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NTK 21536 Oxygen Sensor - Downstream
| Brand | NTK 21536 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 72.7500 |
| 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 | Chevrolet · 4 vehicles |
Direct fit design. Specific-fit replacement for the listed oxygen sensor application.
Heated sensor. Reaches operating temperature quickly for stable signal performance.
OE-level testing. Manufactured and tested to meet or exceed OE specifications.
Cross-references BBB Industries 13479, Bosch 13450 and Delphi ES20138 for the same application. See all 12.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Direct Fit Oxygen Sensor
NTK Oxygen Sensor 21536 is a specific-fit, heated oxygen sensor built for direct replacement applications. It uses a threaded mounting design with a 4-wire configuration and a 72.75-inch harness for the listed downstream applications.
Key Features
- Heated oxygen sensor for faster operating response.
- Specific-fit design for direct replacement use.
- Threaded mounting type with 18 mm thread diameter.
- 4-wire construction with 72.75-inch wiring harness.
- NTK 21536 is engineered for OE-style fit, form, and function.
Detailed Description
NTK 21536 is a direct fit oxygen sensor from the Direct Fit Oxygen Sensor line, built for emission control service where accurate exhaust feedback is required. As a heated sensor, it is designed to reach operating temperature quickly and maintain consistent signal performance in the listed applications. This part number, 21536, is specified for 1996 Chevrolet Beretta and 1996 Chevrolet Corsica downstream positions. NTK 21536 also cross-references Bosch 13450 for the same application.
NTK is known for oxygen sensor manufacturing across import and domestic coverage, and this sensor is manufactured and tested to meet OE-level expectations for fit and reliability. The threaded design and specific-fit configuration support straightforward replacement in the correct application.
What It Is Used For
- Replacing a failed downstream oxygen sensor.
- Restoring exhaust feedback for fuel control systems.
- Addressing check engine light concerns tied to sensor performance.
- Correcting drivability issues caused by inaccurate oxygen readings.
- Servicing emission control faults on the listed Chevrolet applications.
Installation Notes and Tips
Verify the connector, thread size, and harness length against the original sensor before installation. This part is a specific-fit oxygen sensor for the listed downstream applications, so confirm vehicle coverage by year, make, model, and position before ordering. Use proper exhaust sensor service procedures to avoid damage to the sensing element or wiring.
Quality Assurance
NTK states that its oxygen sensors are extensively tested during manufacturing to meet or exceed OE specifications. The brand also draws on original equipment oxygen sensor manufacturing experience to support fit and reliability in service.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1996 | Chevrolet | Beretta | 3.1L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Chevrolet | Beretta | 2.2L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Chevrolet | Corsica | 3.1L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Chevrolet | Corsica | 2.2L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
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