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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.
( 35 )
$359.95
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
( 2 )
$375.00
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
( 2 )
$334.95
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.
( 10 )
$320.95
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.
( 1 )
$299.95
Oxygen sensors, also known as Lambda sensors or O2 sensors, are among the most sensitive and critical components on your car's engine. They monitor the air/fuel mixture under idle, moderate acceleration, and cruise conditions. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio than the newer wide range air/fuel sensors (A/F sensors). Today's engines may use as many as four oxygen sensors to monitor exhaust gas oxygen content and catalytic converter efficiency. In order to perform these functions properly, Denso oxygen sensors adhere to strict OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt drivability and illuminate the check engine light, resulting in costly and time-consuming repairs. Denso First Time Fit oxygen sensors are designed to meet those tolerances and more. Key features and benefits of Denso Oxygen Sensors include: * Robotic laser welds * Porous PTFE filters block efficiency-robbing contaminants * Double-protection covers maintain proper temperature for quicker response times and protect ceramic elements from silicone and lead fouling * Rugged, watertight stainless steel housings resist corrosion and contamination * Aluminum oxide trap layers keep silicone and lead out, preventing damage to the platinum electrode * Refined zirconia elements improves sensor response * Superior design maximizes engine performance while reducing fuel consumption and harmful emissions * First Time Fit design delivers the right part the first time
( 102 )
$254.99
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$514.99
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.
( 174 )
$348.99
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Delphi oxygen sensors will help you get your car up and running in no time. The engineers at Delphi designed these oxygen sensors to use OEM connectors and threads for easy installation in your car. Their unique sensor coating resists contamination to create oxygen sensors that are long-lasting and reliable. Whether you are replacing your exhaust and just want a new sensor or are replacing a worn-out unit, these Delphi oxygen sensors are for you.
( 44 )
$255.99
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$257.99
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
( 22 )
$250.99
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$520.99
For years, if you wanted to use your dyno's powerful data acquisition system to display and record air/fuel ratios, you had to piece together an external standalone air/fuel meter, along with a custom-made wiring harness to get a proper signal to record. Seeing the need for an easier way, FAST developed a plug-and-play kit that makes it easy for owners of any SuperFlow 902, AutoDyn, or CycleDyn dyno to measure their test engine's air/fuel ratio. FAST wideband O2 sensor kits for SuperFlow dynos include a wideband oxygen sensor and an O2 sensor processing unit that plugs directly into the AMP-style connector harness on the dyno. Once you configure the dyno's analog channel for the fuel you're using, the dyno will begin to display and record the air/fuel ratio. Making it easy to use was a priority for FAST, so these sensor kits utilize fully automatic sensor calibration. No need to manually "free-air" calibrate the sensor; just turn the power on, and in just seconds these FAST units output an accurate and consistent air/fuel signal. Additionally, each sensor kit is a standalone unit—so using multiple kits for measuring all your engine's cylinders is a breeze. With industry leading plug-and-play installation, accuracy, and ease of use, it's clear that FAST wideband O2 sensor kits for SuperFlow dynos are the best choice for serious engine tuners.
Not Yet Reviewed
$335.95
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
$368.95
Standard Motor Products features the broadest sensor coverage in the market to meet service professionals' needs with the highest quality product every time for reliable performance. Standard Motor flex fuel sensors are designed to exceed OEM specifications for proper fit and precise operation to maintain sensor integrity and ease of installation. Flex fuel sensor features and benefits: * One-piece laser welded body for maximum protection optimum performance * Dual internal talc seal makes oxygen sensors last longer * Breathable PTFE membrane allows increased airflow for a faster switch rate to improve fuel economy and save the motorist money at the pump * Stainless steel shield protects the element from thermal shock and regulates proper airflow to ensure faster sensor response and better performance
Not Yet Reviewed
$401.99
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