NTK Switching Oxygen Sensor 21513 for 2000-2009 Buick/Cadillac/Chevrolet 3.8L 6.0L (Allure, LaCrosse, Escalade, Escalade EXT)
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The Spectra Premium Oxygen Sensor (part number OS5059) is a direct-fit replacement for 2000-2009 Buick, Cadillac, Chevrolet, and GMC vehicles with 3.8L, 6.0L, and 8.1L engines.
Specifications:
| Sensor Type | Wide-Band |
| Number of Wires | 5 |
| Connector Type | Blade |
| Connector Shape | Trapeze |
| 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: 2000-2009 Buick, Cadillac, Chevrolet, GMC, and Pontiac models including Allure, LaCrosse, Escalade, Escalade EXT, Avalanche 2500, C2500, C3500, C3500HD and more - 3.8L, 6.0L, and 8.1L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: Carquest 751901, Standard Motor Products SG534, Standard Motor Products SG534T, ACDelco 2134253, ACDelco 213921, ACDelco 213922, ACDelco 213939, ACDelco 213941 and 14 more