NTK Lambda Sensor / O2 Sensor NGK 0273 - OZA572-E12
Restore crisp throttle response, stable idle and clean emissions with the genuine NTK Lambda Sensor, also known as an O2 sensor or oxygen sensor. This NGK 0273 unit, NTK reference OZA572-E12, is a direct-fit 4‑wire heated lambda probe designed for the BMW applications listed below. It delivers fast light‑off, precise air‑fuel ratio feedback and OE‑level reliability that enthusiasts and daily drivers trust.
We use this NTK sensor on our own vehicles and customer cars and it has proven consistently reliable with excellent feedback. If you are chasing rich or lean running, poor fuel economy or an emissions warning light, fitting a fresh NTK oxygen sensor is a smart first step.
Why choose this NTK oxygen sensor
- Genuine NTK by NGK - OE quality, trusted worldwide
- Direct replacement for the listed BMW fitments - no cutting or splicing
- 4‑wire heated lambda sensor for quick closed‑loop operation
- Accurate AFR feedback for smooth running and optimal performance
- Ideal for resolving emissions faults and fuel consumption issues
Key details
- Part number: NGK 0273
- NTK reference: OZA572-E12
- Number of circuits: 4
- Cable length: 910 mm
Compatibility - BMW applications
Please verify with our compatibility check before ordering. See the exact models below:
- BMW 3 Series
- 3 Saloon E30
- 316i 1.6 75 kW 102 hp 07/1988 - 06/1991
- 318i 1.8 83 kW 113 hp 09/1987 - 06/1991
- 318i 1.8 85 kW 115 hp 09/1987 - 06/1991
- 3 Touring E30
- 316i 1.6 75 kW 102 hp 09/1991 - 06/1994
- 318i 1.8 83 kW 113 hp 04/1989 - 06/1994
- 318i 1.8 85 kW 115 hp 09/1987 - 06/1991
- 3 Convertible E30
- 318i 1.8 83 kW 113 hp 09/1990 - 10/1993
- BMW 5 Series
- 5 Touring E34
- 518i 1.8 83 kW 113 hp 03/1993 - 09/1994
- 518i 1.8 85 kW 115 hp 09/1994 - 01/1997
- 5 Saloon E34
- 518i 1.8 83 kW 113 hp 08/1989 - 09/1995
- 518i 1.8 85 kW 115 hp 08/1989 - 09/1995
Compatibility check before dispatch
We will confirm fitment before shipping. Provide your UK registration number or the last 7 digits of your VIN at checkout and we will verify the sensor suits your vehicle.
Professional fitting available
Want it installed properly first time? Book fitting with Nforcd in Warwickshire. Request a quote at sales@nforcd.com.
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Part numbers
- NGK: 0273
- NTK: OZA572-E12
If you have any questions or need help confirming the correct NTK lambda probe for your vehicle, contact our team at sales@nforcd.com. We are here to help you get the right part, first time.