Sensors: Oxygen, Map, Knock Sensor & More

MSD Power Grid Wide Band Oxygen Sensor Modules

MSD Power Grid wide band oxygen sensor modules provide valuable air/fuel ratio data to your MSD Power Grid, data logger, or air/fuel ratio gauge. These modules feature: * Plug-and-play with MSD Power Grid * Easy set-up; no free-air calibration required * Completely sealed unit for durability in race environments * Bosch 4.9 oxygen sensor * 0 to 5 V output to run an air/fuel gauge or data logger * Dual-color LED provides on board diagnostics * Multiple modules can be used on a single Power Grid * Data logs air/fuel ratio and heater voltage * Fuel calibration options for gasoline, methanol, ethanol, E85, propane, and diesel * Custom fuel calibration option can be programmed by user

4.0 out of 5 stars ( 2 )

$342.95

Ballenger AFR500v3 Wideband Control Kits

Are you in need of an air-fuel-ratio monitor kit for your HP Tuned vehicle? Measure your AFRs with extreme precision using Ballenger Motorsports' AFR500v3 wideband control kits preconfigured specifically for vehicles using HP Tuners' software. As one of the most critical tools a tuner requires for properly calibrating a vehicle, the AFR500 air fuel ratio monitor provides professional grade measurement of air-fuel-ratio without breaking the bank. Ballenger AFR500v3 kits offer a linear analog output to be used as an input to engine control systems, gauges, or data acquisition systems. They are capable of reading air-fuel ratio values from 9.0:1 to 16.0:1 (standard range) with a resolution of 0.1 to provide excellent resolution in the tuning range of most performance vehicles. Key features and benefits: * Large, bright digital display controller (3.4 in. x 2.7 in. x 1.3 in.) * 13 ft. wiring harness with sealed connections * NTK production grade sensor * Standard measurement range * Display gasoline (standard) * Weld-in steel exhaust boss and plug * Mounting Velcro® * Comprehensive installation, troubleshooting, and tuning manual * 0 to 5 V analog output signal * 11 to 28 V input power (24 V system capable) * Compatibility with most aftermarket ECUs * Digitally derived output with a higher resolution digital/analog converter * 4 times the measurement resolution (4096 increments compared to the previous 1024) * ASIC chips (a common point of failure from electrostatic damage) have been replaced with a custom board providing better protection and upgrade capabilities * Ability to display from 0.0 to 6.0 in lambda setting for better flexibility with alternate fuels, such as diesel * Ability to upgrade firmware for future sensor types * All harnesses, control units, accessories, etc. are backward and forward-compatible * Options are selectable at any time via internal jumpers * NTK Calibration grade sensor highly recommended for low AFR methanol applications

Not Yet Reviewed

$549.99

Ballenger AFR500CANv3 Wideband Monitor Kits

Looking for a solution to measure your vehicle's air-fuel ratio with CAN configuration? Designed for professional tuners and DIY enthusiasts alike, Ballenger AFR500CANv3 wideband monitor kits provide plug-and-play digital CAN Bus messaging and the ability to configure for CAN-enabled systems with specific presets for HP Tuners, making them a seamless and convenient option for measuring air-fuel-ratio in your HP Tuned build. They are capable of reading air-fuel ratio values from 9.0:1 to 16.0:1 (standard range) with a resolution of 0.1 to provide excellent resolution in the tuning range of most performance vehicles. They come equipped with PC software for programming your CAN or OBDII message structure--no adapters or extra hardware are required for PC programming. Key features and benefits: * CAN flying lead and USB programming harness * PC software for full digital programmability * Large, bright digital display controller (3.4 in. x 2.7 in. x 1.3 in.) * Display lambda * 13 ft. wiring harness with sealed connections * NTK production grade sensor * Standard measurement range * Weld-in steel exhaust boss and plug * Mounting Velcro® * Comprehensive installation, troubleshooting, and tuning manual * CAN specific manual addendum * HP Tuners/OBDII CAN connection * 0 to 5 V analog output signal * 11 to 28 V input power (24 V system capable) * Compatibility with most aftermarket ECUs * Programmable CAN termination resistor * Sensor averaging filter setting * Oxygen percent output * Fault condition diagnostics * IP, pump cell current output * Sensor temperature output * Heater duty cycle output * Battery voltage output

