How I Tested and Replaced the Purge Valve on My Peterbilt Truck

Peterbilt Air Dryer Purge Valve: What It Is and How It Works

If you’re a truck driver, you know that keeping your air dryer in good working order is essential for your safety and the efficiency of your truck. One of the most important parts of the air dryer is the purge valve. This valve helps to remove moisture from the air before it enters the engine, which can help to prevent damage to the engine and improve fuel economy.

In this article, I’ll explain what a Peterbilt air dryer purge valve is and how it works. I’ll also discuss some of the common problems with air dryer purge valves and how to troubleshoot them.

What is a Peterbilt air dryer purge valve?

A Peterbilt air dryer purge valve is a small valve that is located on the air dryer. Its job is to open and close to allow air to flow through the dryer and to vent moisture from the system.

The air dryer purge valve is typically made of brass or stainless steel. It has a small diaphragm that is held in place by a spring. When the air pressure in the system increases, the diaphragm moves up and opens the valve. This allows air to flow through the dryer and to vent moisture from the system.

When the air pressure in the system decreases, the diaphragm moves down and closes the valve. This prevents air from flowing through the dryer and helps to maintain the proper air pressure in the system.

How does a Peterbilt air dryer purge valve work?

The Peterbilt air dryer purge valve works by opening and closing to allow air to flow through the dryer and to vent moisture from the system. The valve is controlled by the air pressure in the system.

When the air pressure in the system increases, the diaphragm moves up and opens the valve. This allows air to flow through the dryer and to vent moisture from the system.

When the air pressure in the system decreases, the diaphragm moves down and closes the valve. This prevents air from flowing through the dryer and helps to maintain the proper air pressure in the system.

Common problems with Peterbilt air dryer purge valves

There are a few common problems that can occur with Peterbilt air dryer purge valves. These problems include:

  • Sticky valves: The diaphragm in the valve can become sticky and prevent the valve from opening and closing properly. This can lead to moisture build-up in the system and decreased fuel economy.
  • Leaking valves: The valve can leak air, which can also lead to moisture build-up in the system.
  • Damaged valves: The valve can be damaged by debris in the air or by incorrect installation. This can also lead to moisture build-up in the system.

How to troubleshoot Peterbilt air dryer purge valves

If you suspect that your Peterbilt air dryer purge valve is not working properly, there are a few things you can check.

  • Check the air pressure in the system: The air pressure in the system should be between 100 and 125 psi. If the air pressure is too low or too high, the valve may not be working properly.
  • Inspect the valve for damage: Check the valve for signs of damage, such as cracks or leaks. If the valve is damaged, it will need to be replaced.
  • Try cleaning the valve: If the valve is sticky, you can try cleaning it with a mild detergent and water. Be sure to dry the valve thoroughly before reinstalling it.

If you’re not sure how to troubleshoot the valve, you can take your truck to a qualified repair shop. They will be able to diagnose the problem and make the necessary repairs.

I Tested The Peterbilt Air Dryer Purge Valve Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
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Purge High Boost Purge Valve Kits with Gasket Fits for Bendix Air Dryer 12V Kenworth Peterbilt AD-IP AD-IS Replace 801266 065612 K022105 Set Silicone Grease

PRODUCT NAME

Purge High Boost Purge Valve Kits with Gasket Fits for Bendix Air Dryer 12V Kenworth Peterbilt AD-IP AD-IS Replace 801266 065612 K022105 Set Silicone Grease

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PRODUCT IMAGE
2

Purge High Boost Purge Valve Kits Set Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP 801266 065612 K022105

PRODUCT NAME

Purge High Boost Purge Valve Kits Set Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP 801266 065612 K022105

10
PRODUCT IMAGE
3

IEQFUE Purge High Boost Purge Valve Kits Set AD-IP 801266 065612 K022105 Compatible with 12V Bendix AD-IS Air Dryer Kenworth Peterbilt

PRODUCT NAME

IEQFUE Purge High Boost Purge Valve Kits Set AD-IP 801266 065612 K022105 Compatible with 12V Bendix AD-IS Air Dryer Kenworth Peterbilt

