Plugs
4 Year / Unlimited Mile: Iridium Improved Performance Spark Plugs
3 Years: Rapidfire Performance Spark Plugs
24 Month / Unlimited Miles: Gold Series: Air Conditioning Products, Bearings,
Brakes, Conventional Spark Plugs, Electronics, Emission Control Products, Engine Components,
Filters, Fuel Pumps, Glow Plugs, Ignition parts, Light Bulbs, Marine Spark Plugs, Other Fuel Products,
Power Steering Pumps, Rack-and-Pinion Gears, Starters and Alternators, Steering & Drive Products, Thermostats/Caps, Transmission Products, Water Pumps, Window Motors, Window Regulators, Wipers, Wires & Cables
12 Month / Unlimited Miles: Silver Series: Bearings, Brake Parts, Chassis Parts, Wipers
Warranty Details |
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