NTK/NGK 1975 Oxygen O2 Lambda Sensor OTA7N-5D2 - BMW Z3 3.2 E36 1997-2001, Volvo S40 I 1.8/2.0 1995-2003 - Upstream/Downstream (Pre/Post Cat) AFR Exhaust Gas Probe B1S1/B1S2 Direct Fit OE Replacement

NTK by NGK Group 1975 Oxygen Lambda Probe - OTA7N-5D2

Restore crisp throttle response, stable idle and clean emissions with this OE-grade exhaust oxygen probe from NTK. The NGK 1975 sensor delivers precise mixture control so your engine runs as it should, helping improve fuel consumption and MOT readiness on vehicles that require this reference.

We fit these in-house and on customer cars and the results are consistently excellent. Reliable cold starts, smooth driving and accurate closed-loop control. If your current unit is tired, this direct replacement is the smart fix.

Key advantages

• Original equipment quality for dependable performance and long service life.
• Accurate air fuel feedback for better drivability and efficiency.
• Helps reduce hydrocarbon levels and supports emissions compliance.
• Direct-fit connector and correct length for easy installation where 1975 applies.
• Suitable for front or rear positions as specified by your vehicle configuration.

Vehicle applications

Please verify your car below and contact us if you are unsure about front pre-cat or rear post-cat placement.

Fitment help and pre-shipping check

To make sure you receive the correct front Sensor 1 or rear Sensor 2 unit for your car, we will confirm compatibility before dispatch. Add your UK registration or the last 7 of your VIN at checkout, or email us for confirmation.

When to replace your lambda probe

• Illuminated engine warning light with oxygen-related faults.
• Increased fuel use, rich or lean running.
• Rough idle, hesitation or flat spots on acceleration.
• High emissions or MOT failure linked to the exhaust sensor.

Part references

• NGK / NTK: 1975
• NTK reference: OTA7N-5D2

Installation service

For a hassle-free fit, book professional installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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