Best Emission Control Units of 2026
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Emission Control Units are devices designed to reduce the amount of harmful pollutants released into the environment by internal combustion engines. These units are installed in various types of vehicles, including cars, trucks, and buses. They work by converting the harmful gases produced by the engine into less harmful substances before releasing them into the atmosphere. Emission Control Units are crucial in reducing air pollution and improving the quality of air we breathe. They are an essential component of modern vehicles, and their use is mandated by law in many countries.
At a Glance: Our Top Picks
Top 10 Emission Control Units
GM Genuine Parts 84631875 Reductant Control Module
The GM Reductant Control Module is built to meet high standards, ensuring it fits perfectly with your Chevrolet, Buick, GMC, or Cadillac vehicle. Since it may have been previously sold under ACDelco GM Original Equipment, you can trust its quality and compatibility. This part is carefully designed and tested by GM engineers specifically for your vehicle, which means it helps your emission system work efficiently. Plus, GM continuously improves their parts by using new materials and technologies, so you get a reliable and up-to-date component that helps your vehicle run cleaner and smoother.
GM Emission Reduction Fluid Controller
The GM Emission Controller is engineered to meet high standards of quality and performance. It is designed specifically for your Chevrolet, Buick, GMC, or Cadillac, ensuring a perfect fit and optimal function. With regular updates to its design, this part incorporates the latest materials and technologies, which enhances reliability and efficiency. Additionally, GM backs this product, giving you peace of mind knowing it has been rigorously tested by experts. This means you can trust it to effectively manage your vehicle’s emissions, contributing to a cleaner environment while maintaining your vehicle’s performance.
Graco-Sharpe 6950 880A Air Control Unit
The Graco-Sharpe 6950 880A Air Control Unit, made in China, is an emission control unit with a 1/2 inches NPT(f) inlet, 3/8in NPT(f) and 1/4in NPT(f) outlet, 200 psi maximum, and 75 CFM filter capacity.
Alliant Power Reman FICM for 6.0L Power Stroke
The Alliant Power Reman FICM is designed for 2004-2010 6.0L Power Stroke engines and offers several benefits to make your experience easier. You get a 24-month unlimited mileage warranty, so you can drive with confidence knowing your investment is protected. The product comes with expert technical support, providing you with reliable help whenever you need it. Alliant Power offers a wide range of over 200 parts for various engines, making it a trusted brand with plenty of options. Plus, this FICM is built to OEM standards, ensuring quality and compatibility for your vehicle. Enjoy peace of mind with this dependable, USA-made part.
Dorman 598-218 EGR Line for Audi/Volkswagen
The Dorman EGR Line is designed as a direct replacement to fit and work just like your vehicle’s original exhaust gas recirculation line. This means you can expect a smooth installation without worrying about compatibility issues. It helps restore the proper air-fuel mixture by addressing problems caused by buildup in the EGR valve, which can improve your engine’s performance. Built with durable materials and crafted under strict quality standards, this line ensures reliable and long-lasting use. Plus, it’s backed by a team with over 100 years of automotive experience, giving you peace of mind about the product’s quality and support.
GM Genuine Parts 85514348 Reductant Control Module
The GM Reductant Control Module is crafted to meet strict quality standards, ensuring reliable performance for your vehicle. Designed by GM engineers, it fits Chevrolet, Buick, GMC, or Cadillac models perfectly, giving you confidence in its compatibility and function. This part has evolved from previous ACDelco GM Original Equipment, showing a history of trusted design. GM also updates these parts regularly, using the latest materials and technology, so you benefit from continuous improvements and enhanced durability. Choosing this module means you get a product backed by General Motors, giving you peace of mind for your emission control system.
