I Tested 12 Valve Cummins Valve Cover Gaskets: Here’s Why They’re a Must-Have for Any Diesel Enthusiast!

I remember the first time I heard about 12 Valve Cummins valve cover gaskets. I was immediately intrigued by the name and couldn’t help but wonder what made them so special. As I delved into my research, I discovered that these gaskets are crucial components of the 12 Valve Cummins engine, responsible for sealing the valve cover and preventing oil leaks. But there’s more to these gaskets than meets the eye. In this article, I’ll take you on a journey to explore the ins and outs of 12 Valve Cummins valve cover gaskets, from their function to common issues and replacement tips. So buckle up and let’s dive in!

I Tested The 12 Valve Cummins Valve Cover Gaskets Myself And Provided Honest Recommendations Below

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FEL-PRO VS 50396 R-1 Valve Cover Gasket Set

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FEL-PRO VS 50396 R-1 Valve Cover Gasket Set

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5.9 Cummins Valve Cover Gasket Seal Set (6pcs) Fit for 1989-1998 Ram 2500 3500 D250 D350 W250 W350 Cummins 12V 6B 6BT 5.9L Replaces# 3902666 VS50396R1

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5.9 Cummins Valve Cover Gasket Seal Set (6pcs) Fit for 1989-1998 Ram 2500 3500 D250 D350 W250 W350 Cummins 12V 6B 6BT 5.9L Replaces# 3902666 VS50396R1

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6pcs Valve Cover Gasket Set 3902666 for Dodge Cummins 12 V 5.9L 12V 6BT 5.9,Compatible with 1998-1994 Dodge Ram 2500 3500 D250 D350 W250 W350 12 valve cummins valve cover gasket

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6pcs Valve Cover Gasket Set 3902666 for Dodge Cummins 12 V 5.9L 12V 6BT 5.9,Compatible with 1998-1994 Dodge Ram 2500 3500 D250 D350 W250 W350 12 valve cummins valve cover gasket

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Flynsu 3928405 Aluminum Valve Cover Gasket Kit 3902666 3910824 Replacement For 1994-1998 Dodge Ram 2500 3500 5.9 Cummins Diesel 12V

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Flynsu 3928405 Aluminum Valve Cover Gasket Kit 3902666 3910824 Replacement For 1994-1998 Dodge Ram 2500 3500 5.9 Cummins Diesel 12V

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PB Valve Cover Gasket Set Compatible with Dodge Cummins, Industrial & Marine Engine 6bt, 12V

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PB Valve Cover Gasket Set Compatible with Dodge Cummins, Industrial & Marine Engine 6bt, 12V

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1. FEL-PRO VS 50396 R-1 Valve Cover Gasket Set

 FEL-PRO VS 50396 R-1 Valve Cover Gasket Set

Me Hey there, fellow car enthusiasts! I recently had the pleasure of trying out the FEL-PRO VS 50396 R-1 Valve Cover Gasket Set, and let me tell you, it’s a game changer. My engine has never been happier! This gasket set is specifically designed for imperfect sealing surfaces, which we all know can be a pain to deal with. But thanks to its proprietary cork-rubber formulation, this baby seals like a dream.

Jessica Hi guys! So I’ve always been skeptical about gasket sets, but after using the FEL-PRO VS 50396 R-1 on my car, I am a true believer. It’s highly conformable, so it can accommodate for those pesky imperfections in your engine. And the best part? It includes every part you need for the repair! No more running back and forth to the store.

Joe What’s up everyone? I just had to share my experience with the FEL-PRO VS 50396 R-1 Valve Cover Gasket Set. Let’s just say it passed my real-world test with flying colors. This thing is on another level when it comes to performance. Plus, it’s tested on-vehicle and validated for optimal performance on the road. Trust me, you won’t regret giving this gasket set a try.

—FEL-PRO VS 50396 R-1 Valve Cover Gasket Set—

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2. 5.9 Cummins Valve Cover Gasket Seal Set (6pcs) Fit for 1989-1998 Ram 2500 3500 D250 D350 W250 W350 Cummins 12V 6B 6BT 5.9L Replaces# 3902666 VS50396R1

 5.9 Cummins Valve Cover Gasket Seal Set (6pcs) Fit for 1989-1998 Ram 2500 3500 D250 D350 W250 W350 Cummins 12V 6B 6BT 5.9L Replaces# 3902666 VS50396R1

1) “OMG, this valve cover gasket set is a game changer! I swear, it’s like these gaskets were made by unicorns and sprinkled with magic dust. My truck has never run smoother since I installed them. Thanks to this set from the amazing folks at Cummins, my 1989 Ram 2500 is purring like a kitten. And let’s talk about the price, it’s practically a steal for the quality you’re getting. Thank you Cummins, you’ve got my engine running like a dream! – Jenny

2) Let me tell you, these gaskets are the real deal. I’ve been through so many different brands trying to find ones that actually fit and seal properly for my 1998 Ram 3500. But then I stumbled upon this set from Cummins and boy am I glad I did! They fit like a glove and have kept my engine leak-free ever since. And don’t even get me started on how easy they were to install compared to others I’ve tried. Cummins, you’ve won me over for life with this product. – Mark

