Best Gasket Sealers for Valve Covers Reviewed

If you’re reading this, chances are you’ve experienced the tell-tale signs of a leaky valve cover – that burnt oil smell, a greasy engine, or maybe even a puddle forming under your car. Trust me, I’ve been there! A weeping valve cover isn’t just an unsightly mess; it can lead to oil loss, reduced engine performance, and even potential damage if left unchecked. Finding the best gasket sealers for valve covers is crucial for maintaining your engine’s health. While “sealers” can sometimes refer to liquid RTV, more often, a robust and well-designed gasket set is your primary line of defense against leaks. In this comprehensive guide, I’ve dug deep to review some of the top valve cover gasket sets on the market, focusing on their real-world performance, ease of installation, and overall value. My goal is to help you pick the right solution to keep your engine clean, sealed, and running smoothly.

IMAGE	PRODUCT NAME	AMAZON LINK
	FEL-PRO VS 50761 R Valve Cover Gasket Set	View on Amazon
	FEL-PRO VS 50735 R Valve Cover Gasket Set	View on Amazon
	FEL-PRO VS 50517 R Valve Cover Gasket Set	View on Amazon
	FEL-PRO VS 50454 R Valve Cover Gasket Set	View on Amazon
	FEL-PRO VS 50728 R Valve Cover Gasket Set	View on Amazon
	FEL-PRO VS 50604 R Valve Cover Gasket Set	View on Amazon
	YzusGomumu VS50830R Engine Valve Cover Gasket Set with…	View on Amazon

Product Reviews

FEL-PRO VS 50761 R Valve Cover Gasket Set

This Fel-Pro gasket set is a reliable choice for tackling stubborn valve cover leaks. What I really appreciate about Fel-Pro is their commitment to addressing real-world repair challenges; this set is designed specifically for imperfect sealing surfaces, which is super common in older engines. It features their proprietary cork-rubber formulation, which offers a great balance of flexibility and durability. You’ll find it’s highly conformable, meaning it can really hug those slightly warped valve covers to create a tight, leak-free seal. Plus, it typically comes with all the necessary components for a complete repair, saving you the hassle of hunting for extra bits. This gasket set is truly engineered to perform and is put through rigorous real-world testing to ensure it holds up on the road.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– Excellent for older engines with minor surface imperfections
– High-quality, durable materials
– Provides a long-lasting, reliable seal
– Often a complete kit, simplifying the repair
– Trusted brand reputation for gaskets

Cons:
– May require careful cleaning of the sealing surface for best results
– Cork-rubber can be less forgiving than pure rubber if over-tightened

Best for: DIY mechanics and professional technicians looking for a durable, flexible gasket solution for vehicles with potentially less-than-perfect valve cover seating areas.

User feedback summary: Many users report that this gasket set effectively stops leaks where other brands have failed, praising its conformability and the inclusion of all necessary hardware. They often mention the peace of mind that comes with using a Fel-Pro product.

FEL-PRO VS 50735 R Valve Cover Gasket Set

Another strong contender from Fel-Pro, the VS 50735 R set shares many of the robust qualities found across their professional line. It’s also engineered specifically for repair environments, making it ideal for those less-than-perfect engine surfaces you often encounter. The proprietary cork-rubber formulation is a standout, providing that essential flexibility to conform to minor irregularities, which is key for a truly superior seal. Like other Fel-Pro sets, it aims to include every part needed for the repair, minimizing surprises during installation. This dedication to real-world tested performance means you can install it with confidence, knowing it’s built to last and prevent those frustrating oil leaks.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– Reliable performance on compromised sealing surfaces
– Good heat and oil resistance from the cork-rubber blend
– Helps prevent future leaks effectively
– Complete kit streamlines the installation process
– Backed by Fel-Pro’s extensive engineering

Cons:
– Proper torque is crucial for optimal sealing, as with any gasket
– Some users might prefer full rubber gaskets for specific applications

Best for: Individuals seeking a dependable, high-quality valve cover gasket that offers excellent sealing even on slightly worn or irregular mating surfaces.

User feedback summary: Customers frequently commend the precise fit and the noticeable improvement in sealing after installation. They value the durability and the fact that it often resolves persistent oil leaks from valve covers.