Not Yet Reviewed

$639.98

FAST Wireless Air/Fuel Meter Kits

FAST has revolutionized the tuning industry with the most advanced, app-based, wireless air/fuel meters, in both dual and single sensor options. These kits use an underhood-mounted Bluetooth module, connected to Bosch LSU 4.9 oxygen sensors in one or both of your engine's exhaust outlets—giving you the full story on the state of your engine's tune. With the dual sensor unit, you can read both wideband oxygen sensors individually, or average them together for super accurate readings of the engine's true air/fuel ratio. Easy to use with any iOS or Android device, the FAST wireless air/fuel meter app includes a simple, built-in data logger that records up to two minutes of air/fuel and RPM data. Fuel calibrations are preloaded for measuring gasoline, all popular ethanol blends, methanol, diesel, and more. Advanced features include 0-5 V output for external data loggers and digital gauges. Additionally, a selectable module output is provided that can be used as: an RPM-activated window switch; a lean air/fuel ratio safety cut-off; or an innovative anti-theft feature. This would allow you to manually activate/deactivate a vehicle immobilizing relay—a simple way to protect your vehicle from theft! Additional details: * Monitor air/fuel ratio directly from any iOS or Android smartphone * Supports all popular fuel types * Clean install, no extensive wiring or permanent gauges needed * Includes oxygen sensor bungs and 39.37 in. of sensor wiring With features unlike anything else on the market, it's clear that FAST wireless air/fuel meter kits are the best choice for the serious engine tuner.

4.75 out of 5 stars ( 4 )

$734.95

On Sale

AEM Electronics Inline Wideband UEGO Controllers

AEM Electronics inline wideband UEGO controllers give all the benefits of the AEM Electronics wideband Air/Fuel gauges to those who do not require or want an additional gauge in the car. Perfect for datalogging, engine management systems or racing applications where a gauge is not desired. With simple wiring and easy installation, the weatherproof controller can be mounted anywhere in or outside the vehicle. The system features a Bosch sensor with an accuracy of .1 AFR, making it among the fastest and most accurate widebands available. Other features include: * Ideal AFR monitoring tool for EFI and carburated applications, and engine dynamometers * Does not oscillate AFR reading like narrow band sensors * No laptop required for monitoring! * 0-5V analog output included for use with data loggers and virtually any engine management system * Detects AFR sensor problems and outputs error values which can be used to deactivate feedback * Reads Gasoline AFR values from 8.5 to 18:1 AFR * Reads E85 AFR from values 5.7 to 12:1 AFR * Reads Ethanol AFR values from 5.2 to 11:1 AFR * Reads Methanol AFR values from 3.7 to 7.8:1 * Reads Lambda values from 0.58 to 1.22 AFR

4.83 out of 5 stars ( 6 )

$211.95

$190.75

On Sale

AEM Electronics Replacement Wideband UEGO Controller Air/Fuel Ratio Gauge Components

AEM Electronics Wideband UEGO Controller Air/Fuel ratio gauge components are designed to be used with AEM wideband UEGO controller air/fuel ratio gauges. Whether you need to replace your sensor or cable, these parts will help you to get your gauge back in working order.

