Bosch 7250 Premium Wideband A/F Oxygen (O2) Sensors
Features:
- [BEST-IN-CLASS WARRANTY] – Bosch backs every Oxygen (O2) sensor with a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks, reflecting the quality and durability built into every unit
- [EASY INSTALL] – Engineered for quick installation with direct-fit connectors and pre-applied conductive anti-seize on threads to ensure hassle-free replacement
- Recommend to use OTC 6500 Flexihead O2 Sensor Wrench
- Performance meets or exceeds OE specifications
- [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
- Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
- Direct Fit includes OE Connector for easy installation
- [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
Bosch Wideband A/F Oxygen (O2) sensors provide continuous, high-precision measurements of the air-fuel ratio across the full lambda range, giving the ECU far more detailed information than traditional switching sensors. This enables exceptionally accurate air-fuel mixture control — supporting improved fuel efficiency, engine performance, and reduced emissions under all operating conditions. Bosch pioneered the first Wideband A/F Oxygen (O2) sensor, introducing the planar pump-cell design that has become the global standard for modern engine management and low-emission technologies. With fast light-off, optimized heater control, and robust ceramic construction, Bosch Wideband A/F Oxygen (O2) sensors deliver reliable performance even during rapid load changes and harsh thermal cycles. Backed by more than five decades of OE development, Bosch supplies a full line of durable, accurate Oxygen (O2) sensors to the aftermarket with the same OE-proven quality trusted by vehicle manufacturers.
Attributes:
| Prop 65 Warning Label Required? | No |
| Oxygen Sensor Type | Wide band |
| Mounting Type | Threaded |
| Terminal Gender: | Male |
| Connector Gender: | Male |
| Terminal Quantity | 6 |
| Terminal Type | Blade |
| Automotive Color / Finish | Steel |
| Housing Material | Metal |
| Hex Size (Oxygen Sensor) | 22 mm |
| Heated (Oxygen Sensor) | Yes |
| Automotive Item Weight (lbs) | 0.229281 lb |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | M18 – 1.5 |
| Wiring Harness Included | Yes |
| Connector Shape: | Oblong |
| Overall Length | 23.9 IN |
| Wiring Harness Length | 20.6 IN |
| Wire Quantity | 5 |
| Mounting Bracket Included | No |
| Length (Sealing Surface To End Of Connector) | 22.7 in |
| Grade Type | Standard Replacement |
| Universal Or Specific Fit | Specific |
| Sensor Type | Wide-Band |
Vehicle Applications:
| Make | Model | Years |
| BMW | M5 | 2018 to 2020 |
| BMW | M8 Gran Coupe | 2020 to 2025 |
| BMW | M8 | 2020 to 2025 |


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