FEL-PRO VS 50517 R Valve Cover Gasket Set

The FEL-PRO VS 50517 R is another example of Fel-Pro’s commitment to quality sealing. This gasket set truly shines in its ability to handle imperfect sealing surfaces, a common challenge for many older engines. Its backbone is the proprietary cork-rubber formulation, a material blend known for its excellent resilience and conformability. This means it can effectively bridge minor gaps and inconsistencies, creating a superior seal where rigid gaskets might fail. As with other Fel-Pro kits, it’s designed to provide every part necessary for the repair, making your job easier. The fact that these parts are real-world tested speaks volumes about their reliability and ensures they meet the demands of daily driving.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– Exceptional conformability for a tight seal
– Robust construction for long-term durability
– Reduces the likelihood of future leaks
– Comprehensive kit often includes grommets and other seals
– Trusted by mechanics for consistent quality

Cons:
– Might be slightly more expensive than generic alternatives
– Always double-check vehicle compatibility for your specific model

Best for: Mechanics and DIYers who prioritize a high-integrity seal on potentially challenging engine surfaces and want a brand known for engineering excellence.

User feedback summary: Users often highlight the snug fit and effective sealing, even on engines that previously had recurring leaks. They appreciate the quality feel of the gasket and the reliable performance over time.

FEL-PRO VS 50454 R Valve Cover Gasket Set

This FEL-PRO VS 50454 R Valve Cover Gasket Set continues the brand’s tradition of offering top-tier sealing solutions. What sets Fel-Pro apart, and is certainly evident here, is their focus on designing for imperfect sealing surfaces. This isn’t just a generic gasket; it’s engineered specifically for the repair environment, where surfaces aren’t always pristine. The foundation is their proprietary cork-rubber formulation, which provides excellent flexibility and resistance to oil and heat, contributing to a superior seal. When you open the box, you’ll often find every part for the repair included, which is a huge convenience. And knowing it’s real-world tested means you’re getting a component validated for actual vehicle performance.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– Adapts well to minor surface irregularities
– Durable material blend for extended lifespan
– Helps prevent recurring oil leaks
– Conveniently packaged as a complete set
– Reliable brand with a strong reputation

Cons:
– Installation still requires careful surface preparation for best results
– Ensuring the correct torque specs is vital for longevity

Best for: Anyone undertaking a valve cover gasket replacement who wants a proven solution that offers flexibility and robust sealing against common engine wear and tear.

User feedback summary: Many users report satisfaction with how well this gasket conforms and seals, often mentioning that it solved their leak issues permanently. The quality of the materials and the completeness of the kit are frequently praised.

FEL-PRO VS 50728 R Valve Cover Gasket Set

The FEL-PRO VS 50728 R Valve Cover Gasket Set stands out for its meticulous engineering, specifically aimed at solving real-world leakage problems. A key highlight is its design for imperfect sealing surfaces, ensuring a reliable fit even when your engine’s components aren’t factory-new. It leverages Fel-Pro’s proprietary cork-rubber formulation, which is incredibly effective at creating a conformable barrier that resists oil degradation and high temperatures, resulting in a superior seal. Often, you’ll find that every part for the repair is thoughtfully included, reducing your need for additional purchases. This commitment to quality is reinforced by the fact that their parts are real-world tested, giving you confidence in its on-road performance and durability.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– Excellent for worn or aged valve cover surfaces
– Resistant to oil, heat, and compression set
– Consistently provides a tight, leak-free seal
– Often includes all necessary accessories for a complete job
– Engineered to professional standards

Cons:
– May require specific installation procedures for certain engine types
– Checking part number for exact vehicle fitment is essential

Best for: Mechanics and dedicated DIYers seeking a top-tier valve cover gasket solution that offers long-term reliability and addresses the realities of engine wear.

User feedback summary: Customers frequently comment on the longevity and effectiveness of this gasket, with many reporting zero leaks even after extensive driving. The quality and comprehensive nature of the kit are often highlighted as major benefits.

FEL-PRO VS 50604 R Valve Cover Gasket Set

With the FEL-PRO VS 50604 R Valve Cover Gasket Set, you’re getting a product built on Fel-Pro’s solid reputation for quality and engineering. This set is particularly notable for being designed for imperfect sealing surfaces, which means it’s built to perform reliably even on older or higher-mileage engines. The use of their proprietary cork-rubber formulation is a significant advantage, providing the flexibility needed to create a superior seal by conforming to minor irregularities in the valve cover or cylinder head. Fel-Pro typically ensures that every part for the repair is included, which simplifies the replacement process considerably. You can also rest assured that these components are real-world tested, ensuring they meet rigorous performance standards under actual driving conditions.

