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Denso 234-3018 Oxygen Sensor - Upstream
Overview of the Denso OE Style Oxygen Sensor 234-3018
The Denso OE Style Oxygen Sensor 234-3018 is designed specifically for Volkswagen Golf and Jetta models. This heated oxygen sensor features a threaded mounting type and a 38.82-inch wiring harness, ensuring precise fitment and reliable performance.
- Heated sensor type for faster response times
- Specific fit for Volkswagen Golf and Jetta
- Threaded mounting with 0.708-inch thread diameter
- Three-wire configuration with male connector
- 38.82-inch wiring harness length for optimal installation
Detailed Product Description
The Denso 234-3018 oxygen sensor is engineered to meet the exact specifications of Volkswagen Golf and Jetta vehicles. As a heated sensor, it quickly reaches operating temperature, improving fuel efficiency and reducing emissions. The sensor’s three-wire design includes a male connector and a threaded mounting type with a 0.708-inch diameter, ensuring secure installation and compatibility with factory wiring harnesses. The 38.82-inch wiring harness length provides sufficient reach for straightforward replacement without modifications.
About the Denso OE Style Product Line
The OE Style line from Denso focuses on delivering parts that closely match original equipment specifications. This oxygen sensor maintains the quality and fitment standards expected from factory components, making it a reliable choice for Volkswagen Golf and Jetta owners seeking direct replacement parts that integrate seamlessly with their vehicle’s emission control system.
Common Applications and Issues Addressed
- Restores accurate oxygen sensing for optimal air-fuel mixture
- Helps resolve check engine light codes related to oxygen sensor failure
- Improves fuel economy by providing precise feedback to the engine control unit
- Reduces harmful emissions by ensuring proper catalytic converter function
- Eliminates rough idling or engine hesitation caused by faulty sensors
Installation Notes and Tips
When installing the Denso 234-3018 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length and connector gender match the vehicle’s factory harness. Thread the sensor by hand initially to prevent cross-threading, then tighten to manufacturer torque specifications. It is recommended to inspect the wiring and connector for damage before installation.
Quality Assurance and Warranty
Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-3018 sensor is designed to provide reliable operation consistent with original equipment. Warranty coverage details should be confirmed with the distributor or vehicle manufacturer.
| Brand | Denso |
| Part Number | 234-3018 |
| Position | OE Style, Upstream |
| Connector Gender | Male |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 3 |
| Wiring Harness Length | 38.82 |
This part fits 15 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 1992 | Volkswagen | Golf | Upstream | Excluding California.; OE Style | |
| 1992 | Volkswagen | Jetta | Upstream | Exc Calif.; OE Style | |
| 1992 | Volkswagen | Jetta | Upstream | OE Style | |
| 1991 | Volkswagen | Golf | Upstream | Excluding California.; OE Style | |
| 1991 | Volkswagen | Jetta | Upstream | OE Style | |
| 1990 | Volkswagen | Golf | Upstream | OE Style | |
| 1990 | Volkswagen | Jetta | Upstream | Sensor w/ 1 Connector; OE Style | |
| 1989 | Volkswagen | Golf | GL | Upstream | OE Style |
| 1989 | Volkswagen | Golf | Base | Upstream | OE Style |
| 1989 | Volkswagen | Jetta | Upstream | Sensor w/ 1 Connector; OE Style | |
| 1988 | Volkswagen | Golf | GT | Upstream | OE Style |
| 1988 | Volkswagen | Golf | GL | Upstream | OE Style |
| 1988 | Volkswagen | Golf | Base | Upstream | OE Style |
| 1988 | Volkswagen | Jetta | Upstream | Sensor w/ 1 Connector; OE Style | |
| 1987 | Volkswagen | Jetta | Upstream | Sensor w/ 1 Connector; OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.