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If you own an Infiniti G37, a failing valve cover gasket can cause visible oil leaks, burning smells, and messy engine bays. Choosing the right gasket matters because a proper seal keeps oil where it belongs, protects ignition components, and reduces the chance of engine damage from oil contamination. This guide presents seven shortlisted valve cover gasket options chosen for their sealing performance and fitment accuracy. We evaluated each on sealing reliability, material quality, and compatibility with OEM torque requirements to help you find a durable replacement. Read on to see which features to prioritize and what to expect during installation.
Looking for other parts? See all Infiniti G37 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Fel-Pro VS 50599 R Valve Cover Gasket Set |  |
| Most Popular A crowd favorite that many people choose with confidence | MITZONE Valve Cover Set with Gaskets, Bolts, Oil Cap, PCV Valve for Nissan/Infiniti VQ35DE 3.5L |  |
| Best Quality Built to a higher standard if you want something more solid | Fel-Pro Engine Valve Cover Gasket Set 1628 (Molded Silicone, Steel Core) |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Valve Cover Gasket Set for Nissan/Infiniti VQ35 3.5L |  |
| Most Sold A high-volume bestseller chosen again and again | Fel-Pro VS 50592 R Valve Cover Gasket Set |  |
| Best Value for Money The sweet spot between price and what you get | Fel-Pro VS 50696 R Valve Cover Gasket Set |  |
| Best Overall The best all-around choice for most situations | MITZONE Valve Cover Kit with PCV, Oil Filler Cap and Gaskets for Nissan 2.5L (Replacement) |  |
1. Fel-Pro VS 50599 R Valve Cover Gasket Set
| Brand | Fel-Pro |
|---|---|
| Material | Rubber |
| Manufacturer Part Number | VS50599R |
This Fel-Pro valve cover gasket set is designed to replace worn or leaking valve cover seals during engine service. It includes molded rubber gaskets and associated seals so you can remove the covers, seat the new gaskets, and reassemble without trimming or extra sealant. The cork-rubber formulation and highly conformable profile let the gaskets accommodate imperfect sealing surfaces common on older engines, which helps stop oil seepage and keeps the valve train area cleaner. Real-world feedback shows straightforward installation and long-lasting performance across temperature swings. Limitations are typical for any replacement gasket set: correct bolt torque and clean mating surfaces are still required for a reliable seal, and compatibility must match the vehicle application. For reliability-focused buyers this kit delivers a factory-quality replacement that reduces the chance of a repeat leak when installed properly.
Best for: Reliability-focused DIYers and technicians who prioritize a long-term, factory-quality replacement when repairing persistent valve cover leaks on their Infiniti G37.
Less Ideal for: If you need a universal or one-size-fits-all gasket for multiple vehicle types or quick temporary fixes, this vehicle-specific repair kit is not the right choice.
- Includes complete gasket set with seals so no additional parts are typically required for the repair
- Cork-rubber/silicone-style formulation is conformable to imperfect sealing surfaces for improved leak resistance
- Designed and tested for on-vehicle performance to provide durable, road-ready sealing
- Requires proper surface preparation and correct bolt torque to achieve the claimed seal
- Fitment must be confirmed for the exact Infiniti G37 year and engine to ensure compatibility
Verdict A dependable, factory-quality valve cover gasket set aimed at fixing persistent leaks when fitted and installed correctly on the Infiniti G37.
2. MITZONE Valve Cover Set with Gaskets, Bolts, Oil Cap, PCV Valve for Nissan/Infiniti VQ35DE 3.5L
| Compatible Engine | VQ35DE 3.5L |
|---|---|
| Fitment Years | 2003-2007/2003-2008 models listed |
| Includes | Covers, gaskets, bolts, oil cap, spark plug tube seals, PCV valve |
This MITZONE valve cover set is a ready-to-install replacement package for VQ35DE 3.5L engines, intended as a direct-fit service part for Infiniti G37 (VQ35DE) owners. The kit ships with both driver and passenger covers, preinstalled gaskets and tube seals, a PCV valve, bolts and an oil filler cap so you can remove leaking covers and reinstall clean units without sourcing extra parts. Preinstalled seals simplify installation and reduce the chance of lost gaskets during assembly. Buyers report generally good fit and sealing that stops common oil leaks when installed carefully. There are mixed quality reports: some users note paint overspray and interior metal shavings that need cleaning before installation, and a few experienced installers found bolt threads or casting quality inconsistent. The supplied fasteners may be lower quality than factory hardware so many installers reuse OEM bolts. For a convenience-minded owner replacing leaky covers on a G37, this kit bundles almost everything needed, but expect to inspect and prep parts before final torque and consider swapping bolts for greater reliability.
