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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: 3 Wire, 12.25″ Long, Heated, Direct Fit
O2 Sensor
| Brand |
NTK Oxygen Sensors |
|---|---|
| Part Number (MPN) |
21004 |
| SKU |
21004 |
| UPC / GTIN |
087295210048 / 00087295210048 |
| Condition |
New |
| Position |
Upstream |
| Disclaimer |
WARNING/Precaución: Cancer and Reproductive Harm – Cáncer y daño al sistema reproductivo – |
| Connector Gender |
Female |
| Connector Shape |
Oval |
| 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 |
3 |
| Terminal Type |
Pin |
| Thread Size |
M18.0 x 1.5 |
| UPC |
00087295210048 |
| Wire Quantity |
3 |
| Wiring Harness Length |
12.25 |
| Wrench Size |
7/8″ (22mm) |
| Year |
1995 |
| Make |
Chevrolet |
| Model |
Astro |
| Body & Trim |
Base |
| Engine & Transmission |
4.3L V6 – Gas |
| ACDelco |
AFS76 |
| Airtex |
5S3124 |
| BWD |
OS148 |
| BorgWarner |
OS148 |
| Bosch |
15700, 13077 |
| Carquest |
75-1706 |
| DELPHI |
ES10007 |
Vehicle Fitment
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