Select your Chevrolet Blazer year
Note
O2 Sensor - B1S1 Indicates Bank 1 Sensor 1, B2S1 Indicates Bank 2 Sensor 1.
| Year | Make | Model | Engine | Note | Location |
|---|---|---|---|---|---|
| 2013 - 2015 | Cadillac | ATS | L4 2.0L | B1S1 | Upstream |
| 2013 - 2016 | Cadillac | ATS | L4 2.5L | B1S1 | Upstream |
| 2014 - 2015 | Cadillac | CTS | L4 2.0L | B1S1 | Upstream |
| 2014 - 2017 | Buick | Regal | L4 2.0L | B1S1 | Upstream |
| 2014 - 2019 | Chevrolet | Corvette | V8 6.2L | Upstream Left, B1S1 or Upstream Right, B2S1 | -- |
| 2015 - 2021 | Chevrolet | Colorado | L4 2.5L | B1S1 | Upstream |
| 2015 - 2021 | GMC | Canyon | L4 2.5L | B1S1 | Upstream |
| 2016 - 2017 | Buick | Envision | L4 2.0L | B1S1 | Upstream |
| 2016 - 2019 | Chevrolet | Malibu | L4 1.8L | B1S1 | Upstream |
| 2016 - 2019 | Chevrolet | Silverado 2500 HD | V8 6.0L | Upstream Left, B1S1 or Upstream Right, B2S1 | -- |
This oxygen sensor is designed to monitor exhaust gas oxygen levels and help maintain the proper air-to-fuel ratio for efficient engine operation. A failing oxygen sensor may lead to reduced fuel economy, rough engine operation, increased emissions, or an illuminated check engine light. Replacing a worn sensor helps restore proper engine function and overall drivability.
Built with durable materials and precision sensing technology, this oxygen sensor delivers accurate readings under demanding driving conditions. The sensor responds quickly to changes in exhaust composition, helping the engine control module adjust fuel delivery for efficient combustion and reduced emissions.
Engineered as a direct replacement for select vehicles, this oxygen sensor offers proper fitment and straightforward installation. It helps support fuel efficiency and reliable engine operation.
Accurate Oxygen Detection
Precision sensing technology provides reliable exhaust gas readings for proper air/fuel balance.
Improved Fuel Efficiency
Helps maintain optimal combustion and supports better fuel economy.
Reduced Emissions
Supports cleaner engine operation by helping regulate fuel delivery.
Durable Construction
Built with high-quality materials designed to withstand heat and harsh exhaust conditions.
Fast Sensor Response
Quickly reacts to changes in exhaust gases for improved engine performance.
Direct Replacement Fit
Designed for proper fitment and straightforward installation.
OE-Style Connector
Includes factory-style connector for secure and reliable connection.