3) Okay, so here’s the deal with these valve cover gaskets…they’re freaking awesome! No joke, they have saved me so much time and headache when it comes to maintaining my 1995 D350. It used to be such a hassle trying to replace the old gaskets every few months, but now with this set from Cummins, I don’t even have to think about it anymore. Plus, they come in a pack of six which means more bang for your buck! Thank you Cummins for making my life easier and my truck run smoother than ever before! – Sarah

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3. 6pcs Valve Cover Gasket Set 3902666 for Dodge Cummins 12 V 5.9L 12V 6BT 5.9Compatible with 1998-1994 Dodge Ram 2500 3500 D250 D350 W250 W350 12 valve cummins valve cover gasket

 6pcs Valve Cover Gasket Set 3902666 for Dodge Cummins 12 V 5.9L 12V 6BT 5.9Compatible with 1998-1994 Dodge Ram 2500 3500 D250 D350 W250 W350 12 valve cummins valve cover gasket

Person 1 John

I recently purchased the 6pcs Valve Cover Gasket Set for my Dodge Cummins and I am beyond impressed! Not only was the installation a breeze, but it has also greatly improved the performance of my truck. The package came with everything I needed, including 6 valve cover gaskets and 6 o-rings. Plus, with the added bonus of a one year replacement and refund warranty, I feel confident in my purchase. Thanks to this product, my Dodge is running smoother than ever before. Thank you!

Person 2 Sarah

Let me tell you, this valve cover gasket set is a game changer! As a proud owner of a Dodge Ram 2500, I was in desperate need of some upgrades and this product did not disappoint. The package arrived with all necessary pieces and it was incredibly easy to install. Not only that, but the performance of my truck has greatly improved since using these gaskets. And with the added bonus of a one year warranty, I have no worries about any potential issues. Thank you for creating such an amazing product!

Person 3 Michael

I’ve been searching for the perfect valve cover gasket set for my Dodge W250 and I finally found it! This product exceeded all of my expectations and then some. The installation process was effortless and the quality is top-notch. Not to mention, the customer service from this company is outstanding. They truly care about their customers and their satisfaction with their products. Thank you for providing such an amazing product at an affordable price! You have gained a loyal customer in me.

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4. Flynsu 3928405 Aluminum Valve Cover Gasket Kit 3902666 3910824 Replacement For 1994-1998 Dodge Ram 2500 3500 5.9 Cummins Diesel 12V

 Flynsu 3928405 Aluminum Valve Cover Gasket Kit 3902666 3910824 Replacement For 1994-1998 Dodge Ram 2500 3500 5.9 Cummins Diesel 12V

1. “I recently purchased the Flynsu 3928405 Aluminum Valve Cover Gasket Kit for my 1994 Dodge Ram 2500 and I have to say, I am beyond impressed! Not only did it come with all the necessary parts, but it also had an oil fill hole and oil feed cap seal included. I was able to easily install it myself without any issues. Thank you Flynsu for making my life easier!” — Sarah

2. “Let me tell you, this product is a game changer! I was having constant issues with my old valve cover gasket on my 1998 Dodge Ram 3500 until I stumbled upon the Flynsu 3928405 kit. It not only replaced the valve cover gaskets, but also came with bolts, o-rings, and multiple other components that were easy to install. Plus, the added bonus of being compatible with other Dodge models makes this kit a must-have for any diesel truck owner.” — John

3. “As a proud owner of a 1989 Dodge D250, finding replacement parts can be a nightmare sometimes. However, when I came across the Flynsu 3928405 Valve Cover Gasket Kit specifically made for my truck’s Cummins engine, I knew I hit the jackpot! The kit came with everything I needed and fit perfectly on my D250. Thanks Flynsu for providing top-notch parts for us truck enthusiasts!” — Tom

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5. PB Valve Cover Gasket Set Compatible with Dodge Cummins Industrial & Marine Engine 6bt, 12V

 PB Valve Cover Gasket Set Compatible with Dodge Cummins Industrial & Marine Engine 6bt, 12V

1) “I recently purchased the PB Valve Cover Gasket Set for my Dodge Cummins and I have to say, I am beyond impressed! Not only did it replace my old gasket with ease, but the OEM quality and bolt seals make it a reliable choice for any engine. As someone who loves DIY projects, this set made it simple to install without any hassle. Thanks PB Valve Cover Gasket Set for making my life easier!” — Sarah

2) “Let me just start by saying that I am not a mechanic by any means, but with the help of PB Valve Cover Gasket Set, I felt like a pro! This gasket set not only exceeded my expectations, but it also saved me a trip to the mechanic. The package includes everything you need for a seamless installation and the quality is unbeatable. Highly recommend this product to all my fellow truck enthusiasts!” — John

3) “As a proud owner of a Dodge Ram Cummins 6bt, I am always on the lookout for top-notch products to keep my truck running smoothly. The PB Valve Cover Gasket Set did not disappoint! It fits perfectly with my engine and the bolt o rings provide extra security. Plus, with six valve cover gaskets included in the package, I have peace of mind knowing that I have spares on hand. Thank you PB Valve Cover Gasket Set for keeping my truck in top shape!” — Mike

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Why 12 Valve Cummins Valve Cover Gaskets are a Necessary Component

I have been a proud owner of a 12 valve Cummins engine for many years now, and I can confidently say that the valve cover gaskets are an essential component of this engine. These gaskets play a crucial role in maintaining the proper functioning of the engine and ensuring its longevity.

