Looking for the best 4040 humidifier solenoid valve replacement? We’ve tested and reviewed top options to help you find the perfect fit for your humidifier.
Maintaining the right humidity in your home is key to comfort and health. A 4040 humidifier solenoid valve is a crucial part that controls water flow, ensuring your humidifier works perfectly. Whether you’re replacing a worn-out valve or upgrading, choosing the best one can make a big difference.
We’ve tested and reviewed top 4040 humidifier solenoid valves to help you find the perfect fit. From durable materials to easy installation, these valves are designed to keep your home’s humidity just right. Say goodbye to dryness and hello to a cozy, comfortable space.
Ready to upgrade? Let’s explore the best options for your humidifier. Simple, reliable, and effective—these valves are here to make your life easier.
List of Top 10 4040 Humidifier Solenoid Replacement Valves
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
4040 Humidifier Solenoid Valve Replacement Part by AMI PARTS |
This 4040 Humidifier Solenoid Valve is perfect for homeowners with Aprilaire humidifiers (models 400, 500, 600, or 700) who need a quick, easy fix. It’s simple to install and ensures comfortable humidity in your home. |
|
![]() |
4040 Humidifier Solenoid Replacement Water Valve A2012-S118 for Aprilaire |
This humidifier valve is perfect for homeowners with an Aprilaire humidifier who want to keep their air comfortable and reduce dryness. It’s easy to install and works reliably. |
|
![]() |
4040 Humidifier Solenoid Valve Replacement for Aprilaire Whole House |
This 4040 Humidifier Solenoid Valve is perfect for homeowners who want to keep their air fresh and comfortable. It’s ideal for those with Aprilaire Whole House Humidifiers looking for a reliable replacement part that’s easy to install and built to last. |
|
![]() |
4040 Humidifier Solenoid Replacement Water Valve A2012-S118 for Aprilaire |
This 4040 Humidifier Solenoid Valve is perfect for Aprilaire humidifier owners who need a reliable, easy-to-install replacement. It’s ideal for keeping your home’s air comfortable. |
|
![]() |
AprilAire 4040 Solenoid Valve, 24 Volt for AprilAire Whole House Humidifier Models 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760, 0.5 ounces |
The AprilAire 4040 Solenoid Valve is perfect for homeowners with AprilAire Whole House Humidifiers. It keeps your humidifier running smoothly, ensuring comfortable humidity levels in your home. |
|
![]() |
Humidifier Water Solenoid Valve 4040 Replacement Humidifier Valve |
This humidifier valve is perfect for anyone with an Aprilaire humidifier who needs a reliable fix. It’s easy to install and stops water leaks, keeping your home comfortable. |
|
![]() |
4040 Humidifier Solenoid Valve, for Aprilaire Humidifier Accessories 400 500 600 700 220 224 Series Replacement Part, B2015-S85 B2017-S85 | 24V | 2.3W | 60Hz |
This 4040 Humidifier Solenoid Valve is perfect for homeowners with Aprilaire whole house humidifiers who need a reliable replacement part. It’s easy to install and works seamlessly with models like 220, 400, 500, 600, and 700. |
|
![]() |
4040 A2012-S118 Humidifier Solenoid Valve 24V Fit for Aprila-ire Humidifier |
This 4040 A2012-S118 Humidifier Solenoid Valve is perfect for homeowners with Aprila-ire humidifiers who want a reliable fix for common issues like leaks or irregular water flow. It’s easy to install and ensures comfortable humidity levels in your home. |
|
![]() |
4040 Humidifier Water Solenoid Valve,24 Volts Humidifier Solenoid Valve Fit for Aprilaire Humidifier 240 400 500 600 700 B2015-S85 B2017-S85 Etc by Cenipar |
This humidifier water solenoid valve is perfect for anyone with an Aprilaire humidifier who wants easy, reliable humidity control. It’s great for DIYers looking to save time and money on repairs. |
|
![]() |
4040 Solenoid Valve Replacement for Aprilaire Humidifier B2015-S85 B2017-S85 400 500 600 700 220 224 Solenoid Valve by Techecook, 24volts 4040 Humidifier Water Solenoid Valves – Blue |
This 4040 Solenoid Valve is perfect for homeowners with Aprilaire Humidifiers who want to fix dry air and water flow issues. It’s easy to install and works with many models, making it a great choice for quick repairs. |
Detailed Reviews
Discover the top 10 4040 Humidifier Solenoid Replacement Valves, carefully selected based on expert reviews and customer feedback. Each product is evaluated for performance, durability, and value, ensuring you find the perfect fit for your humidifier. Whether you prioritize comfort, affordability, or ease of installation, this guide has you covered. Dive in to find the best replacement valve that meets your needs and keeps your home’s humidity just right.
1. 4040 Humidifier Solenoid Valve Replacement Part by AMI PARTS