Best for: Convenience-driven buyers who want a one-package replacement to fix valve cover leaks on an Infiniti G37 quickly without sourcing multiple parts or components.
Less Ideal for: If you prioritize factory-level finish or plan heavy performance use, consider higher-end aftermarket or factory-quality covers and replacement fasteners instead.
- Complete kit includes both valve covers, gaskets, spark plug tube seals, PCV valve, bolts and oil cap for one installation
- Gaskets and tube seals come preinstalled, which speeds up installation and reduces handling errors
- Designed to fit VQ35DE 3.5L engines used in Infiniti G37 so fitment is straightforward
- Many users report the set effectively stops oil leaks when installed correctly
- Variable manufacturing quality reported, with some units showing internal overspray or metal debris that require cleaning
- Paint finish can be thin and susceptible to scratches during installation
- Supplied bolts and threaded holes have occasional fit or strength issues compared with factory hardware
Verdict A convenient, all-in-one valve cover replacement for the G37 that saves sourcing time but requires careful inspection and possibly swapping hardware for long-term reliability.
3. Fel-Pro Engine Valve Cover Gasket Set 1628 (Molded Silicone, Steel Core)
| Material | Silicone |
|---|---|
| Includes | Solid steel core with stainless compression limiters |
| Item model number | 1628 |
| Compatibility note | Designed for small block V8 applications listed by manufacturer |
The Fel-Pro 1628 valve cover gasket set is a molded silicone rubber gasket with a solid steel core and stainless compression limiters intended to stop oil leaks and hold up under high-performance use. It is typically used when replacing worn cork or thin rubber gaskets on an engine’s valve covers to restore a reliable seal and reduce oil seepage. The silicone formulation is pliable for easier installation and can accommodate imperfect sealing surfaces, while the internal steel core adds rigidity so the gasket keeps its shape during repeated cover removal. For a performance-oriented build the set offers longevity and resistance to heat and oil, and many users report a reusable fit that ends persistent seepage. Expect a higher-cost option compared with basic replacement gaskets and in some installations you may need longer valve cover bolts if clearance changes after fitting the thicker silicone gasket. Installation still requires correct torqueing and a clean sealing surface to perform as advertised.
Best for: Performance-focused owners who prioritize durable, race-capable sealing and want a long-lasting gasket that stands up to repeated cover removal and higher operating temperatures.
Less Ideal for: Budget-focused DIYers looking for the cheapest short-term fix or those who prefer one-time disposable gaskets for low-use street cars.
- Molded silicone material conforms to imperfect surfaces for a strong seal
- Solid steel core provides shape and durability for repeated cover removal
- Integrated stainless compression limiters improve long-term sealing under heat and vibration
- Reported reusable performance reduces need for frequent replacement
- Higher price than basic rubber or cork gasket sets
- May require longer valve cover bolts on some engines due to increased gasket thickness
Verdict If you need a durable, performance-grade valve cover gasket that stops stubborn leaks and tolerates repeated servicing, the Fel-Pro 1628 is a top-quality choice; skip it if you need a low-cost, temporary fix.
4. A-Premium Valve Cover Gasket Set for Nissan/Infiniti VQ35 3.5L
| Product Type | Valve Cover Gasket |
|---|---|
| Material | NBR/ACM Rubber |
| Operating Temperature | -20°C – 150°C |
| Part Details | 2x Molded Rubber Valve Cover Gaskets |
This A-Premium valve cover gasket set supplies two molded rubber gaskets intended to stop oil leaks on VQ35 3.5L engines. It is typically used during routine valve cover service or when visible oil seepage appears around the cover flange. The kit is made from NBR/ACM rubber and the listing notes oil resistance and lab-tested heat performance up to typical engine temperatures. For a budget repair it offers a precise OEM-style fit and is straightforward to install where access allows, sealing uneven surfaces better than brittle, aged gaskets. The practical benefits are low cost, decent material resilience to common engine oils, and compatibility with VQ35 engines so you can address leaks without replacing valve covers. Limitations are that it is a basic rubber replacement rather than a premium multi-piece kit with extra seals or integrated spark plug tube seals, and long-term durability will depend on proper installation and surface condition of the valve cover and mating surface.
