/live/media/NP/NP_2344722_Fro.jpg)
Denso 234-4722 Oxygen Sensor - Upstream or Upstream Left
| Brand | Denso 234-4722 |
|---|---|
| Position | Upstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 18.11 |
| Product line | OE Style |
| Fits | Mazda · 9 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps maintain accurate emissions monitoring.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references ACDelco 213-3016, BorgWarner OS1791 and BorgWarner OS1792 for the same application. See all 17.
Denso OE Style Oxygen Sensor 234-4722
Denso 234-4722 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for precise signal control in the exhaust stream, helping maintain proper air-fuel management on select Mazda applications, including Mazda Miata and Mazda Protege.
The OE Style line focuses on direct-fit replacement parts that match factory-style dimensions and connector design. This sensor uses a threaded mounting design, a female connector, 4 wires, and an 18.11-inch wiring harness length for a specific-fit installation.
Key Features
- Heated oxygen sensor for faster operating response
- Specific fit design for direct replacement
- 4-wire configuration with female connector
- Threaded mounting type with 0.708-inch thread diameter
- 18.11-inch wiring harness length
- Built to OE standards for fit and function
- Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
Product Details
Denso 234-4722 is designed for upstream oxygen sensor locations on select Mazda vehicles. It fits 2004-2005 Mazda Miata, upstream; 2001-2003 Mazda Protege, upstream; 2000-2001 Mazda MPV, upstream left; and 1999-2000 Mazda Protege, upstream. This part cross-references Bosch 13887 and NTK 22513 for the same application.
As an OE Style replacement, this sensor is built to match factory specifications closely, which helps simplify installation and restore proper sensor response. For buyers searching for a Mazda Miata oxygen sensor replacement or a Mazda Protege upstream O2 sensor, Denso 234-4722 provides a direct-fit option with the correct connector and mounting style.
Common Issues This Part May Address
- Check engine light related to oxygen sensor performance
- Slow or inaccurate upstream sensor readings
- Rough fuel control caused by a worn sensor
- Reduced fuel economy from aging exhaust sensor feedback
- Contamination-related sensor degradation from silicone or lead exposure
Installation Notes and Tips
Confirm the vehicle year, model, and sensor position before ordering. This part is specific fit, so connector style, wire count, and threaded mounting should match the original sensor. Inspect the harness routing and exhaust threads before installation, and verify the upstream or upstream-left location on the vehicle.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent fit and performance. The OE Style design is intended to deliver the correct part and fit for the listed Mazda applications, including Mazda Miata and Mazda Protege, with the part number 234-4722.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Mazda | Miata | Upstream | OE Style |
| 2004 | Mazda | Miata | Upstream | OE Style |
| 2003 | Mazda | Protege | Upstream | OE Style |
| 2002 | Mazda | Protege | Upstream | OE Style |
| 2001 | Mazda | MPV | Upstream Left | OE Style |
| 2001 | Mazda | Protege | Upstream | OE Style |
| 2000 | Mazda | MPV | Upstream Left | OE Style |
| 2000 | Mazda | Protege | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Mazda | Protege | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| No rows match your filter. | ||||