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Denso 234-4629 Oxygen Sensor
Reliable Oxygen Sensor for Ford and Mazda Vehicles
The Denso OE Style Oxygen Sensor 234-4629 is designed specifically for select Ford and Mazda models, including the 626, Millenia, MX-6, and Probe. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.
- Heated sensor type for faster response times
- Specific fit for Ford and Mazda models
- Threaded mounting type with 0.708-inch thread diameter
- Four-wire design with female connector
- Wiring harness length of 13.39 inches for precise installation
About the Denso OE Style Product Line
The OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. This oxygen sensor maintains factory-level performance and fitment, providing a reliable solution for emission control systems in compatible vehicles.
Product Details and Specifications
The Denso 234-4629 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its four-wire configuration supports accurate signal transmission, while the female connector ensures secure electrical connections. The threaded mounting type with a 0.708-inch diameter allows for straightforward installation in the exhaust system. With a wiring harness length of 13.39 inches, this sensor fits precisely in the designated locations on Ford 626, Millenia, MX-6, and Probe models.
Common Applications and Issues Addressed
- Helps resolve rough idling and engine hesitation
- Improves fuel economy by providing accurate oxygen level readings
- Reduces harmful emissions by optimizing air-fuel mixture
- Prevents check engine light triggers related to oxygen sensor faults
- Supports proper catalytic converter function
Installation Notes and Tips
Ensure the vehicle is cool before beginning installation to avoid burns. The threaded mounting type requires proper torque to prevent exhaust leaks. Verify the female connector matches the vehicle’s wiring harness for a secure fit. The 13.39-inch wiring harness length allows for flexible routing but avoid sharp bends or contact with hot components.
Quality Assurance and Warranty
Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details are not provided here, Denso parts typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Denso |
| Part Number | 234-4629 |
| Position | OE Style, Upstream, Downstream Front, Upstream Front, and Downstream Left |
| Wiring Harness Length | 13.39 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Gender | Female |
| Thread Diameter | 0.708 |
| Mounting Type | Threaded |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2002 | Mazda | Millenia | Downstream Left | OE Style | |
| 2001 | Mazda | Millenia | Downstream Left | OE Style | |
| 2000 | Mazda | 626 | Upstream | Excluding California.; OE Style | |
| 2000 | Mazda | Millenia | Upstream Front | OE Style | |
| 1999 | Mazda | 626 | Upstream | Excluding California.; OE Style | |
| 1999 | Mazda | Millenia | Upstream Front | OE Style | |
| 1998 | Mazda | 626 | Upstream | Excluding California.; OE Style | |
| 1998 | Mazda | Millenia | Upstream Front | OE Style | |
| 1997 | Ford | Probe | Automatic | Upstream | OE Style |
| 1997 | Mazda | 626 | Automatic | Upstream | OE Style |
| 1997 | Mazda | Millenia | Upstream Front | OE Style | |
| 1997 | Mazda | MX-6 | Automatic | Upstream | OE Style |
| 1996 | Ford | Probe | Automatic | Upstream | OE Style |
| 1996 | Mazda | 626 | Automatic | Upstream | OE Style |
| 1996 | Mazda | Millenia | Downstream Front | OE Style | |
| 1996 | Mazda | MX-6 | Automatic | Upstream | OE Style |
| 1995 | Mazda | Millenia | Downstream Front | 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.