4.0 out of 5 stars ( 23 )

$149.95

$134.95

Haltech Single Channel CAN O2 Wideband Controller Kits

Haltech Single Channel CAN O2 Wideband Controller Kits are smaller, lighter and waterproof! The new controllers can now be safely fitted inside your engine bay. The kits are available in different models: -- Suits: BOSCH LSU 4.9 SENSOR * Includes: Single Channel, CAN Wideband Controller, 4.9LSU Sensor, CAN Cable (4 ft./1200mm), Power Supply Cable, Weld-on Bung, Quick Start Guide. * Notes: The ideal CAN expansion accessory for all Elite Series ECUs. -- Suits: NTK SENSOR * Includes: Single Channel, CAN Wideband Controller, NTK Sensor, CAN Cable (4 ft./1200mm), Power Supply Cable, Weld-on Bung, Quick Start Guide. * Notes: Best product for methanol powered vehicles

5.0 out of 5 stars ( 2 )

$355.00

On Sale

AEM Electronics Wideband UEGO Sensors

These AEM Electronics wideband UEGO sensors are used in AEM single channel UEGO systems. They may also work with other wideband UEGO controllers. Features include: * Much more accurate AFR readings than OEM sensors * Response time of less than 100 milliseconds * Measure from 11:1 AFR to atmospheric air * Latest Nernst cell/oxygen pump hybrid technology * Planar-configured zirconium dioxide sensor * Integrated heater element warms up in less than 20 seconds * PTFE insulators withstand temperatures of up to 1,400 degrees Fahrenheit (800 degrees Celsius) * Low current draw

4.64 out of 5 stars ( 22 )

$113.95

$102.55

Haltech Dual Channel CAN O2 Wideband Controller Kits

Haltech Dual Channel CAN O2 Wideband Controller Kits are smaller, lighter and waterproof! The new controllers can now be safely fitted inside your engine bay. * Suits: Bosch LSU 4.9 Sensor * Includes: Dual Channel, CAN Wideband Controller, 2 x 4.9LSU Sensor, CAN Cable (4 ft./1200mm), Power Supply Cable, 2 Weld-on Bung, Quick Start Guide. * Notes: The ideal CAN expansion accessory for all Elite Series ECUs.

Not Yet Reviewed

$550.00

Daytona Twin Tec Wideband Exhaust Gas Oxygen Sensors

Daytona Twin Tec wideband exhaust gas oxygen sensors are replacements used in a variety of tuners, data-logging controllers, and gauges—including WEGO 3 and Twin Scan 3. Ensure that your performance calibrations are correct with an O2 sensor from Daytona.

5.0 out of 5 stars ( 1 )

$150.95

AEM Electronics Universal EMS Wideband UEGO Sensor Kits

AEM Electronics Universal EMS Wideband UEGO sensor kits are designed for use with your AEM UEGO system. They include an oxygen sensor, connector plug, silicone wire seal, and wire terminals. Complete your UEGO installation with AEM Universal EMS Wideband UEGO sensor kits.

Not Yet Reviewed

$215.95

On Sale

Holley EFI O2 Sensors

Holley EFI O2 sensors precisely manage air fuel ratios to keep your engine performing at its peak. Available in Bosch LSU4 and NTK wideband configurations, Holley EFI has the correct sensor for your high performance EFI application.

3.97 out of 5 stars ( 36 )

$368.95

FAST 5-Wire Wideband Oxygen Sensors

FAST 5-wire wideband oxygen sensors are designed for wideband, closed-loop applications. They can read air/fuel ratios from 10:1 to 16:1.

4.8 out of 5 stars ( 10 )

$123.95

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$320.95

On Sale

MSD Power Grid Wide Band Oxygen Sensors

MSD Power Grid wide band oxygen sensors are replacements for the MSD Power Grid wideband O2 sensor module. The LSU 4.9 is the robust design combined with a high production quality standard. They will also work with Holley Sniper EFI and Terminator X Systems. MSD Power Grid wide band oxygen sensors feature anti-seize pre-applied to sensor threads for an easy install and removal, and they are compatible with gasoline, methanol, ethanol, E85, propane, and diesel.

5.0 out of 5 stars ( 1 )

$236.95

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$306.95

Holley Commander 950 Wideband Replacement O2 Sensors

Holley Commander 950 wideband replacement O2 sensors are the ultimate additions to any new or existing Commander 950 EFI system. They plug directly into any Commander 950 harnesses and accurately measure any air/fuel ratios between 10:1 and 20:1. This allows the engine tuner to read the air/fuel ratios in real time for extremely precise tuning. These sensors are designed for use with Holley controllers only. They are not intended to be replacement sensors for factory fuel injected vehicles.

