OE Quality
60-Day Returns

Denso 234-4074 Oxygen Sensor - Upstream
Overview of the Denso OE Style Oxygen Sensor 234-4074
The Denso OE Style Oxygen Sensor 234-4074 is designed specifically for Honda Civic models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 16.14-inch wiring harness, ensuring a direct fit and reliable operation.
- Heated oxygen sensor for accurate emissions readings
- Specific fit for Honda Civic vehicles
- Threaded mounting with 0.708-inch thread diameter
- 16.14-inch wiring harness length for proper installation
- Four-wire design with male connector for secure connection
Detailed Product Features and Specifications
The Denso 234-4074 oxygen sensor is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. Its four-wire configuration includes a male connector, facilitating a secure and stable electrical connection. The sensor’s 0.708-inch threaded mounting ensures compatibility with the exhaust system of Honda Civic models. The 16.14-inch wiring harness length allows for proper routing and installation without the need for extensions or modifications.
About the Denso OE Style Product Line
The OE Style product line from Denso focuses on delivering parts that meet original equipment specifications for direct replacement. This oxygen sensor maintains the quality and fitment standards expected from factory-installed components, making it a reliable choice for maintaining the emissions system integrity in Honda Civic vehicles.
Common Applications and Issues Addressed
- Restores accurate oxygen level readings for optimal air-fuel mixture
- Helps resolve check engine light triggers related to oxygen sensor faults
- Improves fuel economy by ensuring proper emissions control
- Reduces exhaust emissions by maintaining sensor responsiveness
- Prevents engine performance issues caused by faulty sensor signals
Installation Notes and Tips
When installing the Denso 234-4074 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 0.708-inch threaded sensor to prevent damage. Verify the wiring harness length of 16.14 inches is sufficient for your Honda Civic’s exhaust routing. Confirm the male connector aligns properly with the vehicle’s wiring harness for a secure fit.
Quality Assurance and Warranty
Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-4074 sensor is backed by Denso’s quality assurance protocols, providing confidence in its fit and function for Honda Civic applications. Warranty details are provided by the manufacturer and should be reviewed prior to installation.
| Brand | Denso |
|---|---|
| Part Number | 234-4074 |
| 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 | 16.14 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2003 | Honda | Civic | Upstream | OE Style |
| 2002 | Honda | Civic | Upstream | OE Style |
| 2001 | Honda | Civic | Upstream | OE Style |
| 2000 | Honda | Civic | Upstream | OE Style |
| 1999 | Honda | Civic | Upstream | OE Style |
| 1998 | Honda | Civic | Upstream | 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.