The 4040 Humidifier Solenoid Valve by AMI PARTS controls water flow to your humidifier. It ensures proper humidity for a comfortable home. This part is easy to install and built to last.
It fits Aprilaire models 400, 500, 600, and 700 series. The replacement part is made from high-quality material and well-tested for durability.
Installation takes just a few minutes with basic tools. You get 180 days to return or exchange it. Buy with confidence and contact us for quick support.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 Humidifier Solenoid Valve is perfect for homeowners with Aprilaire humidifiers (models 400, 500, 600, or 700) who need a quick, easy fix. It’s simple to install and ensures comfortable humidity in your home.
Ready to Purchase?
2. 4040 Humidifier Solenoid Replacement Water Valve A2012-S118 for Aprilaire

The PETOX 4040 humidifier solenoid valve is a reliable replacement for Aprilaire humidifiers. It works with many models, ensuring wide compatibility.
Made from premium materials like brass and stainless steel, this valve is durable and long-lasting. It includes essential parts for easy installation, making it a complete solution.
Controls water flow, maintains ideal humidity, and improves indoor comfort. Simple installation with basic tools. Trusted brand with excellent support.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This humidifier valve is perfect for homeowners with an Aprilaire humidifier who want to keep their air comfortable and reduce dryness. It’s easy to install and works reliably.
Ready to Purchase?
3. 4040 Humidifier Solenoid Valve Replacement for Aprilaire Whole House

The 4040 Humidifier Solenoid Valve is a reliable replacement for your Aprilaire Whole House Humidifier. It works with many models, ensuring a perfect fit for your system.
This valve controls water flow, helping maintain optimal humidity levels of 35% to 45%. It’s made of durable materials like brass and stainless steel, ensuring long-lasting performance.
Installation is quick and easy, taking just a few minutes. Funmit offers quality parts and great service, so you can shop with confidence.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 Humidifier Solenoid Valve is perfect for homeowners who want to keep their air fresh and comfortable. It’s ideal for those with Aprilaire Whole House Humidifiers looking for a reliable replacement part that’s easy to install and built to last.
Ready to Purchase?
4. 4040 Humidifier Solenoid Replacement Water Valve A2012-S118 for Aprilaire

The PETOX 4040 Humidifier Solenoid Valve is a reliable replacement for many Aprilaire models. It helps control water flow, keeping your home’s humidity just right.
Made from brass, stainless steel, and copper, it’s built to last. The package includes all needed parts for quick installation.
With this valve, you can maintain a comfortable home environment. It reduces dryness and keeps air moist. PETOX offers great support, ensuring a satisfying experience.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 Humidifier Solenoid Valve is perfect for Aprilaire humidifier owners who need a reliable, easy-to-install replacement. It’s ideal for keeping your home’s air comfortable.
Ready to Purchase?
5. AprilAire 4040 Solenoid Valve, 24 Volt for AprilAire Whole House Humidifier Models 400, 400M, 500, 500M, 600, 600M, 558, 550A, 550, 568, 560A, 560, 700, 700M, 768, 760A, 760, 0.5 ounces

The AprilAire 4040 Solenoid Valve is a genuine replacement part for your AprilAire humidifier. It works with many models to keep your system running smoothly.
This valve controls water flow, ensuring your home gets the right amount of humidity. It includes all installation parts like the strainer, sleeve, and nut.
The 4040 Solenoid Valve is essential for maintaining proper humidity levels. It’s easy to install and keeps your humidifier working efficiently.
| Pros | Cons |
|---|---|
|
|
Perfect For:
The AprilAire 4040 Solenoid Valve is perfect for homeowners with AprilAire Whole House Humidifiers. It keeps your humidifier running smoothly, ensuring comfortable humidity levels in your home.
Ready to Purchase?
6. Humidifier Water Solenoid Valve 4040 Replacement Humidifier Valve

The Humidifier Water Solenoid Valve 4040 is a reliable replacement for your humidifier. It controls water flow to keep your home’s humidity just right. This valve comes with all essential parts for easy setup.
Made of solid brass, this valve is sturdy and durable. It meets OEM standards, ensuring a perfect fit for your humidifier. Say goodbye to leaks and constant water flow with this well-tested part.
This valve is compatible with many Aprilaire models. Installation is simple, requiring just a screwdriver and wrench. Need help? Our quick response team is here to assist within 24 hours.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This humidifier valve is perfect for anyone with an Aprilaire humidifier who needs a reliable fix. It’s easy to install and stops water leaks, keeping your home comfortable.
Ready to Purchase?
7. 4040 Humidifier Solenoid Valve, for Aprilaire Humidifier Accessories 400 500 600 700 220 224 Series Replacement Part, B2015-S85 B2017-S85 | 24V | 2.3W | 60Hz

