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Denso 234-4102 Oxygen Sensor - Downstream Left
| Brand | Denso 234-4102 |
|---|---|
| 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 | 21.65 |
| Product line | OE Style |
| Fits | Chevrolet and GMC · 13 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps maintain accurate emissions control and engine performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references ACDelco 213-940, BorgWarner OS2007 and Bosch 13701 for the same application. See all 9.
Denso OE Style Oxygen Sensor 234-4102
Denso 234-4102 is an OE Style heated oxygen sensor built for direct replacement on select Chevrolet and GMC trucks and SUVs. It is engineered for a specific fit and uses a threaded mounting design with a 4-wire male connector for straightforward replacement of the original downstream left sensor.
Key Features
- OE Style replacement oxygen sensor for exact-fit service
- Heated sensor design for faster operating response
- Specific fit application with threaded mounting
- 4-wire configuration with male connector
- 21.65 in. wiring harness length
- 0.708 in. thread diameter
Product Details
This Denso oxygen sensor is manufactured and tested to OE standards for fit and function. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and consistent exhaust feedback. For buyers searching for a downstream left oxygen sensor for 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 GMC Sierra 3500, or 2002 Chevrolet Avalanche 2500, Denso 234-4102 provides a direct replacement solution. This part cross-references Bosch 13701 and NTK 21518 for the same application.
What It Helps Address
- Check engine light caused by a failing downstream oxygen sensor
- Incorrect exhaust oxygen readings affecting fuel control
- Reduced fuel efficiency from degraded sensor response
- Driveability issues related to aging emissions sensors
- Replacement needs on Chevrolet Silverado 2500 HD, Silverado 3500, Suburban 2500, Avalanche 2500, and GMC Sierra/Yukon XL applications
Installation Notes and Tips
Verify the connector style, wire count, thread diameter, and downstream left position before installation. This sensor is a specific-fit, threaded unit, so matching the original routing and mounting location is important for proper installation. Confirm vehicle year and model against the listed applications for 2001-2002 Chevrolet and GMC platforms.
Quality Assurance
Denso OE Style sensors are built to strict original-equipment standards and tested for replacement accuracy. The 234-4102 is designed to deliver the right fit for the listed Chevrolet and GMC applications, including Silverado 2500 HD, Silverado 3500, and related models.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Chevrolet | Avalanche 2500 | Downstream Left | OE Style |
| 2002 | Chevrolet | Silverado 2500 HD | Downstream Left | OE Style |
| 2002 | Chevrolet | Silverado 3500 | Downstream Left | OE Style |
| 2002 | Chevrolet | Suburban 2500 | Downstream Left | OE Style |
| 2002 | GMC | Sierra 2500 HD | Downstream Left | OE Style |
| 2002 | GMC | Sierra 3500 | Downstream Left | OE Style |
| 2002 | GMC | Yukon XL 2500 | Downstream Left | OE Style |
| 2001 | Chevrolet | Silverado 2500 HD | Downstream Left | OE Style |
| 2001 | Chevrolet | Silverado 3500 | Downstream Left | OE Style |
| 2001 | Chevrolet | Suburban 2500 | Downstream Left | OE Style |
| 2001 | GMC | Sierra 2500 HD | Downstream Left | OE Style |
| 2001 | GMC | Sierra 3500 | Downstream Left | OE Style |
| 2001 | GMC | Yukon XL 2500 | Downstream Left | OE Style |
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