Not Yet Reviewed

$377.95

AutoMeter Wideband Oxygen Sensors

Designed specifically for use with AutoMeter Wideband AFR gauges, these wideband exhaust oxygen sensors are intended for replacement of an existing sensor(s) being utilized by an AutoMeter wideband air/fuel ratio gauge. The sensors are fitted with a laser-etched calibration chip which prevents the need for free-air calibration when used with the AutoMeter gauges for which they are specifically designed. Each sensor is factory-calibrated by Bosch for accuracy within 0.1 AFR.

4.59 out of 5 stars ( 17 )

$197.99

Summit Racing™ Oxygen Sensors

Summit oxygen sensors will keep your engine running reliably by properly monitoring the amount of oxygen in your exhaust stream. Our sensors are manufactured to the highest quality standards.

5.0 out of 5 stars ( 1 )

$80.99

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$94.99

FuelTech WB-O2 Sensors

Designed for use with their WB-O2 Nano, Alcohol O2, WB-O2 Datalogger, and WB-O2 Slim products, FuelTech WB-O2 sensors measure the amount of oxygen in your vehicle's exhaust gases. Your engine's computer uses this data to help figure out the current air/fuel ratio. FuelTech also offers an alcohol model designed for high horsepower alcohol combinations, providing high accuracy and low AFR readings. Maintain fuel efficiency and emissions standards with the FuelTech WB-O2 sensor best suited for your application.

Not Yet Reviewed

$699.00

Denso Air/Fuel Ratio Sensors

Denso air/fuel ratio sensors (A/F sensors) were developed to measure air-to-fuel ratios under a wider range of driving conditions than oxygen sensors. A/F sensors, also known as wide-band oxygen sensors, send information to the engine management computer to make adjustments based on driving conditions. Their wider range and variable adjustments allow engines to burn fuel more efficiently and produce fewer emissions. As A/F sensor technology has evolved, Denso has been there every step of the way. From the first thimble-type sensors to today's heated, quick-response sensors required to meet ever more stringent emissions regulations, Denso has supplied OEMs with quality components and continues to innovate. Denso helped to develop this important technology and you can rely on Denso First Time Fit A/F sensors. Features and benefits of Denso air/fuel ratio sensors include: * Tarnish-proof platinum electrode provides longer life and maintains accuracy * Quick-response planar zirconia element quickly detects oxygen concentration * Measures air/fuel ratios from approximately 12:1 to 19:1 * Increased performance by mapping air/fuel ratios throughout the RPM range * Lower emissions by optimizing the air/fuel mixture * Reduces fuel consumption and maximizes catalytic converter life * First Time Fit design delivers the right part the first time

4.78 out of 5 stars ( 23 )

$49.99

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$632.99

URO Parts Oxygen Sensors

URO Parts air/fuel ratio sensors were developed to measure air-to-fuel ratios under a wider range of driving conditions than oxygen sensors. These A/F sensors, also known as wide-band oxygen sensors, send information to the engine management computer to make adjustments based on driving conditions. Their wider range and variable adjustments allow engines to burn fuel more efficiently and produce fewer emissions. The replacement sensors are available for a wide range of cars and trucks, including BMW and Mini Cooper applications from the early 2000s and up. Order the model recommended for your vehicle.

Not Yet Reviewed

$77.99

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$78.99

Bosch Premium Original Equipment-Type Oxygen Sensors

Save the environment and gasoline dollars. Tune-up with Bosch premium original equipment-type oxygen sensors for lower emissions and greater fuel economy. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel economy and reducing harmful exhaust emissions. That's why checking for and replacing a worn-out oxygen sensor with one of these Bosch sensors is an important part of every routine tune-up. These O2 sensors feature an OEM connector for ease of installation. Bosch invented the automotive oxygen sensor and is the top choice of carmakers around the world. Order the model designed for fitment with your vehicle.

4.74 out of 5 stars ( 175 )

$136.99