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Wideband O2 Sensor

KMDZ_3022000965
In stock
Oxygen Sensors
$83.40 $69.50
Get ready to dial in unmatched fuel efficiency and performance with the wideband O2 sensor designed...
$69.50
customers are viewing this product
Wideband O2 Sensor
Description

Get ready to dial in unmatched fuel efficiency and performance with the wideband O2 sensor designed to keep your engine running at peak precision. Whether you're fine-tuning on the dyno or monitoring in real time on the street, this high-accuracy oxygen sensor delivers the fast, reliable readings you need for precise air-fuel ratio adjustments.

This wideband O2 sensor is a direct replacement built around the trusted Bosch LSU4.2 platform, engineered to integrate seamlessly with your FuelTech controller. Its rapid response time and extended calibration stability make it an essential component for tuners, racers, and serious performance enthusiasts who demand accuracy in every reading.

Unlike narrowband sensors that only offer limited feedback, a wideband O2 sensor gives you a full picture of your engine’s performance, helping you avoid costly lean conditions, maximize horsepower, and maintain engine longevity. With FuelTech-level compatibility and Bosch reliability, you're equipped for data you can trust.

Key Features:

  • Bosch LSU4.2 Wideband Sensor – Industry-proven technology known for accuracy, durability, and consistency in air-fuel monitoring.

  • FuelTech Controller Compatible – Seamlessly integrates with FuelTech systems for real-time tuning and diagnostics.

  • Fast Response Time – Instant AFR data gives tuners the ability to fine-tune quickly and precisely.

  • Extended Sensor Life – Designed for long-term use with stable calibration, reducing the need for frequent replacements.

  • Universal Fit – Ideal for a wide range of performance builds and aftermarket ECUs.

  • Cost-Effective Replacement – OEM-level performance at a more accessible price point.

  • Reliable Under Pressure – Performs in high-temp, high-load environments typical in racing and turbo applications.

Stop flying blind when it comes to tuning. This wideband O2 sensor ensures you’re always armed with accurate, real-time AFR data so you can tune with confidence, no more over-fueling, no more blown motors. Whether you're doing street pulls or dyno sessions, trust a sensor that’s engineered for performance.

Specifications:

Sensor Type Bosch LSU4.2 Wideband
Compatibility FuelTech Controller
Thread Size M18 x 1.5
Wire Length Approx. 36 inches
Operating Temperature -40°C to +930°C
Connector Type 6-pin male
Voltage Range 0 – 5V output
Mounting Universal weld-in bung or stock port

 

 

REVIEWS

JS

This wideband O2 sensor saved me a ton of guesswork during tuning. I installed it on my turbo Civic and paired it with my FuelTech controller, it was plug-and-play and insanely accurate. AFR readings are super steady now, and I haven’t had to recalibrate even after weeks of hard driving. If you're into DIY tuning, this sensor is a total win.

⭐️⭐️⭐️⭐️⭐️

James S.

Columbus, OH

MT

I was skeptical at first, but this Bosch-based wideband O2 sensor works flawlessly with my setup. I’m running it on a supercharged Mustang in the Arizona heat and it holds up great. No spikes, no erratic readings. Install was straightforward and the response time is lightning-fast. Wish I’d switched sooner!

⭐️⭐️⭐️⭐️⭐️

Melissa T.

Mesa, AZ

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