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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, 12.25″ Long, Heated, Direct Fit
O2 Sensor
| Brand |
NTK Oxygen Sensors |
|---|---|
| Part Number (MPN) |
21044 |
| SKU |
21044 |
| UPC / GTIN |
087295210444 / 00087295210444 |
| Condition |
New |
| Position |
Downstream |
| Disclaimer |
WARNING/Precaución: Cancer and Reproductive Harm – Cáncer y daño al sistema reproductivo – |
| Connector Gender |
Male |
| 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 |
Blade |
| Thread Size |
M18.0 x 1.5 |
| UPC |
00087295210444 |
| Wire Quantity |
4 |
| Wiring Harness Length |
12.25 |
| Wrench Size |
7/8″ (22mm) |
| Year |
2005 |
| Make |
Buick |
| Model |
Rainier |
| Body & Trim |
CXL |
| Engine & Transmission |
4.2L L6 – Gas |
| ACDelco |
213-1143, 213-1574, 213-1148, 2131531, 2131633, 2132823, 2132830, 2133530, 213-3537, 2133851, 2133858, 2133909, 2134191 |
| Airtex |
5S10069, 5S10170, 5S4283, 5S4400, 5S5710, 5S8136, 5S8139, 5S8147, 5S8156, 5S8167, 5S8174 |
| BWD |
OS1459, OS2245 |
| BorgWarner |
OS1459, OS1581, OS2133, OS2418, OS2663 |
| Bosch |
13649, 15543, 15860, 15894, 15129, 15434, 15449, 15550, 15696, 16134, 16449, 16451, 16746, 16828, 16938 |
| Carquest |
75-2262, 75-3027, 75-3606, 75-3710, 75-4055 |
| DELPHI |
ES10729, ES20113, ES20094 |
Vehicle Fitment
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