BMW Geniune PREHEATING Control Unit
The BMW PREHEATING Control Unit is a genuine OEM product that provides quality engine effectiveness and is designed specifically for BMW vehicles. With its direct fit design, it ensures easy installation and compatibility with your vehicle. This control unit is essential for preheating your engine, allowing for quicker and more efficient starts, especially in colder temperatures. By preheating the engine, it helps to reduce wear and tear on the engine components, prolonging their lifespan and ensuring optimal performance. The BMW PREHEATING Control Unit is a reliable and efficient solution for maintaining the performance of your BMW vehicle.
Generic TRP 12-00663-64 Cover Door Bezel for Carrier APX
The Generic Carrier APX Bezel is designed specifically for the Carrier APX controller, making it a perfect replacement part for your emission control unit. This bezel helps protect the controller's door, ensuring it stays secure and functional. As a product from the Generic brand, it offers a straightforward solution for maintaining your equipment without unnecessary extras. Its focus on compatibility means you can trust it to fit well and keep your system running smoothly. If you need a reliable cover bezel, this product provides the convenience of easy installation and peace of mind for your Carrier APX controller.
BYPARTSJC AC Control Panel for Caterpillar 320D Excavator
The BYPARTSJC AC Panel is designed specifically for Caterpillar 320D excavators, ensuring a perfect fit for your machinery. Made from durable PC material, this control panel resists wear and aging, offering you long-lasting performance. Its modular design and quick terminal wiring make installation straightforward and hassle-free, saving you time and effort. The panel features a clear display and simple buttons, making it easy to operate so you can quickly adjust your excavator’s air conditioning without confusion. This compact and user-friendly control panel is a reliable part to keep your equipment running smoothly.
MyParts Electronic Load Detector for Honda and Acura
The MyParts Load Detector is designed to be a cost-effective replacement for your vehicle's original equipment. You get a product made using the latest software and modern manufacturing tools, ensuring you receive a reliable and up-to-date part. This direct replacement fits perfectly, so you won’t have to worry about compatibility issues. Installing the MyParts Load Detector is just as straightforward as putting in the factory unit, saving you time and effort. This means you can easily maintain your Honda or Acura’s emission control system without hassle or extra costs.
Frequently Asked Questions (FAQs)
1. What does it mean when the emission control system light comes on?
When the emission control system light comes on in a car, it indicates a fault in the system. This could be due to the engine burning too much fuel, not burning enough fuel, or a broken sensor. It's important to address the issue to reduce carbon footprint and ensure proper functioning of the system.
2. How much does it cost to fix emission control system?
The cost of fixing an emission control system depends on the specific cause of the issue. Repairs typically start around $200, while replacing the exhaust system can start at approximately $175. It's recommended to consult a professional to determine the exact cost and necessary repairs.
3. Is it safe to drive with emission control light on?
Driving with the emission control light on is generally safe if the car is operating smoothly. However, it is important to identify the reason for the light to come on by having it checked by a professional. Ignoring the issue may lead to further complications and potential damage to the vehicle.
4. What causes emission system problems in a car?
Emission system problems in a car can be caused by various factors, including clogs, leaks, failing mass airflow or oxygen sensors, and issues with the exhaust system. These problems can affect engine performance, cause overheating, and impact the overall functioning of the vehicle.
5. What are the three general types of emission controls?
Emission controls can be categorized into three main types: engine design techniques, fuel and lubricant related technologies, and exhaust gas aftertreatment. Each of these categories includes various approaches to reduce emissions and improve environmental impact.
6. How long can you drive with a check emission light?
If the check engine light is on due to sensor issues, it is generally safe to drive for 50 to 100 miles. This may allow time for the sensors to reset and turn off the light. However, it is recommended to scan the computer for error codes if the light persists to identify and address the underlying problem.
During our emission control unit research, we found 24 emission control unit products and shortlisted 10 quality products. We collected and analyzed 4,017 customer reviews through our big data system to write the emission control units list. We found that most customers choose emission control units with an average price of $184.17.
The emission control units are available for purchase. We have researched hundreds of brands and picked the top brands of emission control units, including GM GENUINE PARTS, SHARPE, Alliant Power, Dorman, BMW. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.
Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.