NTK Switching Oxygen Sensor 21528 for 1996-2004 Buick/Chevrolet/GMC 3.1L 2.2L (Century, LeSabre, Park Avenue, Regal)
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The Spectra Premium Oxygen Sensor (part number OS5046) is a direct-fit replacement for 1996-2005 Buick, Chevrolet, GMC, and Isuzu vehicles with 3.1L, 2.2L, and 3.8L 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) | 14 mm |
| Wire Gauge (AWG) | 20 AWG |
Fits: 1996-2005 Buick, Chevrolet, GMC, Isuzu, and Oldsmobile models including Century, LeSabre, Park Avenue, Regal, Rendezvous, Riviera, Camaro, Impala and more - 3.1L, 2.2L, and 3.8L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: Carquest 751909, Standard Motor Products SG277, Standard Motor Products SG277T, ACDelco 2131681, ACDelco 213938, ACDelco AFS116, ACDelco AFS123, ACDelco AFS141 and 37 more