Best for: Budget-conscious owners seeking an affordable, factory-style replacement to stop valve cover leaks on a VQ35 3.5L Infiniti who prioritize cost-effective repairs over premium parts.
Less Ideal for: Those rebuilding the top end, replacing damaged valve covers, or looking for a full multi-component gasket kit with extra seals should consider a more comprehensive or OEM-level option.
- Low-cost replacement that addresses valve cover oil leaks on VQ35 3.5L engines
- Molded NBR/ACM rubber construction offers oil resistance and heat-tested performance
- Manufactured to match original-style dimensions for a close fit to the valve cover sealing surface
- Simple two-piece design keeps installation straightforward for routine gasket replacement
- Does not include additional seals or spark plug tube grommets that some full-service kits provide
- Long-term lifespan depends on valve cover condition and installation technique rather than upgraded materials
Verdict A cost-effective, molded rubber gasket set that provides a practical, budget repair for oil leaks on VQ35 3.5L Infiniti engines but lacks extra seals found in premium kits.
5. Fel-Pro VS 50592 R Valve Cover Gasket Set
| Brand | Fel-Pro |
|---|---|
| Material | Rubber |
| Model | VS 50592 R |
| Manufacturer Part Number | VS50592R |
This Fel-Pro valve cover gasket set supplies the seals and related pieces needed when replacing valve cover gaskets on compatible engines. It is typically used during valve cover removal to stop oil leaks around the cover and spark plug tubes, and the kit includes spark plug tube seals and metal-covered washers so you do not have to track down separate parts. The cork-rubber formulation and machined exterior are intended to conform to imperfect sealing surfaces, which makes installation easier and improves sealing without heavy modification. Real-world feedback from technicians and DIYers reports accurate fit, straightforward installation, and long-lasting performance when installed and torqued correctly. Limitations are that the listing targets certain Toyota and Lexus engines and compatibility should be confirmed for other vehicles, and the kit does not replace other engine gaskets or address problems caused by warped covers or damaged mating surfaces. Expect to follow standard prep steps such as cleaning mating surfaces and using small beads of high-temp sealant where the factory recommends it.
Best for: Risk-averse mainstream buyers who prioritize a trusted, widely used replacement part and want a complete gasket kit that reduces the chance of ordering missing components.
Less Ideal for: Shoppers who need a gasket set specifically confirmed for Infiniti G37 fitment or those repairing warped mating surfaces should look at vehicle-specific options or additional repair parts.
- Complete kit includes valve cover gaskets, spark plug tube seals, and metal-covered washers so installers rarely need extra parts.
- Cork-rubber formulation is highly conformable to accommodate imperfect sealing surfaces for a reliable seal.
- Machined exterior and vehicle-tested design aimed at professional-level durability and fit.
- Well-documented fitment history and many user reports of exact, leak-free fit on applicable engines.
- Compatibility is provided for specific Toyota and Lexus engines so fit for an Infiniti G37 is not guaranteed.
- Does not address issues caused by warped valve covers or damaged mating surfaces which may require additional repair.
- Some included small parts may not be needed for every application, creating minor excess components.
Verdict A reliable, full valve cover gasket kit from Fel-Pro that simplifies replacement jobs for supported engines but requires confirmation before assuming fitment for an Infiniti G37.
6. Fel-Pro VS 50696 R Valve Cover Gasket Set
| Brand | Fel-Pro |
|---|---|
| Material | Rubber |
| Manufacturer Part Number | VS50696R |
| Unit Count | 1.0 Count |
This Fel-Pro valve cover gasket set supplies the full set of gaskets needed when replacing a leaking valve cover seal on an Infiniti G37. The kit uses a conformable cork-rubber style formulation intended to seat against imperfect sealing surfaces, and Fel-Pro includes the smaller gaskets and seals commonly disturbed during valve cover removal so you do not have to buy extras. In practice this is a hands-on repair part: install it when you remove the valve cover for maintenance or leak repair, clean the sealing surfaces first, and follow torque specs to avoid distortion. The practical benefits are straightforward: good fitment reported by owners, a thick, conformable gasket that seals without additional gasket maker in most cases, and parts tested for real-world durability. Limitations are that the gasket can arrive folded in packaging which may require brief flattening, and as a vehicle-specific replacement it must match the G37 valve cover variant exactly before installation.
