NTK Switching Oxygen Sensor 21048 for 2000-2008 Buick/Chevrolet/GMC 3.8L 3.1L (Allure, Century, LaCrosse, LeSabre)
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The Spectra Premium Oxygen Sensor (part number OS5210) is a direct-fit replacement for 2000-2007 Buick, Chevrolet, GMC, and Isuzu vehicles with 3.8L, 3.1L, and 5.3L engines.
Specifications:
| Sensor Type | Wide-Band |
| Number of Wires | 4 |
| Connector Type | Blade |
| Connector Shape | Square |
| Connector Gender | Female |
| Terminal Gender | Female |
| Mounting Style | Screw |
| Thread Size | M18 - 1.5 |
| Hex Size (mm) | 0.875 |
| Heated | Yes |
| Fit Type | Direct Fit |
| Wire Length (mm) | 16 mm |
| Wire Gauge (AWG) | 20 AWG |
Fits: 2000-2007 Buick, Chevrolet, GMC, Isuzu, and Oldsmobile models including Allure, Century, LaCrosse, LeSabre, Lucerne, Park Avenue, Rainier, Regal and more - 3.8L, 3.1L, and 5.3L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: ACDelco 2131552, ACDelco 213800, ACDelco 213816, ACDelco 213818, NTK 21573, Isuzu 8125731680, Isuzu 8192567310, Isuzu 8253338120 and 12 more