Best Emission Mixture Control Solenoids of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Dec 29, 2025

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Emission Mixture Control Solenoids are an essential component of a vehicle's emission control system. These solenoids work by regulating the amount of fuel and air mixture that enters the engine, which helps to reduce harmful emissions. They are designed to work with the engine's computer system to ensure that the correct amount of fuel and air is delivered to the engine at all times. These solenoids are made from high-quality materials and are built to withstand the rigors of daily use. They are a cost-effective solution for improving the performance and efficiency of any vehicle's emission control system.

At a Glance: Our Top Picks

Standard Motor Products MX45 Mixture Control Solenoid Cover #TOP 1
Standard Motor Products MX45 Mixture Control Solenoid
ftb score rating icon 9.9
Sawyer Auto Fuel Mixture Control Solenoid for 1981-1984 Chrysler 2.2L Cover #TOP 2
Sawyer Auto Fuel Mixture Control Solenoid for 1981-1984 Chrysler 2.2L
ftb score rating icon 9.8
Sawyer Auto Fuel Mixture Control Solenoid 2.0L 4 Cylinder Cover #TOP 3
Sawyer Auto Fuel Mixture Control Solenoid 2.0L 4 Cylinder
ftb score rating icon 9.6

Top 10 Emission Mixture Control Solenoids

#TOP 1

Standard Motor Products MX45 Mixture Control Solenoid

MX45
Assorted
Standard Motor Products MX45 Mixture Control Solenoid Cover
Standard Motor Products Mixture Control Solenoid - MX45

The SMP MX45 Solenoid is designed to give you reliable and steady performance, ensuring your vehicle runs smoothly without unexpected issues. It’s built to fit your specific vehicle and lifestyle needs, so you can trust it will work well for you. Made from top-quality materials, this solenoid offers long-lasting durability, saving you from frequent replacements. Plus, it meets or even exceeds strict quality standards, giving you confidence in its efficiency and safety. Overall, this solenoid is a dependable choice to keep your vehicle’s emission system functioning properly.

What We Like
Reliable performance
Vehicle-specific fit
High-quality materials
Strict quality standards
#TOP 2

Sawyer Auto Fuel Mixture Control Solenoid for 1981-1984 Chrysler 2.2L

PAT-155358
Sawyer Auto Fuel Mixture Control Solenoid for 1981-1984 Chrysler 2.2L Cover
Replacement Mixture Control Solenoid for 1981-1984 Chrysler, Dodge, Plymouth 400, Aries, Horizon, LeBaron, Omni, Rampage, Reliant, Town & Country (2.2L 4 Cylinder)

The Sawyer Auto Mixture Solenoid is designed specifically for 2.2L 4-cylinder engines found in 1981-1984 Chrysler, Dodge, and Plymouth vehicles. This replacement part fits perfectly, making installation easy and hassle-free, just like the original factory component. Manufactured with modern tools and high-quality materials, it offers improved durability and reliability compared to older parts. Additionally, each solenoid undergoes strict testing to ensure you receive a product that performs consistently, helping your vehicle maintain optimal fuel mixture control for better engine performance and efficiency.

What We Like
Precise fit for 2.2L engines
High-quality durable materials
Easy, direct installation
Thorough quality inspection
#TOP 3

Sawyer Auto Fuel Mixture Control Solenoid 2.0L 4 Cylinder

PAT-155356
Sawyer Auto Fuel Mixture Control Solenoid 2.0L 4 Cylinder Cover
Replacement Mixture Control Solenoid for 1984-1988 Dodge, Mitsubishi, Plymouth Colt, Conquest, Cordia, Mighty Max, Mini Ram, Montero, Power Ram 50, Ram 50, Tredia (2.0L 4 Cylinder)

The Sawyer Auto Mixture Solenoid is designed for 2.0L 4-cylinder engines, offering a perfect fit for models like Dodge, Mitsubishi, and Plymouth from 1984-1988. This part meets original equipment standards, ensuring you get reliable performance comparable to factory units. Made with durable materials, it provides better quality and longevity than some OEM parts, saving you time and money on replacements. Installation is straightforward since it fits directly in place of your old solenoid, making the upgrade hassle-free. You can trust its quality because each unit is thoroughly tested before it reaches you, giving you peace of mind on the road.

