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Denso 234-4049 Oxygen Sensor - Upstream
Overview of the Denso OE Style Oxygen Sensor 234-4049
The Denso OE Style Oxygen Sensor 234-4049 is designed specifically for select Chevrolet, Geo, Pontiac, and Suzuki models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.
- Heated sensor type for faster response times
- Specific fit for Chevrolet Firefly, Geo Metro, Pontiac Firefly, Suzuki Swift, Tracker, and Vitara
- Threaded mounting type with 0.708 inch thread diameter
- Four-wire design with a male connector for secure electrical connection
- Wiring harness length of 14.96 inches for proper installation
Detailed Features and Specifications
The Denso 234-4049 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its specific fitment ensures compatibility with Chevrolet Firefly, Geo Metro, Pontiac Firefly, Suzuki Swift, Tracker, and Vitara models, providing a direct replacement without modification. The sensor includes a 14.96-inch wiring harness and a male connector with four wires, facilitating a reliable electrical connection. The threaded mounting type with a 0.708-inch diameter allows for secure installation in the exhaust system.
About the Denso OE Style Product Line
The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor is engineered to match the fit, form, and function of the factory-installed sensor, ensuring consistent performance and durability. The OE Style designation indicates that this sensor is designed for specific vehicle applications, providing a precise fit and reliable operation.
Common Applications and Problem Resolution
- Restores accurate oxygen sensing for proper air-fuel mixture control
- Helps resolve check engine light issues related to oxygen sensor faults
- Improves fuel economy by ensuring efficient combustion
- Reduces harmful emissions by maintaining proper sensor function
- Prevents engine performance problems caused by faulty sensor readings
Installation Notes and Tips
When installing the Denso 234-4049 oxygen sensor, ensure the vehicle is compatible with the specific fitment list including Chevrolet Firefly, Geo Metro, Pontiac Firefly, Suzuki Swift, Tracker, and Vitara. Use proper tools to avoid damaging the threaded mounting. Verify the wiring harness length and connector gender match the vehicle’s harness for a secure connection. It is recommended to replace the sensor when the engine is cool to prevent injury.
Quality Assurance and Warranty
Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure reliability and durability. The OE Style 234-4049 sensor is built to provide consistent performance aligned with original equipment specifications. Warranty coverage details should be confirmed with the distributor or installer.
| Brand | Denso |
| Part Number | 234-4049 |
| Position | OE Style, Upstream |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 14.96 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2001 | Chevrolet | Metro | Upstream | OE Style |
| 2001 | Suzuki | Swift | Upstream | OE Style |
| 2000 | Chevrolet | Metro | Upstream | OE Style |
| 2000 | Chevrolet | Tracker | Upstream | Excluding California.; OE Style |
| 2000 | Pontiac | Firefly | Upstream | OE Style |
| 2000 | Suzuki | Swift | Upstream | OE Style |
| 2000 | Suzuki | Vitara | Upstream | Excluding California.; OE Style |
| 1999 | Chevrolet | Metro | Upstream | OE Style |
| 1999 | Chevrolet | Tracker | Upstream | Excluding California.; OE Style |
| 1999 | Pontiac | Firefly | Upstream | OE Style |
| 1999 | Suzuki | Swift | Upstream | OE Style |
| 1999 | Suzuki | Vitara | Upstream | Excluding California.; OE Style |
| 1998 | Chevrolet | Metro | Upstream | OE Style |
| 1998 | Pontiac | Firefly | Upstream | OE Style |
| 1998 | Suzuki | Swift | Upstream | OE Style |
| 1997 | Geo | Metro | Upstream | OE Style |
| 1997 | Pontiac | Firefly | Upstream | OE Style |
| 1997 | Suzuki | Swift | Upstream | OE Style |
| 1996 | Geo | Metro | Upstream | OE Style |
| 1996 | Pontiac | Firefly | Upstream | OE Style |
| 1996 | Suzuki | Swift | Upstream | OE Style |
| 1995 | Geo | Metro | Upstream | OE Style |
| 1995 | Pontiac | Firefly | Upstream | OE Style |
| 1995 | Suzuki | Swift | Upstream | OE Style |
| 1994 | Geo | Metro | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1994 | Pontiac | Firefly | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1994 | Suzuki | Swift | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.