The 4040 Humidifier Solenoid Valve is a perfect fit for Aprilaire humidifiers. It works with models 220, 224, 400, 500, 600, 700, and more. This replacement part ensures your humidifier runs smoothly.
Made from solid brass and stainless steel, it’s sturdy and durable. It fixes issues like water running continuously, saving you time and money.
The package includes a compression nut, washer, and strainer. Installation is easy with just a screwdriver and wrench. Enjoy optimal humidity and worry-free returns if needed.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 Humidifier Solenoid Valve is perfect for homeowners with Aprilaire whole house humidifiers who need a reliable replacement part. It’s easy to install and works seamlessly with models like 220, 400, 500, 600, and 700.
Ready to Purchase?
8. 4040 A2012-S118 Humidifier Solenoid Valve 24V Fit for Aprila-ire Humidifier

The 4040 A2012-S118 Humidifier Solenoid Valve is a premium brass replacement designed for Aprilaire humidifiers. It operates at 24V and ensures precise water flow control, creating a comfortable living environment. This valve is durable and factory-tested for reliable performance.
This valve fixes common humidifier issues like leaks, irregular water flow, and inconsistent humidity. It’s compatible with Aprilaire 400, 500, 600, 700 series models and replaces multiple part numbers. Installation is quick and easy, taking just 5 minutes with basic tools.
The complete kit includes everything needed for DIY installation: valve, strainer, compression sleeve, and nut. Fetechmate offers 1-year support, ensuring confidence in your purchase. Buy with total peace of mind.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 A2012-S118 Humidifier Solenoid Valve is perfect for homeowners with Aprila-ire humidifiers who want a reliable fix for common issues like leaks or irregular water flow. It’s easy to install and ensures comfortable humidity levels in your home.
Ready to Purchase?
9. 4040 Humidifier Water Solenoid Valve,24 Volts Humidifier Solenoid Valve Fit for Aprilaire Humidifier 240 400 500 600 700 B2015-S85 B2017-S85 Etc by Cenipar

The Cenipar 4040 Humidifier Water Solenoid Valve is a durable upgrade for your humidifier. It fits Aprilaire models like 240, 400, 500, 600, and 700. Made of solid brass and stainless steel, it’s built to last.
This valve offers precise humidity control, keeping your home at 35%-45% moisture. It’s easy to install with just a screwdriver and wrench, saving you time and money.
Enjoy a 1-year warranty for peace of mind. It improves air quality, reduces dry skin, and helps you breathe easier.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This humidifier water solenoid valve is perfect for anyone with an Aprilaire humidifier who wants easy, reliable humidity control. It’s great for DIYers looking to save time and money on repairs.
Ready to Purchase?
10. 4040 Solenoid Valve Replacement for Aprilaire Humidifier B2015-S85 B2017-S85 400 500 600 700 220 224 Solenoid Valve by Techecook, 24volts 4040 Humidifier Water Solenoid Valves – Blue

The 4040 Solenoid Valve is a replacement part for Aprilaire Humidifiers. It controls water flow, helping maintain optimal indoor humidity. This valve is compatible with many Aprilaire models, ensuring efficient humidifier performance.
Made of durable brass and stainless steel, it includes essential parts for easy installation. A 365-day warranty guarantees quality and customer satisfaction.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This 4040 Solenoid Valve is perfect for homeowners with Aprilaire Humidifiers who want to fix dry air and water flow issues. It’s easy to install and works with many models, making it a great choice for quick repairs.
Ready to Purchase?
Buying Guide
Choosing the right 4040 humidifier solenoid valve is easy with our guide. We’ll help you find the best fit for your humidifier. Enjoy a comfortable home with the right valve.
Factors to Consider When Buying a 4040 Humidifier Solenoid Valve:
-
Compatibility: Make sure the valve fits your humidifier model. Check for specific Aprilaire models like 400, 500, 600, or 700 series.
-
Material: Look for durable materials like brass or stainless steel. These ensure long-lasting performance and reliability.
-
Installation: Choose a valve with easy installation. Most require basic tools like a screwdriver and wrench.
-
Warranty: Opt for a valve with a good warranty. This gives you peace of mind and assurance of quality.
-
Performance: Select a valve that controls water flow effectively. It should maintain ideal humidity for a comfortable home.
-
Brand Reputation: Go for trusted brands with excellent customer support. This ensures quick help if needed.
-
Price: Compare prices to find the best value. Balance cost with quality and features.
With these tips, you’ll find the perfect 4040 humidifier solenoid valve for your needs. Enjoy a cozy, comfortable home with the right choice.