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NTK 25639 Oxygen Sensor - Upstream Left or Upstream Right
| Brand | NTK 25639 |
|---|---|
| Position | Upstream Right and Upstream Left |
| Wiring Harness Length | 34.7500 |
| 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 | Ferrari · 2 vehicles |
Direct fit design. Application-specific replacement with OE-style fit, form, and function.
Heated sensor. Built for faster operating response in emission control systems.
OE-tested quality. Manufactured and tested to meet or exceed OE specifications.
Cross-references SKF 13568, 75-1711 and 213-1392 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct Fit Oxygen Sensor for Ferrari 512 M
NTK 25639 is a specific-fit heated oxygen sensor built for direct replacement applications. It is engineered with a threaded mounting design and a 4-wire configuration for precise signal delivery in emission control systems.
Key Features
- Specific-fit oxygen sensor for direct replacement use
- Heated sensor design for faster operating response
- Threaded mounting type with 18 mm thread diameter
- 34.75-inch wiring harness length for application-specific routing
- NTK 25639 part number for easy identification
Detailed Description
NTK 25639 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific replacement coverage and OE-style fit, form, and function. As an oxygen sensor for emission control systems, it is built to match the original sensor layout and electrical configuration used in the vehicle. This part number 25639 is a direct-fit solution for the Ferrari 512 M, with fitment listed for upstream right and upstream left positions.
NTK draws on its background as a major OE oxygen sensor manufacturer and uses controlled ceramic technology in sensor production. Each sensor is extensively tested during manufacturing to support consistent performance and reliability that aligns with OE specifications. For buyers searching for a Ferrari 512 M oxygen sensor or a direct fit oxygen sensor 25639, this part provides a targeted replacement option.
This part cross-references Monroe Shocks & Struts (e.g., 75-1711, 213-1392) for the same application.
What It Is Used For
- Replacing a worn or failed oxygen sensor
- Restoring proper exhaust gas feedback to the engine control system
- Addressing check engine light conditions related to sensor output
- Correcting slow or inaccurate air-fuel ratio readings
- Maintaining emission control system performance
Installation Notes and Tips
Fits 1995 Ferrari 512 M, upstream right. Fits 1995 Ferrari 512 M, upstream left. Verify the threaded mounting style, wire count, and harness length before installation. Use the listed position and notes to match the correct sensor location on the vehicle. The 18 mm thread diameter and 4-wire heated design should be confirmed against the original part before replacement.
Quality Assurance
NTK states that these oxygen sensors are tested during manufacturing to meet or exceed OE specifications. The brand is part of the NGK family of products and is recognized for OE oxygen sensor manufacturing and application coverage.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Ferrari | 512 M | 4.9L | H12 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1995 | Ferrari | 512 M | 4.9L | H12 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| No rows match your filter. | ||||||