Best for: Practical optimizers who want a dependable, full gasket kit that minimizes follow-up purchases and focuses on value during routine G37 maintenance and leak repairs.
Less Ideal for: Buyers seeking a universal or one-size-fits-all gasket solution or those who prefer custom performance gaskets for modified engines should look elsewhere.
- Complete kit includes all necessary valve cover gaskets and seals for a full replacement.
- Conformable cork-rubber formulation helps seal imperfect or mildly warped sealing surfaces.
- Widely reported to fit accurately on vehicle applications, reducing fitment troubleshooting.
- Durable, vehicle-tested design intended for long service life without additional sealant.
- Packaging may arrive folded which can leave temporary creases that need flattening before installation.
- Not a universal part so you must verify exact fit for the Infiniti G37 engine variant.
Verdict A complete, vehicle-tested valve cover gasket set that balances fit, durability, and value for Infiniti G37 maintenance.
7. MITZONE Valve Cover Kit with PCV, Oil Filler Cap and Gaskets for Nissan 2.5L (Replacement)
| Manufacturer Part Number | 004-003 |
|---|---|
| Manufacturer | mizone |
| Position | Front |
| OEM Part Number | 132643Z001, 13264 3Z001, 264-982 |
This kit supplies a full valve cover assembly intended as a factory-style replacement for the 2.5L QR25DE engine, bundled with a valve cover gasket, spark plug tube seals, new bolts, a PCV assembly and an oil filler cap. It is used when the existing valve cover or integrated PCV is leaking oil into plug wells or allowing oil consumption and misfires. Notable features include a preinstalled PCV valve, polished metal cover and a complete hardware kit so you can replace the entire top cover in one job. In practice this reduces oil leaks, cleans up oil-fouled coils and plug wells, and can restore normal sealing without buying separate parts. Installation can be moderately involved on affected vehicles and may require supporting the engine or removing motor mounts depending on model layout. The kit is a cost-effective alternative to dealer parts but may need RTV on the mating surface and careful torqueing of bolts to ensure a long-lasting seal.
Best for: A balanced all-round buyer who wants a single, complete replacement kit to repair oil leaks and restore engine top-end sealing without mixing parts from multiple suppliers.
Less Ideal for: Buyers seeking a plug-and-play swap for any vehicle other than the specified 2.5L QR25DE application or those who prefer OEM dealer parts and support should consider alternatives.
- Complete kit includes valve cover, gasket, spark plug tube seals, PCV valve, oil filler cap and bolts for one-stop replacement
- Polished metal cover offers a more durable, heat-stable alternative to stock plastic covers
- Preinstalled PCV and included hardware simplify the job and reduce parts sourcing
- Many buyers report reliable fit and good sealing that stops oil in plug wells
- Installation can be labor intensive on some engines and may require engine support or motor mount removal
- May require supplemental sealant (RTV) at the head mating surface for best leak prevention
Verdict A full, budget-friendly valve cover replacement kit that fixes oil-leak and PCV issues when installed carefully, though it can require extra time and sealant for a long-lasting seal.
Choosing the Right Infiniti G37 Valve Cover Gasket: Key Factors to Consider
Material and Durability
The gasket material determines how well it resists oil, heat, and age-related cracking. High-quality materials maintain flexibility and compressive properties across temperature cycles, which keeps the seal tight and reduces the chance of leaks.
A durable compound also stands up to oil additives and solvent exposure that can degrade inferior materials. When a gasket remains supple, it conforms to surface irregularities and maintains a consistent seal even after repeated thermal expansion and contraction.
Fitment and Compatibility
Accurate fitment is essential for a clean installation and reliable sealing. A gasket that matches the Infiniti G37 bolt pattern, sealing ridges, and PCV or oil-fill openings reduces the need for modification and lowers leak risk.
Confirming fitment also saves time during installation and helps ensure that bolts preload the gasket evenly. Poorly matched parts can leave gaps or over-compressed areas that lead to oil seepage or premature failure.
