NGK 94863 Oxygen Sensor (Lambda/O2) OZA811-EE10 - Heated 4-Wire 400mm - Fits BMW E46 E39 E38 E60 E85 Z4 X5 E53 X3 E83, Range Rover L322 4.4

NGK 94863 / OZA811-EE10 Direct-Fit Lambda Probe for BMW and Range Rover

Bring back crisp throttle response, smooth idle and cleaner emissions with NGK’s 4‑wire heated lambda probe. This direct-fit unit provides precise air‑fuel feedback so the ECU can correct fuel trims quickly, helping restore lost performance and economy on ageing petrol engines. If your dashboard light is on, fuel consumption is up or the car feels flat, a tired exhaust gas sensor is a common culprit. This replacement cures those symptoms with OE-grade accuracy and durability.

We run these sensors on our own cars and customer builds at MJ Modifications and the results are consistently excellent. Fast warm‑up, stable closed‑loop control and rock‑solid reliability. Owners love the plug‑and‑play fit and long service life.

Why this NGK unit is a smart upgrade

• Restores proper fuel mixture control for stronger, cleaner running
• Helps reduce fuel use and tailpipe emissions
• Integrated heater for rapid light‑off and steady feedback at idle and cruise
• OE-style connector and 400 mm lead for a neat, direct connection to the factory loom
• Ideal fix for mixture control faults, rough idle and emission test failures

Key details

• Type: Heated lambda probe
• Circuits: 4‑wire
• Lead length: 400 mm
• Fitment position: Upstream or downstream depends on application. Always confirm with the vehicle list or VIN check below.
• Brand: NGK
• Part number: 94863
• NGK code: OZA811-EE10

Compatibility

Suits a wide range of BMW petrol models and Range Rover L322 4.4 applications below. If you are looking for a direct-fit pre‑cat or post‑cat replacement on 6‑cylinder and select V8 platforms, this is the correct plug configuration and harness length for many models. Always check your exact year, engine and sensor position.

Fitment confirmation before dispatch

We double‑check compatibility prior to shipping. Add your UK registration or the last 7 digits of your VIN at checkout and we will verify NGK 94863 (OZA811-EE10) suits your vehicle and sensor position.

Professional installation

Want it fitted right first time? Book expert installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Part references

• NGK 94863
• NGK OZA811-EE10

Search terms to help you find the right part

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