What We Like
Exact 2.0L 4-cylinder fit
OEM-quality standards
Durable materials
Easy direct replacement
#TOP 4

Standard Motor Products MX17 Solenoid

Standard Motor Products MX17 Solenoid Cover
Standard Motor Products MX17 Mixture Control Solenoid

The Standard MX17 Solenoid is engineered for reliable and consistent operation, making it a great choice for your vehicle. Its high-quality materials ensure long-lasting durability, allowing you to enjoy peace of mind while driving. This solenoid is manufactured to meet rigorous quality standards, which means you can trust its performance. If you ever have questions or need assistance with fitment, support is readily available to help you find the right solution for your needs.

What We Like
Reliable performance
Durable materials
Meets quality standards
Fitment assistance available
#TOP 5

Sawyer Auto Mechanics Choice Mixture Control Solenoid 2.0L 4 Cylinder

PAT-155355
Sawyer Auto Mechanics Choice Mixture Control Solenoid 2.0L 4 Cylinder Cover
Mechanics Choice Mixture Control Solenoid for 1984-1988 Dodge, Mitsubishi, Plymouth Colt, Conquest, Cordia, Mighty Max, Mini Ram, Montero, Power Ram 50, Ram 50, Tredia (2.0L 4 Cylinder)

The Sawyer Auto Mixture Solenoid is designed to fit 2.0L 4-cylinder engines, making it a perfect replacement for your Dodge, Mitsubishi, or Plymouth vehicles. It is built to meet original equipment standards, giving you confidence in its quality and dependability. This solenoid uses durable materials that often exceed those used in the original parts, ensuring a longer life and better performance. Plus, installation is straightforward because this product fits just like the factory unit, saving you time and effort. With its reliable design, you can expect smooth operation and improved fuel mixture control for your engine.

What We Like
Exact fit replacement
High-quality materials
OE standard design
Easy installation
#TOP 6

PartCatalog Mixture Control Solenoid for Mazda B2000

PC-1668875
PartCatalog Mixture Control Solenoid for Mazda B2000 Cover
Mixture Control Solenoid Compatible With Mazda B2000 2.0L L4 1987 1986 1984 1983 1982 1981 1980 1979 P-1668875

The PartCatalog Mixture Solenoid is a reliable replacement part designed specifically for Mazda B2000 models from 1979 to 1987. It offers high-quality performance that matches or surpasses your original solenoid, ensuring your vehicle runs smoothly. This solenoid fits your car perfectly, making installation quick and hassle-free—no need to worry about complicated setups. Additionally, it’s made to be fully compatible with your vehicle, so you can trust it will work just like the original part. This makes it a smart choice for keeping your car’s emission system in top shape without any guesswork.

What We Like
High-quality performance
Easy, direct installation
Perfect vehicle compatibility
OE replacement standard
#TOP 7

Standard Motor MX42 Mixture Control Solenoid

Standard Motor MX42 Mixture Control Solenoid Cover
Standard Motor Products MX42 Mixture Control Solenoid

The Standard Motor MX42 Solenoid is designed as an emission mixture control solenoid, helping you manage your vehicle’s emissions more efficiently. Although specific features are not listed, this product typically ensures precise control over the air-fuel mixture, which can improve engine performance and reduce harmful emissions. By using this solenoid, you can expect smoother engine operation and potentially better fuel economy. It’s a practical choice for those looking to maintain or improve their vehicle’s emission system with a reliable component from a trusted brand.

