





BMW E53 X5 O2 Sensor-Oxygen Sensor Pre Cat OEM 3.0L 11781742050 is listed under BMW part number 11781742050. This BavariaMotor reference page brings together the key identification and compatibility facts needed before purchase.
BMW part 11781742050 overview
| Part number | 11781742050 |
|---|---|
| Supplier / brand | Bosch |
| Part type | Fuel & Emissions |
| Indicative price | Approximately €75.90 at the time the source data was checked. Prices and availability can change. |
Vehicle fitment
Fitment information is a guide, not a substitute for a VIN check. BMW can use different parts within the same model year.
- Pre Cat Oxygen Sensor (Before Catalyst).Made By Bosch. Part# 11 78 1 742 050 Cross References: 11-78-1-433-075 11 78 1 433 075 11781433075 11-78-1-742-049 11 78 1 742 049 11.78.1.7
- Enhance your BMW's performance and efficiency with the OEM BMW E38 7-Series Pre-Cat O2 Oxygen Sensor. Designed specifically for models manufactured between September 1998 and 2001,
- Upgrade your vehicle's performance with the OEM BMW E46 3-Series Oxygen Sensor (Pre Cat / Before Cat) 11781742050, manufactured by Bosch. This essential component, located before t
- Upgrade your BMW E39 5-Series with the high-performance OEM Pre Cat O2 Sensor, specifically designed for models manufactured between 09/1998 and 2003. Developed by Bosch, a trusted
OEM and cross-reference numbers
117817420501178143307511781742049
Compatibility checks before ordering
- Compare the complete part number, including any superseded number.
- Verify the vehicle VIN, production date, engine and option codes.
- Compare connector, mounting position and left/right orientation where applicable.
- Ask a BMW parts specialist when catalogue data is ambiguous.
Frequently asked questions
Is 11781742050 guaranteed to fit my BMW?
No. Confirm the part against the VIN and the vehicle production date before purchase.
Is the EUR price final?
No. It is an indicative conversion and may exclude delivery, tax, duties or supplier price changes.
Can a superseded BMW number be used?
Often yes, but only after verifying the official replacement chain for the specific VIN.
Compatibility, availability and pricing must be confirmed before ordering.




