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NTK is the world’s largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle’s on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
NTK OE Type Oxygen Sensor
Switching Oxygen Sensor: 4 Wire, 15.25″ Long, Heated, Direct Fit
O2 Sensor
| Brand |
NTK Oxygen Sensors |
|---|---|
| Part Number (MPN) |
21539 |
| SKU |
21539 |
| UPC / GTIN |
087295215395 / 00087295215395 |
| Condition |
New |
| Position |
Upstream, Upstream Front, Upstream Rear, Downstream Left, Downstream Right, Downstream |
| Disclaimer |
WARNING/Precaución: Cancer and Reproductive Harm – Cáncer y daño al sistema reproductivo – |
| Connector Gender |
Female |
| Connector Shape |
Square |
| Grade Type |
Standard Replacement |
| Heated |
Yes |
| Hex Size |
7/8″ (22mm) |
| Mounting Type |
Threaded |
| PADB ID 557 |
18.00 |
| Sensor Type |
Narrow-Band |
| Technology |
Switching Zirconia Type |
| Terminal Gender |
Female |
| Terminal Quantity |
4 |
| Terminal Type |
Pin |
| Thread Size |
M18.0 x 1.5 |
| UPC |
00087295215395 |
| Wire Quantity |
4 |
| Wiring Harness Length |
15.25 |
| Wrench Size |
7/8″ (22mm) |
| Year |
2000 |
| Make |
Buick |
| Model |
Century |
| Body & Trim |
Custom |
| Engine & Transmission |
3.1L V6 – Gas |
| ACDelco |
213-2868, AFS106, AFS109, AFS125, AFS135, AFS95, 2131529, 2132826, 2133545, 2133839, 213802, 213947 |
| Airtex |
5S3120, 5S3121, 5S3127, 5S3133, 5S3165, 5S4405, 5S8160, 5S8173, 5S8182 |
| BWD |
OS216, OS823, OS824, OS839 |
| BorgWarner |
OS2009, OS216, OS2248, OS2451, OS2469, OS823, OS824, OS839 |
| Bosch |
13016, 13452, 13474, 13488, 13507, 13193, 15136, 15546, 15896 |
| Carquest |
75-1726 |
| DELPHI |
ES10012, ES10013, ES10066, ES10076, ES10083, ES20000, ES20001, ES20319 |
Vehicle Fitment
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