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NTK 25570 Oxygen Sensor - Downstream
| Brand | NTK 25570 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 17.5000 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
| Product line | Direct Fit Oxygen Sensor |
| Fits | Mercedes-Benz · 2 vehicles |
Direct fit replacement. Built for specific-fit oxygen sensor service with OE-style dimensions.
Heated design. Helps the sensor reach operating temperature quickly for responsive feedback.
OE-focused engineering. NTK applies ceramic sensor expertise and manufacturing testing for reliability.
Cross-references Bosch 13431, 75-1586 and 213-1486 for the same application. See all 8.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct Fit Oxygen Sensor for Mercedes-Benz S320
Restore accurate exhaust feedback with this NTK direct fit oxygen sensor, part number 25570. It is a heated, threaded, specific-fit sensor built for downstream service on the Mercedes-Benz S320 and engineered for OE-style fit, form, and function.
Key Features
- Direct Fit Oxygen Sensor line for straightforward replacement
- Heated sensor design for faster operating readiness
- Specific-fit application with threaded mounting
- 4-wire configuration for the listed application
- 17.5-inch wiring harness length
- 18 mm thread diameter
Detailed Description
NTK 25570 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement sensors with OE-style dimensions and connector strategy. NTK is known for oxygen sensor manufacturing and uses ceramic technology control from raw material through finished production. This sensor is built for the downstream position on 1994-1995 Mercedes-Benz S320 models and is intended to match the original equipment equivalent design for proper signal response and installation fit. The same part number 25570 is also referenced in cross-application listings such as Bosch 13431 for the same application.
What It Is Used For
- Replacing a worn or slow-responding downstream oxygen sensor
- Addressing check engine light concerns tied to oxygen sensor performance
- Restoring exhaust mixture feedback to the engine control system
- Correcting drivability issues related to inaccurate sensor output
- Replacing a sensor with damaged threads or wiring
Installation Notes and Tips
Fits 1994-1995 Mercedes-Benz S320, downstream. Verify the threaded mounting style, 4-wire configuration, and harness length before installation. Use the vehicle’s original routing and connector path to avoid strain on the lead. Part number 25570 should be matched to the listed downstream application only.
Quality Assurance
NTK tests these oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications. As part of the NGK family of products, NTK supports import and domestic applications with OE-focused sensor coverage.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Mercedes-Benz | S320 | 3.2L | L6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1994 | Mercedes-Benz | S320 | 3.2L | L6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
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