The Bosch Premium Switching-Type Oxygen (O2) Sensors (part number 12028) is a direct-fit replacement for 1978-2002 Buick, Cadillac, Chevrolet, and Daewoo vehicles with 3.8L, 4.3L, and 4.9L engines.
Features:
- [OE-TRUSTED] - As the inventor of the Oxygen (O2) sensor, Bosch has supplied OE manufacturers for more than 50 years, providing proven quality and reliability that set the standard for modern lambda-control systems
- [LONG LIFETIME] - Built to withstand exhaust streams up to 1,880 degF, Bosch Oxygen (O2) sensors feature stainless steel housings, integrated heater elements, advanced ceramic elements, and TSP coating to resist vibration, corrosion, and cont
- [FAST RESPONSE] - Bosch Switching-Type Oxygen (O2) sensors reach operating temperature in <10 seconds and delivers fast signal availability to the ECU, enabling quick closed-loop control for improved cold-start performance and lower emissio
- [EASY INSTALL] - Engineered for quick installation with direct-fit connectors and pre-applied conductive anti-seize on threads to ensure hassle-free replacement
- [MADE IN USA] - Bosch proudly manufactures over 90% of Oxygen (O2) sensors for the North American market out of Anderson, SC - ensuring high quality and supply reliability
Specifications:
| Number of Wires | 2 |
| Number of Terminals | 2 |
| Connector Type | Blade |
| Connector Shape | Oblong |
| Connector Gender | Male |
| Terminal Gender | Male |
| Mounting Style | Threaded |
| Fit Type | Direct Fit |
| Wire Length (mm) | 13 mm |
| Product Grade | Standard Replacement |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.242508 lb |
| Heated (Oxygen Sensor) | No |
| Hex Size (Oxygen Sensor) | 22 mm |
Fits: 1978-2002 Buick, Cadillac, Chevrolet, Daewoo, and GMC models including Century, Electra, Estate Wagon, LeSabre, Regal, Riviera, Skyhawk, Skylark and more - 3.8L, 4.3L, and 4.9L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: Chevrolet 19211435, Daewoo 96377500, Jeep 3240083, Buick 19211435, GMC 19211435, Cadillac 19211435, Oldsmobile 19211435, Pontiac 19211435
