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Denso 234-4129 Oxygen Sensor - Upstream
| Brand | Denso 234-4129 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 9.84 |
| Product line | OE Style |
| Fits | Chevrolet · 2 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support faster operation and consistent performance.
Threaded mounting. Designed for a secure, straightforward installation.
Cross-references ACDelco 213-949, BorgWarner OS2006 and Bosch 15634 for the same application. See all 9.
Denso OE Style Oxygen Sensor 234-4129
Denso 234-4129 is a heated, specific-fit oxygen sensor built for direct replacement on select emissions control applications. It is engineered for the 1999-2000 Chevrolet Tracker upstream position, with OE-style fitment for a first-time match and dependable signal performance.
The Denso OE Style line focuses on exact replacement fit and OE-level construction. This oxygen sensor uses a threaded mounting design, a male connector, 4 wires, and a 9.84-inch wiring harness length for a clean, application-specific installation on the Chevrolet Tracker.
Key Features
- Specific-fit oxygen sensor for direct replacement
- Heated sensor design for faster operating response
- 4-wire configuration with male connector
- Threaded mounting type with 0.708-inch thread diameter
- 9.84-inch wiring harness length
- OE Style replacement for 1999-2000 Chevrolet Tracker upstream applications
- Cross-reference part numbers include Bosch 15634 and NTK 21507
OE Style Construction
Denso’s OE Style oxygen sensor line is built and tested to OE standards for exact replacement fitment. The 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. Denso 234-4129 is a direct-fit choice for drivers servicing emissions control on the Chevrolet Tracker, especially when replacing an upstream sensor on 1999-2000 models.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio readings
- Poor fuel economy caused by a failing upstream sensor
- Rough idle or hesitation tied to sensor signal issues
- Emissions test failures from a worn oxygen sensor
Installation Notes
Fits 1999-2000 Chevrolet Tracker, upstream. Verify connector style, wire count, thread diameter, and harness length before installation. Because this is a specific-fit threaded sensor, match the original sensor location and routing to avoid wiring strain or fitment issues. Denso 234-4129 is also a strong search match for 1999-2000 Chevrolet Tracker upstream oxygen sensor replacement and OE-style emissions repair.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for precise replacement fitment and consistent performance. The OE Style design is intended to deliver the correct part and fit for the application the first time.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Chevrolet | Tracker | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1999 | Chevrolet | Tracker | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
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