/live/media/NP/NP_2344123_Fro.jpg)
Denso 234-4123 Oxygen Sensor - Upstream
| Brand | Denso 234-4123 |
|---|---|
| Position | 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 | 12.99 |
| Product line | OE Style |
| Fits | Honda · 5 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate emissions control and engine performance.
Threaded mount. Installs with a secure, specific-fit connection.
Cross-references ACDelco 213-2922, BorgWarner OS510 and Bosch 15710 for the same application. See all 9.
Denso OE Style Oxygen Sensor for Honda Civic
Denso 234-4123 is a heated, specific-fit oxygen sensor built for direct replacement on select Honda Civic applications. It is engineered for the upstream position on 2001-2005 Honda Civic models and uses a 4-wire, male connector design for a precise OE-style connection.
The OE Style line focuses on exact replacement fitment and factory-style performance. Denso builds and tests these sensors to OE standards, and the sensor design includes an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination.
Key Features
- Specific-fit oxygen sensor for select Honda Civic upstream applications
- Heated sensor design for faster operating response
- 4-wire configuration with male connector
- Threaded mounting type with 0.708 in. thread diameter
- Wiring harness length: 12.99 in.
- OE Style replacement from Denso
- Part number: 234-4123
Product Details
Denso 234-4123 is intended for drivers replacing a worn upstream oxygen sensor on 2001-2005 Honda Civic models. As an OE Style part, it is built for first-time fit and direct installation in the original sensor location. The heated design helps the sensor reach operating temperature efficiently, while the specific-fit construction supports accurate replacement of the factory unit. This part cross-references Honda 36531PMSA01 for the same application.
Common Issues This Sensor May Address
- Check engine light related to oxygen sensor performance
- Rough idle or inconsistent air-fuel control
- Reduced fuel economy from an aging upstream sensor
- Slow sensor response or inaccurate exhaust readings
- Emissions test failure tied to sensor degradation
Installation Notes
Verify the upstream position and connector style before installation. Confirm thread diameter, wire count, and harness length against the original sensor on the vehicle. For 2001-2005 Honda Civic service work, Denso 234-4123 is a direct-fit replacement that matches the specified OE-style application.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent fit and function. The OE Style line is designed around exact replacement requirements, and the protective trap layer is included to help resist contamination that can shorten sensor life.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Honda | Civic | Upstream | OE Style |
| 2004 | Honda | Civic | Upstream | OE Style |
| 2003 | Honda | Civic | Upstream | OE Style |
| 2002 | Honda | Civic | Upstream | OE Style |
| 2001 | Honda | Civic | Upstream | OE Style |
| No rows match your filter. | ||||