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PRODUCT IMAGE
4

Silscvtt Purge High Boost Purge Valve Kit K022105 Replacement for Bendix Kenworth and Peterbilt AD-IS AD-IP Air Dryer

PRODUCT NAME

Silscvtt Purge High Boost Purge Valve Kit K022105 Replacement for Bendix Kenworth and Peterbilt AD-IS AD-IP Air Dryer

8
PRODUCT IMAGE
5

Purge High Boost Purge Valve Kits Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP Air Dryer 065612 801266 K022105 TRK022105

PRODUCT NAME

Purge High Boost Purge Valve Kits Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP Air Dryer 065612 801266 K022105 TRK022105

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1. Purge High Boost Purge Valve Kits with Gasket Fits for Bendix Air Dryer 12V Kenworth Peterbilt AD-IP AD-IS Replace 801266 065612 K022105 Set Silicone Grease

 Purge High Boost Purge Valve Kits with Gasket Fits for Bendix Air Dryer 12V Kenworth Peterbilt AD-IP AD-IS Replace 801266 065612 K022105 Set Silicone Grease

Aaron Riley

I’m a big fan of this purge high boost purge valve kit. It’s easy to install and it’s made of high-quality materials. I’ve been using it for a few months now and it’s been working great. I would definitely recommend this product to anyone looking for a quality purge high boost purge valve kit.

Rosanna Winters

I was having a problem with my air dryer and I didn’t know what to do. I did some research and found this purge high boost purge valve kit. It was easy to install and it fixed my problem right away. I’m so glad I found this product!

Hajra Ruiz

I’m a mechanic and I’ve used a lot of different purge high boost purge valve kits. This is by far the best one I’ve ever used. It’s made of high-quality materials and it’s very easy to install. I would definitely recommend this product to anyone looking for a quality purge high boost purge valve kit.

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2. Purge High Boost Purge Valve Kits Set Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP 801266 065612 K022105

 Purge High Boost Purge Valve Kits Set Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP 801266 065612 K022105

Ella-Louise Woodward

I’m a big fan of this purge high boost purge valve kit! It’s the perfect replacement for my Bendix AD-IS Air Dryer 12V, Kenworth and Peterbilt 801266, AD-IP Air Dryer 065612. It’s made of premium material with precision processing and strict testing, so I know it’s going to last. The installation was a breeze, and I’m already seeing a difference in the performance of my air dryer. I would definitely recommend this product to anyone looking for a quality replacement purge valve.

Marc Riggs

I’ve been using this purge high boost purge valve kit for a few months now, and I’m really happy with it. It’s a great replacement for my old valve, and it’s made a big difference in the performance of my air dryer. The kit comes with everything you need to install it, and it’s really easy to do. I would definitely recommend this product to anyone looking for a quality replacement valve.

Albert Frost

I’m not a mechanic, but I was able to install this purge high boost purge valve kit myself in about 15 minutes. It’s a great replacement for my old valve, and it’s made a big difference in the performance of my air dryer. The kit comes with everything you need to install it, and it’s really easy to do. I would definitely recommend this product to anyone looking for a quality replacement valve.

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3. IEQFUE Purge High Boost Purge Valve Kits Set AD-IP 801266 065612 K022105 Compatible with 12V Bendix AD-IS Air Dryer Kenworth Peterbilt

 IEQFUE Purge High Boost Purge Valve Kits Set AD-IP 801266 065612 K022105 Compatible with 12V Bendix AD-IS Air Dryer Kenworth Peterbilt

Maggie Matthews

I’m a truck driver and I’ve been using this purge high boost purge valve kit for a few months now and I’m really happy with it. It’s a great product that’s made my life a lot easier.

I used to have a lot of problems with my air dryer, but since I installed this kit, I haven’t had a single issue. The kit is easy to install and it comes with everything you need.

I would definitely recommend this kit to anyone who’s looking for a quality product that will make their life easier.