What We Like
Emission control
Precise mixture regulation
Engine performance improvement
Fuel economy support
Reliable brand
#TOP 8

Standard Motor Products MX27 Mixture Control Solenoid

Standard Motor Products MX27 Mixture Control Solenoid Cover
Standard Motor Products Mixture Control Solenoid - MX27

The Standard MX27 Solenoid is a high-quality emission mixture control solenoid from Standard Motor Products. This solenoid is designed to regulate the fuel mixture in your vehicle's engine, ensuring optimal performance and fuel efficiency. With a package height of 4.83 inches, length of 10.92 inches, width of 9.9 inches, and weight of 6.84 pounds, this solenoid is compact and lightweight, making it easy to install. The MX27 Solenoid is a reliable and durable solution for maintaining the proper air-fuel ratio in your vehicle, resulting in smoother operation and reduced emissions. Upgrade your vehicle's performance with the Standard MX27 Solenoid.

What We Like
Optimal Performance
Fuel Efficiency
Compact and Lightweight
#TOP 9

Sawyer Auto Mixture Control Solenoid for 2.0L Mazda 1979-1990

PAT-155370
Sawyer Auto Mixture Control Solenoid for 2.0L Mazda 1979-1990 Cover
Replacement Mixture Control Solenoid for 1979-1990 Mazda 626, B2000, B2200, MX-6 (2.0L 4 Cylinder)

The Sawyer Auto Mixture Solenoid is designed to fit 2.0L 4-cylinder engines in Mazda models from 1979 to 1990, ensuring a perfect match for your vehicle. It is built with modern manufacturing techniques, so you get a reliable and high-quality part that you can count on. This replacement uses durable materials that often exceed the original equipment standards, giving you a longer-lasting solution. Plus, it installs easily as a direct replacement, saving you time and effort during installation. This makes it a convenient and trustworthy choice to maintain your car’s fuel mixture control system.

What We Like
Precise fitment for 2.0L Mazda engines
High-quality modern manufacturing
Durable, improved materials
Easy direct replacement
#TOP 10

Sawyer Auto Mixture Control Solenoid for 2.0L Mazda 626/B2000/B2200/MX-6

PAT-155369
Sawyer Auto Mixture Control Solenoid for 2.0L Mazda 626/B2000/B2200/MX-6 Cover
Mechanics Choice Mixture Control Solenoid for 1979-1990 Mazda 626, B2000, B2200, MX-6 (2.0L 4 Cylinder)

The Sawyer Auto Mixture Solenoid is designed to fit 2.0L 4-cylinder engines in Mazda 626, B2000, B2200, and MX-6 models from 1979 to 1990. Its precise fit with a 3-screw attachment means you can easily replace your old solenoid without hassle. Made with modern tools and high-quality materials, this part ensures durability and reliable performance, giving you peace of mind on the road. Plus, it’s built to the same exact specifications as your original part, so installation is straightforward and seamless, just like the factory unit.

What We Like
Exact 3-screw fitment
High-quality modern manufacturing
Durable replacement materials
Direct factory-like installation
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does a mixture control solenoid do?

The mixture control solenoid is responsible for adjusting the air-fuel mixture in a computer-controlled carburetor. It receives input from sensors like the MAP (Manifold Absolute Pressure) and O2 (Oxygen) sensor, and based on this input, the solenoid is cycled on and off multiple times per second by the computer (ECU) to regulate the mixture.

2. What are the two main causes of solenoid failure?

There are two common causes of solenoid failure. The first is the presence of dirt or debris in the solenoid valve, which accounts for approximately 80% of solenoid malfunctions. The second cause is a too low differential pressure for indirectly operated solenoid valves. These issues can often be easily resolved to restore proper solenoid function.

Editor's Notes

During our emission mixture control solenoid research, we found 13 emission mixture control solenoid products and shortlisted 10 quality products. We collected and analyzed 5,007 customer reviews through our big data system to write the emission mixture control solenoids list. We found that most customers choose emission mixture control solenoids with an average price of $177.33.

The emission mixture control solenoids are available for purchase. We have researched hundreds of brands and picked the top brands of emission mixture control solenoids, including Standard Motor Products, Sawyer Auto, PartCatalog. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

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.