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AUDI A4 Sensors

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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.

4.76 out of 5 stars ( 174 )

$52.99

Bosch Premium Universal Type Oxygen Sensors

Worn-out sensors can cause engine performance problems and premature catalytic converter damage. Bosch premium universal type oxygen sensors with OE SmartLink produce precise output in proportion to the air/fuel ratio, due to a sophisticated sensing element. These premium sensors also use a patented connector system, which allows them to be added to an existing OE sensor harness. Keeping a properly functioning oxygen sensor in your vehicle saves money on fuel cost and is good for the environment, too!

3.08 out of 5 stars ( 13 )

$58.99

Denso Oxygen Sensors

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

4.62 out of 5 stars ( 102 )

$58.99

$221.99

Cardone New Mass Airflow Sensors

Cardone new mass airflow sensors meet or exceed OE specifications. These new MAFs are built with Cardone engineered technology. They precisely track OE output curves and maintain spec tolerances to ensure accurate scan tool readings for proper operation. And every component is rated to handle a broad range of temperatures and altitudes. Select new parts that offer quality and value--choose Cardone new mass airflow sensors.

4.2 out of 5 stars ( 5 )

$103.99

$156.99

URO Parts Engine Oil Level Sensors

With a reputation as a supplier of OE-quality components, URO Parts oil level sensors perform exactly as OEM sensors for a fraction of the price. All URO manufacturing facilities are ISO 9000 certified; plus, every URO part also undergoes testing to make certain that each part meets or exceeds OE standards for fit, function, durability, and design.

5.0 out of 5 stars ( 1 )

$29.99

$35.99

Standard Motor ABS Wheel Speed Sensor Wiring Harnesses

Standard Motor Products ABS wheel speed sensor wiring harnesses are critical for getting information from your ABS sensor to your vehicle's computer and keeping your antilock braking system properly functioning. These quality replacement harnesses meet or exceed OE specifications, ensuring peak performance and service life.

5.0 out of 5 stars ( 3 )

$130.99

$192.99

Hitachi Mass Air Flow Sensors

Hitachi offers mass air flow sensors for countless cars, trucks, and vans. These stock replacements are built to OEM specifications for performance and longevity. MAF sensors play a fundamental role in your vehicle, measuring the amount of air entering the internal combustion engine. Hitachi's quality control and attention to detail make their parts the go-to choice for many car manufacturers. Order the mass air flow sensor recommended for your application.

4.75 out of 5 stars ( 4 )

$90.99

$163.99

URO Parts Camshaft Position Sensors

URO Parts camshaft position sensors are designed to meet or exceed OEM specifications for dependable, accurate, and maintenance-free operation. They're available for a variety of makes, models, and engines. Don't take chances with old, questionable, or faulty sensors that provide inaccurate information to the vehicle's computer. Trust quality OE-replacement URO camshaft position sensors for the correct data and a return to factory performance. Order the model recommended for your application.

Not Yet Reviewed

$13.99

$18.99

URO Parts Windshield Washer Fluid Level Sensors and Seals

URO Parts windshield washer fluid level sensors and seals are the solution for missing, leaking or damaged originals. These direct-fit factory reproductions are carefully engineered and precision-made from quality materials. The replacements are available in different styles for a variety of European vehicles, such as BMW, Mini Cooper, Volkswagen, Mercedes-Benz, and Jaguar.

Not Yet Reviewed

$4.99

Rein Automotive OE Quality Crankshaft Position Sensors

Rein Automotive OE crankshaft position sensors are manufactured to factory specifications ensuring proper fit, form, and function. They are used to measure the position or rotational speed of the crankshaft. Your vehicle uses the information sent from the sensor to the ECU to determine the optimal fuel injection and regulate the ignition. Rein Automotive quality crankshaft sensors aim to provide the professional repair technician and vehicle owner the peace of mind and trust that is expected from an OE-quality component.

Not Yet Reviewed

$21.99

Holstein Parts Coolant Temperature Sensors

The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor used to monitor the engine coolant's temperature. Because temperature play a vital role in engine performance, a problem with your coolant sensor could quickly translate into engine issues. Holstein Parts coolant temperature sensors contain only the highest quality materials and engineering for parts that are truly built to match or exceed the OE part. And they offer superior coverage for domestic and import applications.

Not Yet Reviewed

$9.99

$14.99

Rein Automotive Air Temperature Sensors

Rein Automotive offers air temperature sensors for a large range of applications spanning several decades. These direct-fit replacements help to ensure maximum performance and fuel economy. Electrical parts from the factory are all subject to wear over time. Why take chances with faulty sensors—when an economical upgrade is readily available to safeguard your engine. Order the sensor recommended for your year, make, and model.

Not Yet Reviewed

$11.99

Beck/Arnley Engine Coolant Temperature Sensors

Having difficulty starting in cold weather? We're referring to your car, not you. Or, maybe you're seeing readings of overheating when all is normal. If your engine is giving questionable temperature readings or having trouble starting or running, you may need a new Beck/Arnley engine coolant temperature sensor. These quality-made sensors will signal your car's computer with the correct operating temperature to get the right amount of air and fuel flowing. Replace corroded sensors with Beck/Arnley engine coolant temperature sensors.

