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Denso 234-4638 Oxygen Sensor - Downstream or Upstream
| Brand | Denso 234-4638 |
|---|---|
| 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 | 10.43 |
| Product line | OE Style |
| Fits | Mitsubishi, Eagle, Dodge, and Plymouth · 19 vehicles |
OE style replacement. Precision-built for an exact, first-time fit.
Heated sensor. Helps support faster operation and consistent performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references ACDelco 213-1333, ACDelco 213-1458 and ACDelco 213-1493 for the same application. See all 27.
Denso OE Style Oxygen Sensor 234-4638
Denso 234-4638 is an OE Style heated oxygen sensor built for direct replacement in specific Mitsubishi and Dodge applications. It is engineered for exact fitment, stable exhaust feedback, and reliable operation in upstream or downstream positions where listed.
Key Features
- Heated oxygen sensor with a 4-wire design
- Specific fit for direct replacement applications
- Threaded mounting type with a 0.708 in. thread diameter
- 10.43 in. wiring harness length for application-specific routing
- Female connector for OE-style electrical connection
- Denso OE Style construction for first-time fit and accurate replacement
- Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination
OE Style Design and Function
The Denso OE Style line is built to match original equipment requirements for fit, form, and function. This oxygen sensor is precision manufactured and tested to OE standards, making it a direct replacement choice for drivers servicing emissions control systems on Mitsubishi Eclipse, Mitsubishi Mirage, Mitsubishi Expo, Mitsubishi Expo LRV, and Dodge Colt applications listed below. Denso 234-4638 is designed to deliver the correct signal to the engine management system so the vehicle can maintain proper air-fuel control and emissions performance.
This part cross-references Bosch 13460 for the same application.
Vehicle Fitment
- Fits 1998-1999 Mitsubishi Eclipse, upstream; excluding California; OE Style
- Fits 1996-1997 Mitsubishi Eclipse, upstream; OE Style
- Fits 1994-1996 Mitsubishi Mirage, upstream; OE Style
- Fits 1995 Mitsubishi Expo, upstream; excluding California; OE Style
- Fits 1994-1995 Mitsubishi Expo, upstream; OE Style
- Fits 1994 Dodge Colt, upstream; OE Style
- Fits 1993-1994 Dodge Colt, downstream; California exempt parts can be used on pollution controlled vehicles in California; OE Style
- Fits 1994 Mitsubishi Expo LRV, upstream; OE Style
- Fits 1993 Dodge Colt, upstream; California exempt parts can be used on pollution controlled vehicles in California; OE Style
- Fits 1993 Mitsubishi Expo, upstream; California exempt parts can be used on pollution controlled vehicles in California; OE Style
- Fits 1993 Mitsubishi Expo LRV, upstream; California exempt parts can be used on pollution controlled vehicles in California; OE Style
- Fits 1993 Mitsubishi Mirage, upstream; California exempt parts can be used on pollution controlled vehicles in California; OE Style
Installation Notes and Tips
Confirm the sensor position, connector style, and thread size before installation. Route the harness to match the original path and avoid contact with hot exhaust components or moving parts. Because this is a specific-fit oxygen sensor, verify the vehicle year, make, model, and upstream or downstream location before ordering Denso 234-4638.
Quality Assurance
Denso manufactures and tests this sensor to OE standards for consistent replacement performance. The design includes contamination protection for the sensing element, supporting long-term accuracy in emissions control service.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1999 | Mitsubishi | Eclipse | — | Upstream | Excluding California.; OE Style |
| 1998 | Mitsubishi | Eclipse | — | Upstream | Excluding California.; OE Style |
| 1997 | Mitsubishi | Eclipse | — | Upstream | OE Style |
| 1996 | Mitsubishi | Eclipse | — | Upstream | OE Style |
| 1996 | Mitsubishi | Mirage | — | Upstream | OE Style |
| 1995 | Mitsubishi | Expo | FWD | Upstream | Excluding California.; OE Style |
| 1995 | Mitsubishi | Expo | AWD | Upstream | OE Style |
| 1995 | Mitsubishi | Mirage | — | Upstream | OE Style |
| 1994 | Dodge | Colt | — | Upstream | OE Style |
| 1994 | Dodge | Colt | — | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1994 | Mitsubishi | Expo | — | Upstream | OE Style |
| 1994 | Mitsubishi | Expo LRV | — | Upstream | OE Style |
| 1994 | Mitsubishi | Mirage | — | Upstream | OE Style |
| 1993 | Dodge | Colt | FWD | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Dodge | Colt | — | Downstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Mitsubishi | Expo | — | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Mitsubishi | Expo LRV | — | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Mitsubishi | Expo LRV | FWD | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| 1993 | Mitsubishi | Mirage | — | Upstream | California exempt parts can be used on pollution controlled vehicles in California.; OE Style |
| No rows match your filter. | |||||