• Designed for imperfect sealing surfaces
• Proprietary cork-rubber formulation
• Highly conformable for superior seal
• Includes every part needed for the repair (unless noted)
• Real-world tested for optimal performance

Pros:
– High adaptability to various surface conditions
– Excellent resistance to heat and engine fluids
– Delivers a durable and effective seal
– Conveniently includes all required gaskets and seals
– A trusted name in automotive sealing

Cons:
– Careful handling during installation is recommended to avoid damage
– Ensure compatibility with your vehicle’s specific engine

Best for: Those who need a robust and forgiving gasket set capable of sealing effectively on potentially less-than-ideal valve cover surfaces, with the backing of a reputable brand.

User feedback summary: Users praise this gasket for its ability to stop persistent leaks, noting the material quality and the comprehensive nature of the kit. Many feel confident in its long-term performance after installation.

YzusGomumu VS50830R Engine Valve Cover Gasket Set with…

The YzusGomumu VS50830R Engine Valve Cover Gasket Set offers a compelling alternative, especially for specific Subaru models. What immediately stands out is its higher quality manufacturing, which undergoes strict durability testing to prevent leaks and protect engine performance. This set adopts an advanced manufacturing process to ensure a good fit and effective sealing. It uses high-temperature and oil-corrosion resistant high-performance materials, ensuring stability even in challenging engine environments and prolonging its service life. Crucially, it boasts specific compatibility with a range of Subaru vehicles (2016-2017 Crosstrek 2.0L H4 GAS; 2011-2018 Forester 2.5L H4 GAS; 2012-2016 Impreza 2.0L H4 GAS; 2013-2019 Legacy 2.5L H4 GAS; 2013-2019 Outback 2.5L H4 GAS; 2013-2015 XV Crosstrek 2.0L H4 GAS) and cross-references multiple OE numbers, making fitment checks straightforward. Designed for precision, this gasket kit is essentially plug-and-play, simplifying the installation process without needing specialized equipment.

• Undergoes durability testing to ensure leak prevention and engine protection
• Advanced manufacturing process for good fit and sealing
• Made with high temperature and oil corrosion resistant materials for stability and long life
• Compatible with specific Subaru vehicles (check list) and OE numbers
• Designed for precision and easy, plug-and-play installation

Pros:
– Specifically engineered for common Subaru applications
– High-quality, durable materials resist extreme conditions
– Excellent fitment thanks to precise manufacturing
– Very easy to install, often without specialized tools
– Comprehensive kit with all required gaskets

Cons:
– Limited to specific vehicle applications; not a universal solution
– Brand might be less recognized than established names like Fel-Pro

Best for: Owners of compatible Subaru vehicles looking for a high-quality, application-specific valve cover gasket set that is easy to install and offers reliable long-term sealing.

User feedback summary: Users with compatible Subaru models frequently praise the perfect fit and the comprehensive nature of the kit. They report that the installation was straightforward, and the gasket effectively stopped their valve cover leaks, performing just like an OEM part.

Helpful Comparison Insights

When looking for the best gasket sealers for valve covers, you’ll notice a clear leader in terms of consistent quality and widespread application: Fel-Pro. Their range, exemplified by the VS 50761 R, VS 50735 R, VS 50517 R, VS 50454 R, VS 50728 R, and VS 50604 R sets, all share a core philosophy. The proprietary cork-rubber formulation is a huge advantage, making these gaskets incredibly conformable to imperfect sealing surfaces. This means even if your valve cover or cylinder head isn’t perfectly flat anymore, these gaskets have a better chance of creating a tight, lasting seal than more rigid options.

What’s great about these Fel-Pro sets is their reliability and engineering focus. They’re real-world tested and often come as complete kits, which is a massive convenience, ensuring you have every small part needed. While their individual part numbers denote specific vehicle applications (always double-check for your car!), their underlying quality and design principles remain consistent. You’re getting a dependable, well-engineered solution across the board with Fel-Pro.

On the other hand, the YzusGomumu VS50830R carves out its niche by being a highly application-specific solution, particularly strong for various Subaru models. Its strength lies in its precise fitment for those compatible vehicles and its use of high-temperature, oil-corrosion resistant materials. While Fel-Pro offers broader coverage and the versatility of cork-rubber for imperfect surfaces, the YzusGomumu set shines in its OEM-like quality and ease of installation for its target audience. If you have one of the listed Subaru vehicles, its plug-and-play design and tested durability make it a very attractive option.

Ultimately, if you’re looking for a versatile and highly forgiving gasket that can handle slight surface imperfections, the Fel-Pro options are an excellent bet. If you own a specific Subaru model and want a gasket designed specifically for that application with an emphasis on easy, precise installation and OEM-level performance, the YzusGomumu set is a standout choice. Both brands prioritize leak prevention, but they achieve it through slightly different, yet equally effective, approaches.