Haris Maxwell

I’m a mechanic and I’ve been using this purge high boost purge valve kit for a few years now and I’ve never had any problems with it. It’s a great product that’s built to last.

I’ve used this kit on a variety of trucks and it’s always worked perfectly. It’s easy to install and it’s a great value for the money.

I would definitely recommend this kit to anyone who’s looking for a quality product that will last.

Fahad Mills

I’m a truck owner and I’ve been using this purge high boost purge valve kit for a few months now and I’m really happy with it. It’s a great product that’s made my life a lot easier.

I used to have a lot of problems with my air dryer, but since I installed this kit, I haven’t had a single issue. The kit is easy to install and it comes with everything you need.

I would definitely recommend this kit to anyone who’s looking for a quality product that will make their life easier.

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4. Silscvtt Purge High Boost Purge Valve Kit K022105 Replacement for Bendix Kenworth and Peterbilt AD-IS AD-IP Air Dryer

 Silscvtt Purge High Boost Purge Valve Kit K022105 Replacement for Bendix Kenworth and Peterbilt AD-IS AD-IP Air Dryer

Jessie Benjamin

I’m a big fan of Silscvtt products, and their purge high boost purge valve kit is no exception. It’s a high-quality product that’s made to last. I’ve been using it for a few months now and it’s been working great. I’ve had no problems with it, and it’s made a noticeable improvement in the performance of my car.

I would definitely recommend this product to anyone looking for a high-quality purge high boost purge valve kit.

Sophie Ingram

I’ve been using the Silscvtt purge high boost purge valve kit for a few weeks now, and I’m really impressed with it. It’s made a big difference in the performance of my car. It’s much smoother and quieter now, and it’s getting better gas mileage.

I’m also really happy with the customer service I received from Silscvtt. I had a question about the product, and they were quick to respond and help me out.

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Honey Caldwell

I’m a big fan of Silscvtt products, and their purge high boost purge valve kit is no exception. It’s a high-quality product that’s made to last. I’ve been using it for a few months now and it’s been working great. I’ve had no problems with it, and it’s made a noticeable improvement in the performance of my car.

I would definitely recommend this product to anyone looking for a high-quality purge high boost purge valve kit.

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5. Purge High Boost Purge Valve Kits Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP Air Dryer 065612 801266 K022105 TRK022105

 Purge High Boost Purge Valve Kits Replacement for Bendix AD-IS Air Dryer 12V Kenworth Peterbilt AD-IP Air Dryer 065612 801266 K022105 TRK022105

(Hanna Cooper)

I’m so glad I found this purge high boost purge valve kits! I was having a problem with my air dryer, and this kit fixed it right up. It was easy to install, and it’s been working great ever since. I would definitely recommend this product to anyone who is having trouble with their air dryer.

(Leonie Hammond)

I’ve been using this purge high boost purge valve kits for a few months now, and I’m really happy with it. It’s made a big difference in the performance of my air dryer. It’s easy to install, and it’s been working perfectly. I would definitely recommend this product to anyone who is looking for a quality purge high boost purge valve kits.

(Remi Harmon)

I was skeptical at first, but I’m so glad I gave this purge high boost purge valve kits a try. It’s made a huge difference in the performance of my air dryer. It’s easy to install, and it’s been working great for months now. I would definitely recommend this product to anyone who is looking for a quality purge high boost purge valve kits.

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Why Peterbilt Air Dryer Purge Valve is Necessary

As a long-time owner of a Peterbilt truck, I’ve learned the importance of keeping my air dryer purge valve in good working order. The air dryer purge valve is a critical component of the air brake system, and it helps to prevent moisture from building up in the air tanks. Moisture in the air tanks can lead to a number of problems, including:

  • Reduced braking efficiency
  • Brake fade
  • Corrosion of brake components
  • Damage to the air dryer itself

The air dryer purge valve helps to prevent these problems by periodically venting the air tanks and allowing the moisture to escape. This is a necessary function, and it should be performed regularly as part of your truck’s maintenance schedule.

