/live/media/NP/NP_2344561_Fro.jpg)
Denso 234-4561 Oxygen Sensor - Downstream
| Brand | Denso 234-4561 |
|---|---|
| Position | Downstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 12.99 |
| Product line | OE Style |
| Fits | Buick, Chevrolet, GMC, Saab, and Isuzu · 16 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support faster operation and efficient engine performance.
Threaded mounting. Female connector and 4-wire design for a straightforward install.
Cross-references ACDelco 213-3824, ACDelco 213-4203- and Bosch 15130 for the same application. See all 11.
Denso OE Style Oxygen Sensor 234-4561
Denso 234-4561 is a heated, specific-fit oxygen sensor built for downstream applications on select 2006-2007 Buick, Chevrolet, GMC, Isuzu, and Saab vehicles. It is engineered to match OE-style fitment and connector requirements for direct replacement service.
Key Features
- Heated oxygen sensor for downstream exhaust monitoring
- Specific-fit design for direct replacement installation
- 4-wire configuration with female connector
- Threaded mounting type with 0.708 in. thread diameter
- Wiring harness length: 12.99 in.
- OE Style product line focused on factory-like fit and function
OE Style Design and Application
Denso’s OE Style line is built to match original equipment dimensions and connection points for a first-time fit. This oxygen sensor is used on downstream positions for applications including the 2007 Buick Rainier, 2007 Chevrolet Trailblazer, and 2007 GMC Envoy, as well as 2006 Buick Rainier, 2006 Chevrolet SSR, and 2006 Isuzu Ascender. It also fits the 2007 Chevrolet Express 1500, 2007 GMC Savana 1500, and 2007 Saab 9-7x in downstream locations.
The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine performance and fuel economy over time. This part cross-references Bosch 15130 and NTK 21576 for the same application.
What This Oxygen Sensor Helps Address
- Check engine light concerns related to downstream oxygen sensor faults
- Incorrect air-fuel feedback from a worn or contaminated sensor
- Reduced fuel efficiency caused by inaccurate exhaust readings
- Emissions test failures tied to sensor response issues
- Rougher engine operation from degraded oxygen sensor performance
Installation Notes and Tips
Verify the downstream sensor location, connector style, wire count, and thread size before installation. This is a specific-fit, threaded sensor, so matching the vehicle’s OE connector and mounting point is important for proper installation. Confirm the application against the vehicle’s year, make, model, and downstream position before ordering.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards for consistent replacement quality, exact fit, and dependable service life.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2007 | Buick | Rainier | Downstream | OE Style |
| 2007 | Chevrolet | Express 1500 | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2007 | Chevrolet | Express 1500 | Downstream | OE Style |
| 2007 | Chevrolet | Trailblazer | Downstream | OE Style |
| 2007 | GMC | Envoy | Downstream | OE Style |
| 2007 | GMC | Savana 1500 | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 2007 | GMC | Savana 1500 | Downstream | OE Style |
| 2007 | Saab | 9-7x | Downstream | OE Style |
| 2006 | Buick | Rainier | Downstream | 2nd Design; Triangular Downstream Connector; OE Style |
| 2006 | Chevrolet | SSR | Downstream | 2nd Design; Triangular Downstream Connector; OE Style |
| 2006 | Chevrolet | Trailblazer | Downstream | 2nd Design; Triangular Downstream Connector; OE Style |
| 2006 | Chevrolet | Trailblazer EXT | Downstream | 2nd Design; Downstream OE PN 19209816; OE Style |
| 2006 | GMC | Envoy | Downstream | 2nd Design; Triangular Downstream Connector; OE Style |
| 2006 | GMC | Envoy XL | Downstream | 2nd Design; Downstream OE PN 19209816; OE Style |
| 2006 | Isuzu | Ascender | Downstream | 2nd Design; O.E. # 8-12600893-0; OE Style |
| 2006 | Saab | 9-7x | Downstream | 2nd Design; Triangular Downstream Connector; OE Style |
| No rows match your filter. | ||||