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Denso 234-4635 Oxygen Sensor - Upstream
| Brand | Denso 234-4635 |
|---|---|
| Position | Upstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 18.11 |
| Product line | OE Style |
| Fits | Jeep · 2 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps support efficient engine performance and fuel economy.
Threaded mounting. Female connector and 4-wire design for a straightforward install.
Cross-references ACDelco 213-1401, BorgWarner OS1026 and Bosch 13130 for the same application. See all 9.
Denso OE Style Oxygen Sensor 234-4635
Denso 234-4635 is an OE Style heated oxygen sensor built for precise replacement and consistent signal performance. It is a specific-fit sensor for the upstream position on select Jeep Grand Cherokee models, with application coverage for 1999-2000 Jeep Grand Cherokee, California emissions, upstream OE #56028232AA.
Key Features
- OE Style replacement for direct-fit service
- Heated oxygen sensor design for faster operating response
- Specific fit with a threaded mounting type
- 4-wire configuration with female connector
- 18.11 in. wiring harness length
- 0.708 in. thread diameter
- Built to OE standards for accurate replacement fit and function
Product Details
This Denso oxygen sensor is engineered for the upstream location on 1999-2000 Jeep Grand Cherokee applications and is designed to match the original sensor layout. The OE Style line focuses on exact replacement dimensions and connector configuration, helping maintain proper exhaust feedback for engine management. Denso also uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting long-term sensor durability and stable engine operation. This part number, 234-4635, is also referenced for the same application as Chrysler 56028232AA.
What It Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel mixture feedback
- Reduced fuel economy from a slow or inaccurate upstream sensor
- Rough idle or drivability issues tied to exhaust feedback
- Failed emissions testing caused by sensor response problems
Installation Notes and Tips
Verify the connector, wire count, thread diameter, and upstream location before installation. This sensor is a specific-fit, threaded replacement for the listed Jeep Grand Cherokee applications, so matching the original OE number and emissions configuration is important. Use proper exhaust sensor service practices to avoid damaging the sensing element during removal or installation.
Quality Assurance
Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards for fit and performance. The 234-4635 is built as a direct replacement for the listed application, with attention to connector fit, harness length, and sensor response consistency.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Jeep | Grand Cherokee | Upstream | Calif.; Upstream OE #56028232AA; OE Style |
| 1999 | Jeep | Grand Cherokee | Upstream | Calif.; Upstream OE #56028232AA; OE Style |
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