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NTK 25053 Oxygen Sensor - Upstream
| Brand | NTK 25053 |
|---|---|
| Position | Upstream |
| Wiring Harness Length | 30.2500 |
| 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 · 5 vehicles |
Direct fit design. Built for specific applications with OE-style fit, form, and function.
Heated sensor. Helps the sensor reach operating temperature quickly for responsive feedback.
OE-level testing. Manufactured and tested to meet or exceed OE specifications for reliability.
Cross-references BBB Industries 13314, Delphi ES10276 and DENSO Auto Parts 234-4712 for the same application. See all 12.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct Fit Oxygen Sensor for Mercedes-Benz
NTK 25053 is a direct fit heated oxygen sensor built for specific applications and threaded mounting. It uses a 4-wire design with a 30.2500-inch harness length and an 18.000 thread diameter for a precise replacement on the correct exhaust location.
Fits 1994-1995 Mercedes-Benz E320, upstream. Fits 1993 Mercedes-Benz 300CE, upstream. Fits 1993 Mercedes-Benz 300E, upstream. Fits 1993 Mercedes-Benz 300TE, upstream.
Key Features
- Direct fit design for specific applications
- Heated oxygen sensor construction for faster operating response
- 4-wire configuration
- Threaded mounting type
- 30.2500-inch wiring harness length
- 18.000 thread diameter
Detailed Description
NTK 25053 is part of the Direct Fit Oxygen Sensor line, created to streamline replacement selection while maintaining OE-style fit, form, and function. NTK draws on its background as a major original equipment oxygen sensor supplier and uses controlled ceramic technology from raw material through finished sensor production. For Mercedes-Benz E320, 300CE, 300E, and 300TE applications, this sensor is specified for the upstream Bank 1 Sensor 1 location and supports air/fuel ratio feedback in the exhaust stream.
This part cross-references Delphi ES10276 and DENSO Auto Parts 234-4712 for the same application.
What It Is Used For
- Replacing a worn or slow-responding oxygen sensor
- Restoring accurate air/fuel ratio feedback
- Addressing sensor-related fault codes
- Correcting poor fuel control caused by aging sensor output
- Replacing a damaged threaded sensor or harness connection
Installation Notes and Tips
Confirm the upstream Bank 1 Sensor 1 location before installation. Match the threaded mounting style, wire count, and harness length to the original sensor. Verify connector routing and exhaust thread condition before tightening the replacement sensor.
Quality Assurance
NTK tests oxygen sensors during manufacturing to meet or exceed OE specifications for quality and reliability.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Mercedes-Benz | E320 | 3.2L | L6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1994 | Mercedes-Benz | E320 | 3.2L | L6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1993 | Mercedes-Benz | 300CE | 3.2L | L6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1993 | Mercedes-Benz | 300E | 3.0L | L6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 1993 | Mercedes-Benz | 300TE | 3.2L | L6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
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