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NTK 25526 Oxygen Sensor - Upstream
| Brand | NTK 25526 |
|---|---|
| Position | Upstream |
| Wiring Harness Length | 38.7500 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 3 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | Volkswagen · 3 vehicles |
Direct fit design. Application-specific replacement for streamlined installation and OE-style fit.
Heated sensor. Helps the sensor reach operating temperature quickly for responsive feedback.
OE-tested quality. Manufactured and tested to meet or exceed OE specifications.
Cross-references Bosch 13112, 75-2793 and 030906265F for the same application. See all 5.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct Fit Oxygen Sensor
NTK 25526 is a direct fit oxygen sensor built for specific applications and engineered for OE-style fit, form, and function. It is a heated, threaded sensor with a 38.7500 wiring harness length and 3-wire construction for precise signal delivery.
Compatible With 1991-1993 Volkswagen Passat, upstream. This NTK oxygen sensor is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific coverage and streamlined replacement selection. Part number 25526 is also cross-referenced to Bosch 13112 for the same application.
Key Features
- Heated oxygen sensor for faster operating response.
- Specific-fit design for direct replacement applications.
- Threaded mounting type for secure installation.
- 3-wire configuration for controlled sensor output.
- 38.7500 wiring harness length for application-specific routing.
Detailed Description
NTK 25526 is an emission control oxygen sensor designed for import and domestic coverage, with manufacturing backed by NTK's role as a major OE oxygen sensor supplier. The sensor is produced with ceramic-focused technology and tested during manufacturing to meet or exceed OE specifications for quality and reliability. For Volkswagen Passat oxygen sensor replacement needs, this part number 25526 supports the upstream location specified in the fitment data.
What It Is Used For
- Replacing a failed upstream oxygen sensor.
- Restoring air/fuel ratio feedback to the engine control system.
- Addressing sensor-related fault codes.
- Correcting drivability issues tied to inaccurate exhaust oxygen readings.
- Supporting emissions system performance.
Installation Notes and Tips
Verify the upstream location and connector routing before installation. Match the threaded mounting style, wire count, and harness length to the original application. Confirm fitment against the vehicle's exact configuration before ordering.
Quality Assurance
NTK tests these oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1993 | Volkswagen | Passat | 1.8L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1992 | Volkswagen | Passat | 1.8L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1991 | Volkswagen | Passat | 1.8L | L4 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
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