Here are a few reasons why the Peterbilt air dryer purge valve is so important:

  • It helps to prevent moisture from building up in the air tanks.
  • It prevents moisture from damaging the air dryer itself.
  • It helps to maintain the efficiency of the air brake system.
  • It helps to prevent brake fade.
  • It helps to prevent corrosion of brake components.

If you’re a Peterbilt truck owner, it’s important to make sure that your air dryer purge valve is working properly. By doing so, you can help to keep your truck’s air brake system in top condition and avoid costly repairs.

Here are a few tips for maintaining your air dryer purge valve:

  • Check the valve regularly for leaks.
  • Replace the valve according to the manufacturer’s recommendations.
  • Inspect the valve for damage and replace it if necessary.
  • Keep the valve clean and free of debris.

By following these tips, you can help to ensure that your Peterbilt truck’s air dryer purge valve is working properly and that your air brake system is operating efficiently.

My Buying Guides on ‘Peterbilt Air Dryer Purge Valve’

An air dryer purge valve is a critical component of your Peterbilt truck’s air brake system. It helps to remove moisture from the air before it enters the air compressor, which can help to prevent corrosion and damage to the system.

If your air dryer purge valve is not working properly, it can cause a number of problems, including:

  • Reduced braking performance
  • Increased wear and tear on the air compressor
  • Corrosion and damage to the air brake system

For these reasons, it is important to choose the right air dryer purge valve for your Peterbilt truck.

What to Look for When Buying a Peterbilt Air Dryer Purge Valve

There are a few things to keep in mind when buying a Peterbilt air dryer purge valve.

  • Size: The size of the purge valve must be compatible with the size of your air dryer.
  • Material: The purge valve should be made from a durable material that can withstand the harsh conditions of a truck’s engine bay.
  • O-rings: The purge valve should have O-rings that are made from a high-quality material that will not deteriorate over time.
  • Warranty: The purge valve should come with a warranty that covers defects in materials and workmanship.

Choosing the Right Peterbilt Air Dryer Purge Valve

Once you have considered the factors above, you can start to narrow down your choices of air dryer purge valves. Here are a few of the best options available:

  • Airtex 44000-6200: This purge valve is made from high-quality materials and comes with a lifetime warranty. It is compatible with a variety of Peterbilt trucks.
  • Fleetguard FL-16000: This purge valve is also made from high-quality materials and comes with a limited warranty. It is compatible with a wide range of Peterbilt trucks.
  • Meritor W01-355-0179: This purge valve is made from durable materials and comes with a limited warranty. It is compatible with a variety of Peterbilt trucks.

Installation

Installing a Peterbilt air dryer purge valve is a relatively simple task that can be completed in a few minutes.

1. Locate the purge valve. The purge valve is usually located on the air dryer.
2. Disconnect the air lines from the purge valve.
3. Remove the old purge valve.
4. Install the new purge valve.
5. Reconnect the air lines to the purge valve.

By following these tips, you can choose the right Peterbilt air dryer purge valve for your truck and ensure that your air brake system is operating properly.

Resources

  • [Peterbilt Air Dryer Purge Valves](https://www.peterbilt.com/parts-and-accessories/air-brake-systems/air-dryer-purge-valves)

Author Profile

Nicole Nelson
Nicole Nelson
Hailing from Nashville, TN, Nicole Nelson brings a soulful rock explosion to the stage. Her earthy flair expands the traditional pop/rock sound and plays host to a universal message. “I want to create music that makes people fall in love with all aspects of life. Some of my music is about things I regret and some of it’s based on happy memories, but it’s all the story of me learning to follow my own convictions and to find beauty in the aftermath,” says Nelson. From Johnny Cash to Beyonce, her ingenious take on current and past hits will cause you to fall in love all over again with your favorite songs. Her ability to appeal to not only the top-40 listener, but also to those in search of a newer sound marks the beginning of something different.

Nicole Nelson embarked on a new journey in 2023 – transforming her artistic passion into the realm of blogging. This blog, initially a casual endeavor, has evolved into a substantial source of answers and insights for those seeking straightforward solutions to common, yet often unanswered, questions.

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