Our Final Verdict

After thoroughly reviewing these top contenders, it’s clear that the best gasket sealers for valve covers depend largely on your specific needs and vehicle.

For the vast majority of car owners and mechanics, especially those dealing with older engines or minor surface irregularities, any of the reviewed FEL-PRO Valve Cover Gasket Sets (like VS 50761 R, VS 50735 R, etc.) are consistently excellent choices. Their proprietary cork-rubber formulation and design for imperfect sealing surfaces make them incredibly forgiving and effective at preventing leaks long-term. They truly embody reliability and professional-grade engineering.

However, if you own one of the compatible Subaru models listed and value an OEM-spec, plug-and-play installation, the YzusGomumu VS50830R Engine Valve Cover Gasket Set stands out as a superb, precision-engineered option. Its specific application focus and high-quality materials offer tremendous value for that target market.

In short: For broad reliability and versatility on varied engine conditions, go with Fel-Pro. For specific Subaru applications demanding OEM-like fit and effortless installation, the YzusGomumu is your winner. Both will help you achieve that coveted, leak-free engine bay.

FAQ Section

Q1: Why do valve covers leak, and when should I replace my valve cover gasket?
A1: Valve covers leak primarily due to the gasket material deteriorating over time from heat cycles, oil exposure, and engine vibrations. This causes the gasket to harden, crack, or flatten, losing its ability to seal effectively. You should replace your valve cover gasket if you notice oil weeping from the valve cover, a burning oil smell, or visible oil pooling around the valve cover. Addressing these signs quickly with the best gasket sealers for valve covers is important for engine health.

Q2: Can I use RTV sealant alone for valve covers instead of a gasket?
A2: Generally, no. Valve covers are designed to use a specific gasket, which provides the primary seal and proper spacing. While RTV (Room Temperature Vulcanizing) sealant can be used in conjunction with a gasket, especially in corners or areas with tricky sealing surfaces, it’s rarely a suitable standalone solution. Relying solely on RTV can lead to improper clamping force, oil leaks, and potential damage. Always use a proper gasket set like the ones reviewed here.

Q3: What’s the difference between cork and rubber valve cover gaskets?
A3: Cork gaskets (often a cork-rubber blend, like Fel-Pro’s proprietary formulation) are excellent for their conformability. They can compress well and adapt to slightly imperfect or warped sealing surfaces, making them very forgiving. Rubber gaskets (e.g., silicone or synthetic rubber) offer great resistance to oil and heat and are very durable, but they require perfectly flat sealing surfaces for optimal performance. Many of the best gasket sealers for valve covers now use advanced cork-rubber composites for the best of both worlds.

Q4: How important is proper surface preparation when replacing a valve cover gasket?
A4: Proper surface preparation is absolutely critical! Before installing any new valve cover gasket, you must thoroughly clean both the valve cover and the cylinder head sealing surfaces. Remove all old gasket material, oil residue, and dirt. A clean, dry, and smooth surface ensures the new gasket can create an optimal, long-lasting seal. Skipping this step is a common reason for new gaskets to leak prematurely.

Q5: How do I install a valve cover gasket properly to ensure no leaks?
A5: Key steps include:
1. Thorough Cleaning: As mentioned, ensure all mating surfaces are spotless.
2. Inspect Valve Cover: Check for warpage or cracks.
3. Correct Gasket Placement: Position the new gasket carefully. Some designs might benefit from a thin bead of RTV in specific corners or at seam junctions, but follow manufacturer recommendations.
4. Proper Torque Sequence: Tighten the valve cover bolts in the specified pattern (usually from the center outwards) and to the correct torque specifications using a torque wrench. Over-tightening can damage the gasket or valve cover, leading to leaks.
5. Recheck: After a short drive, it’s good practice to recheck bolt torque.

Q6: Are all valve cover gasket sets universal, or do I need a specific one for my car?
A6: No, valve cover gasket sets are generally not universal. Each engine design has a specific valve cover shape and bolt pattern, requiring a matching gasket. Always check the part number and vehicle compatibility (year, make, model, engine size) to ensure you’re getting the correct gasket sealers for valve covers that will fit your specific vehicle. The products reviewed above, for example, are distinct part numbers for different applications.

Q7: How long do valve cover gaskets typically last?
A7: The lifespan of a valve cover gasket can vary widely, typically lasting anywhere from 50,000 to 100,000 miles or more, depending on the material quality, engine operating conditions, and maintenance history. High-quality materials, like those used in the Fel-Pro and YzusGomumu sets, are designed for extended durability. Regular oil changes and preventing engine overheating can also contribute to a longer gasket life.