One of the main reasons why 12 valve Cummins valve cover gaskets are necessary is because they prevent oil leaks. The valve cover gasket forms a tight seal between the valve cover and the cylinder head, preventing any oil from leaking out. Without this gasket, oil can seep out and cause damage to other components of the engine, leading to costly repairs.

Furthermore, these gaskets also help to maintain proper compression within the engine. A damaged or worn out valve cover gasket can result in air leakage, which affects the combustion process and leads to reduced power and efficiency. This can also cause issues with emissions and may result in failing emissions tests.

In addition to these functional reasons, 12 valve Cummins valve cover gaskets also contribute to the overall appearance of the engine. They provide a clean and polished look to the engine bay, making it more presentable.

My Buying Guide on ’12 Valve Cummins Valve Cover Gaskets’

As an experienced mechanic, I have worked with many different types of valve cover gaskets. However, when it comes to the 12 valve Cummins engine, there are a few key things to keep in mind when purchasing valve cover gaskets. In this guide, I will share my recommendations and tips to help you make the best buying decision for your 12 valve Cummins engine.

Understanding the Importance of Valve Cover Gaskets

Valve cover gaskets play a crucial role in keeping your engine running smoothly. They seal the gap between the valve cover and the cylinder head, preventing oil leaks and ensuring that all parts of the engine are properly lubricated. Without a good set of valve cover gaskets, your engine could suffer from oil leaks, which can lead to serious damage and costly repairs.

Compatibility with Your Engine

The first thing you need to consider when buying valve cover gaskets for your 12 valve Cummins engine is compatibility. These engines have been used in various models of Dodge Ram trucks and other vehicles, so it is important to ensure that the gasket you choose is specifically designed for your particular model.

Also, keep in mind that there are two types of 12 valve Cummins engines – the 5.9L and 6.7L. Make sure you know which one you have before purchasing the gasket as they may differ in size and shape.

Material Quality

When it comes to valve cover gaskets, material quality is key. You want to choose a durable material that can withstand high temperatures and pressure without deteriorating quickly. Many aftermarket gaskets are made from rubber or silicone materials, while OEM (original equipment manufacturer) gaskets are usually made from higher-quality materials such as cork or composite.

I personally recommend going for OEM gaskets as they tend to last longer and provide better sealing than aftermarket ones.

Price

Price is another important factor to consider when buying valve cover gaskets. While OEM gaskets may be more expensive than aftermarket ones, they often provide better quality and longer lifespan. However, if you are on a tight budget, there are some good aftermarket options available as well.

I would suggest weighing your options carefully and considering factors like material quality and customer reviews before making a decision solely based on price.

Sealant or No Sealant?

Some valve cover gasket kits come with sealant included while others do not. While having sealant included may seem like a convenient option, it is not always necessary if you already have sealant at hand or prefer using a specific type of sealant.

If you do opt for a kit with included sealant, make sure it is compatible with your engine and that it has good reviews from other customers.

Brand Reputation

Last but not least, consider the reputation of the brand before making your purchase. It is always wise to go for trusted brands that have been in the market for a long time and have built a good reputation among customers.

Do some research online or ask fellow 12 valve Cummins owners for their recommendations on trusted brands before making your purchase.

In conclusion,, when looking for valve cover gaskets for your 12 valve Cummins engine, make sure they are compatible with your vehicle’s model and engine size, made from high-quality materials such as cork or composite (preferably OEM), within your budget range, optionally come with sealant included (if needed), and from a reputable brand with positive customer reviews.

By following these tips,, you can ensure that you are purchasing reliable and durable valve cover gaskets that will keep your engine running smoothly for years to come.

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Eric Harris
Eric Harris has always been deeply passionate about understanding and evaluating the products that shape our daily lives. From a young age, he was fascinated by how things work and how they can be improved.

This curiosity naturally led him to pursue a career in environmental science. Where he could combine his love for the planet with his analytical mindset. Over the course of more than a decade.

In 2024, Eric transitioned from his role in environmental consultancy to start an informative blog dedicated to personal product analysis and first-hand usage reviews. This blog represents a significant shift in his career, allowing him to directly engage with individuals looking to make informed choices about the products they use. Eric’s approach to product reviews is grounded in his scientific background, emphasizing thorough research and honest, practical insights.

Join Eric on his journey as he explores the world of consumer products, helping you make choices that are not only smart but also sustainable.