3.0 out of 5 stars ( 2 )

$13.99

$16.99

Holstein Parts Crankshaft Sensors

The crankshaft position sensor is an electronic device that monitors the position and/or rotational speed of the crankshaft, then communicates with the vehicle's ECU to control ignition timing and fuel injection parameters. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Holstein Parts crankshaft position Sensor line has superior coverage for domestic and import applications.

5.0 out of 5 stars ( 1 )

$13.99

$73.99

Beck/Arnley Camshaft Position Sensors

How fast is your cam spinning and why is it important to know? Beck/Arnley camshaft position sensors enable you to accurately measure camshaft speed. This speed determines when your air/fuel mixture should be ignited in your engine cylinders and sends data from your camshaft to your engine management system to keep your vehicle running smoothly and more economically. When you need to replace your camshaft position sensors choose parts made right from Beck/Arnley.

5.0 out of 5 stars ( 1 )

$34.99

$48.99

Beck/Arnley Disc Brake Pad Electronic Wear Sensors

Knowing when your brakes need service is imperative to driving safety. Beck/Arnley disc brake pad electronic wear sensors keep you in the know. When the pads are worn down to a specified thickness, the sensors send an alert that it's time for maintenance. You can count on Beck/Arnley for the correct parts to keep you safe on the road.

5.0 out of 5 stars ( 1 )

$30.99

Holstein Parts MAP Sensors

The manifold absolute pressure sensor (MAP sensor) is one of the sensors used in a vehicle's electronic control system (ECU). The MAP sensors provide instantaneous manifold pressure information to the engine's computer (ECU). The data is used to calculate air density and determine the engine's air mass flow rate, which determines the required fuel metering for optimum combustion and influences the advance or retard of the ignition timing. A faulty Map sensor can cause a vehicle to run rich or lean, which will affect the vehicle's ignition timing and cause the engine not to run smoothly. Holstein Parts uses only the highest quality materials and engineering for parts that are truly built to match or exceed the OE part. Holstein Parts MAP sensors offer superior coverage for domestic and import applications.

Not Yet Reviewed

$29.79

$89.99

PowerStop Electronic Brake Wear Sensors

PowerStop has a reputation for precision and adherence to the strictest OEM standards. Extending those standards, PowerStop's electronic brake wear sensors are designed to meet the same form, fit, and function as the original OEM part. Brake wear sensors wear down with the pads and illuminate the brake pad wear indicator light/warning. When that happens, it's time to replace the brake pads as well as the sensors. PowerStop electronic brake wear sensors are designed to withstand high-temperatures, assure excellent electrode conductivity, and they will continue to work after thousands of miles, providing the safety and performance drivers count on.

4.2 out of 5 stars ( 5 )

$8.53

$41.63

Summit Bucks

Delphi Engine Coolant Temperature Sensors

Delphi engine coolant temperature sensors are top-quality, direct fit OE replacements, which are designed to eliminate connection and failure points. With a one-piece, lead-frame design from the sensing tip to the connector terminals, these units equip your vehicle with a proven design that's built to last. They put the engine under fuel control operation quicker and reduce harmful cold-start emissions by 40 to 50 percent. Delphi engine coolant temperature sensors are built to last, even under the toughest conditions, to endure the long haul. Improve reliability, durability and fuel economy with Delphi.

4.71 out of 5 stars ( 17 )

$12.99

$28.99

Bosch Mass Airflow Sensors

Is your check engine light on? Is your vehicle hesitating, or even stalling? You may need of a new mass airflow sensor. Bosch mass airflow sensors were developed to replace your OEM components. They're manufactured to strict standards and made of high-quality materials.

5.0 out of 5 stars ( 2 )

$151.99

Bosch Knock Sensors

Bosch knock sensors are designed to help your computer monitor your engine's performance. They are manufactured from quality materials and fit in the stock location. They are available for a variety of engines and vehicles.

2.5 out of 5 stars ( 2 )

$24.99

Rein Automotive Coolant Temperature Sensors

Don't take chances with old, questionable, or faulty coolant temperature sending units that can provide misleading information to you and your vehicle's computer. Rein Automotive coolant temperature sensors are designed to meet OEM specifications for dependable, accurate, maintenance-free operation. Order the replacement model recommended for your vehicle application.

Not Yet Reviewed

$10.99

$14.99

Rein Automotive Oil Pressure Safety Switches

Rein Automotive oil pressure safety switches will help you to protect your vehicle from being driven at low oil pressure, to avoid costly engine repairs and help maintain performance. Replacing these when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive oil pressure safety switches are application specific and match the design and function of the OE parts.

Not Yet Reviewed

$4.99

$13.99

Holstein Parts Variable Valve Timing Solenoids

The variable valve timing solenoid alters the supply of oil pressure to the camshaft depending on the engine's speed and load and can either advance or retard cam position, which provides several benefits, including improved engine operation increased engine power, reduced fuel consumption, and decreased emissions. Holstein Parts focuses on using only the highest quality materials, manufactured to exacting standards for an aftermarket product that is truly built to match or exceed the OE part. Holstein Parts variable valve timing solenoids offer superior coverage for domestic and import applications. Order the model designed to fit your application needs.

5.0 out of 5 stars ( 1 )

$37.99

$132.99

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