Sealing Design and Profile
Gasket cross-section and sealing features affect how pressure is distributed along the mating surfaces. Raised beads, multi-layer construction, or reinforced lips can improve initial sealing and long-term retention of compression.
A well-designed profile compensates for minor surface imperfections and helps maintain a continuous seal under vibration and thermal cycling. The right design reduces the chance of intermittent leaks that are hard to diagnose.
Included Hardware and Accessories
Some gasket kits include replacement grommets, seals, or bolt washers that are often necessary when reusing old hardware. Having these items included simplifies installation and can prevent common failure points caused by degraded ancillary components.
Replacing worn grommets and seals at the same time ensures the entire sealing system is refreshed, increasing the likelihood of a successful, long-lasting repair.
Ease of Installation
Think about how the gasket handles during install and how straightforward the fitment is. Softer, more pliable materials are generally easier to position correctly, while rigid profiles may require more care to avoid misalignment.
Also consider whether the gasket requires additional sealants or RTV in specific areas. Clear installation compatibility with factory torque specs and accessible mounting points makes the job faster and reduces the risk of overtightening or underloading bolts.
Long-Term Performance and Maintenance
Assess how the gasket will perform across normal driving cycles and routine maintenance events. Durable gaskets should resist shrinkage and maintain sealing abilities over many heat cycles and oil changes.
Consider whether the design allows for occasional inspections without full disassembly and whether replacement intervals align with typical maintenance schedules. A gasket that requires minimal follow-up after installation reduces downstream labor and inconvenience.
FAQ
What are common symptoms of a failing valve cover gasket on an Infiniti G37?
Common signs include visible oil seeping around the valve cover, oil on spark plug wells, a burning oil smell when the engine is hot, and occasionally blue smoke from the exhaust if oil reaches hot components. You may also notice lower oil levels between changes. These symptoms often indicate the gasket is no longer providing a full seal and should be inspected.
Can I replace the valve cover gasket myself on an Infiniti G37?
Many owners perform this repair with basic hand tools and a torque wrench. The job usually involves removing components that obstruct the cover, cleaning the mating surfaces, and following proper torque sequences. It often depends on your comfort with engine work and access to service information about bolt torque specs and sequence.
Do I need to replace other parts when changing the valve cover gasket?
It is often wise to replace related seals and grommets that show wear, since these components are common failure points. If the kit does not include replacement hardware, consider swapping degraded grommets, PCV grommets, or washer seals to ensure a complete and reliable seal. Neglecting these can lead to future leaks even with a new gasket.
What causes a valve cover gasket to start leaking oil?
Heat cycling, oil contamination, and age-related hardening are common causes of gasket failure. Over time, materials can become brittle or compressed, losing their ability to conform to mating surfaces. Engine vibration and improper bolt torque can also create uneven sealing pressure that promotes seepage.
Should I use sealant when installing a valve cover gasket?
Some designs require a small amount of sealant at specific corners or mating points, while others are intended to seal without any adhesive. Follow the manufacturer's guidance for the gasket type you are using and apply sealant sparingly only where indicated. Excessive sealant can block passages or prevent proper seating.
How We Chose the Best Infiniti G37 Valve Cover Gasket
Our selection process focused on components that offer dependable sealing and straightforward installation for the Infiniti G37. We prioritized gaskets made from durable materials that resist oil, heat, and age-related hardening. Fitment accuracy was a key filter, favoring parts designed to match factory bolt patterns and accommodate PCV ports and mounting surfaces. We evaluated sealing performance based on material composition and design features that maintain compression over time. Ease of installation also mattered, including gasket pliability and whether additional seals or grommets are required. Finally, we considered compatibility with recommended torque specifications and common maintenance procedures. We excluded products that lacked clear vehicle-specific fitment information, gaskets made from low-density or non-heat-resistant compounds, and parts without documented sealing design features. The resulting list emphasizes longevity, correct fit, and installer-friendly properties rather than cost alone.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a valve cover gasket for an Infiniti G37, prioritize materials that resist heat and oil, accurate fitment to the factory mating surfaces, and a sealing profile that maintains compression over time. Include replacement grommets or seals when available and follow correct torque sequences during installation. Balancing durability, ease of installation, and the need to refresh ancillary hardware will lead to the most reliable repair and reduce the chance of repeat leaks.
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