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Denso 234-4779 Oxygen Sensor - Downstream
| Brand | Denso 234-4779 |
|---|---|
| Position | Downstream |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 32.68 |
| Product line | OE Style |
| Fits | Mercury and Nissan · 6 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps support faster operation and consistent performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references ACDelco 213-1487, ACDelco 213-2914 and BorgWarner OS1063 for the same application. See all 22.
Denso OE Style Oxygen Sensor 234-4779
Denso 234-4779 is an OE Style heated oxygen sensor built for specific-fit replacement on select Nissan Quest and Mercury Villager applications. It is engineered for downstream placement and uses a threaded mounting design with a 4-wire male connector for direct replacement service.
Key Features
- OE Style replacement oxygen sensor for precise fitment
- Heated sensor design for faster operating response
- Specific fit application with 32.68 in. wiring harness length
- 4-wire configuration with male connector
- Threaded mounting with 0.708 in. thread diameter
- Built to Denso OE standards for replacement accuracy
Product Details
Denso’s OE Style line focuses on exact replacement fit and consistent sensor performance. This oxygen sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. For drivers searching for a downstream oxygen sensor for 1998-2000 Nissan Quest or 1998-2000 Mercury Villager, part number 234-4779 provides a direct-fit solution that matches the original application requirements.
This part cross-references Bosch (e.g., 15857, 15881) for the same application.
What It Helps Address
- Check engine light related to downstream oxygen sensor faults
- Incorrect air-fuel feedback from a worn sensor
- Reduced fuel economy caused by inaccurate exhaust readings
- Rough idle or drivability issues tied to sensor degradation
- Slow sensor response after contamination or age-related wear
Installation Notes and Tips
Fits 1998 Mercury Villager, downstream. Fits 1999-2000 Mercury Villager, downstream. Fits 1998 Nissan Quest, downstream. Fits 1999-2000 Nissan Quest, downstream. Confirm the connector style, threaded mounting, and harness length before installation. Use the vehicle’s original routing path to keep the lead clear of hot exhaust components and moving parts.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for replacement accuracy and first-time fit. The OE Style design is intended to match original equipment specifications for the listed applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Mercury | Villager | Downstream | Excluding California.; OE Style |
| 2000 | Nissan | Quest | Downstream | Excluding California.; OE Style |
| 1999 | Mercury | Villager | Downstream | Excluding California.; OE Style |
| 1999 | Nissan | Quest | Downstream | Excluding California.; OE Style |
| 1998 | Mercury | Villager | Downstream | OE Style |
| 1998 | Nissan | Quest | Downstream | OE Style |
| No rows match your filter. | ||||