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Denso 234-4198 Oxygen Sensor - Downstream Left or Downstream Right
| Brand | Denso 234-4198 |
|---|---|
| Position | Downstream Left |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 33.46 |
| Product line | OE Style |
| Fits | Nissan · 4 vehicles |
OE-style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps support faster operation and efficient engine performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references Bosch 18003, Bosch 18004 and Datsun/Nissan 226A0EK800 for the same application. See all 12.
Denso OE Style Oxygen Sensor for Nissan
Denso 234-4198 is an OE-style heated oxygen sensor built for direct replacement on select Nissan applications. It is engineered for a specific fit with a threaded mounting design, 4-wire configuration, and a 33.46-inch wiring harness for proper routing on the vehicle.
The Denso OE Style line focuses on exact replacement fitment and OE-level construction. This oxygen sensor uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine operation and long service life.
Key Features
- Heated oxygen sensor for faster operating response
- Specific-fit design for direct replacement
- 4-wire, male connector configuration
- Threaded mounting with 0.708-inch thread diameter
- 33.46-inch wiring harness length for routing flexibility
- OE Style construction for Nissan Frontier and Nissan Xterra applications
Detailed Description
This Denso oxygen sensor, part number 234-4198, is built to match OE fit and function for 2004 Nissan Frontier and 2004 Nissan Xterra models in downstream right and downstream left positions. It is a heated sensor with a specific fit design, making it a direct replacement choice for drivers servicing emissions and fuel-control systems on these Nissan trucks and SUVs. This part cross-references Bosch 18003 for the same application.
Denso’s OE Style product line is focused on precision replacement parts that install with the correct fit the first time. The sensor’s protective trap layer helps shield the sensing element from contamination, which supports consistent signal output and dependable performance over time.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel mixture readings
- Reduced fuel economy caused by a failing downstream sensor
- Emissions test failures tied to sensor response issues
- Rough or inconsistent engine management feedback
Installation Notes and Tips
Fits 2004 Nissan Frontier, Downstream Right. Fits 2004 Nissan Frontier, Downstream Left. Fits 2004 Nissan Xterra, Downstream Right. Fits 2004 Nissan Xterra, Downstream Left. Confirm the connector style, threaded mounting point, and harness routing before installation. Use the vehicle’s original sensor location and position-specific application data to ensure correct placement.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for fit, function, and durability. The OE Style design is intended to provide a direct replacement solution with the correct dimensions and sensor configuration for the listed Nissan applications.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | Manual | Downstream Right | OE Style |
| 2004 | Nissan | Frontier | — | Downstream Left | OE Style |
| 2004 | Nissan | Xterra | Manual | Downstream Right | OE Style |
| 2004 | Nissan | Xterra | — | Downstream Left | OE Style |
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