The Bosch Premium Wideband A/F Oxygen (O2) Sensors (part number 17404) is a direct-fit replacement for 2016-2021 BMW vehicles with 3.0L engines.
Features:
- [OE-TRUSTED] - As the inventor of the Oxygen (O2) sensor and Wideband A/F technology, Bosch has supplied OE manufacturers for more than 50 years, providing proven quality and reliability that set the standard for modern lambda-control syste
- [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 Wideband A/F Oxygen (O2) sensors reach operating temperature in <7 seconds and delivers fast signal availability to the ECU, enabling quick closed-loop control for improved cold-start performance and lower emissions
- [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 | 5 |
| Connector Type | Blade |
| Connector Shape | Oblong |
| Connector Gender | Male |
| Terminal Gender | Male |
| Heated | Yes |
| Fit Type | Direct Fit |
| Product Grade | Standard Replacement |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.249122 lb |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 13.8 in |
| Mounting Type | Threaded |
Fits: 2016-2021 BMW models including 340i, 340i GT xDrive, 340i xDrive, 440i, 440i Gran Coupe, 440i xDrive, 440i xDrive Gran Coupe, 540i and more - 3.0L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: BMW 11788644371
