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If you own a Chrysler 300, a failing valve cover gasket can cause oil seepage, smoking, foul odors, or decreased engine bay cleanliness. Choosing the right Chrysler 300 valve cover gasket matters because the correct material and fit affect sealing performance, longevity, and the ease of installation. This guide covers seven shortlisted valve cover gaskets selected for their sealing reliability and build quality. We evaluated options based on material, fitment accuracy, installation difficulty, and durability to help you find a gasket suited to your maintenance needs.
Looking for other parts? See all Chrysler 300 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | FEISOO Valve Cover Gasket Kit VS50805R Compatible with 3.6L V6 Chrysler 300 and Related Chrysler Models |  |
| Most Popular A crowd favorite that many people choose with confidence | MNJWS Valve Cover Gasket Set for 3.6L V6 Pentastar (fits Chrysler 300) |  |
| Best Quality Built to a higher standard if you want something more solid | KAX Valve Cover Gasket Set Compatible with Chrysler 300 and 3.6L Pentastar Engines |  |
| Best Budget The cheapest option that still gets the job done reliably | YzusGomumu Valve Cover and Intake Manifold Gasket Set for 3.6L Pentastar |  |
| Most Sold A high-volume bestseller chosen again and again | HIHIAV Valve Cover Gasket Set for Chrysler 300 3.6L (Replaces VS50805R / 5184596AE) |  |
| Best Value for Money The sweet spot between price and what you get | ZHXZLJC VS50805R Valve Cover and Intake Manifold Gasket Set |  |
| Best Overall The best all-around choice for most situations | Armker Valve Cover and Intake Manifold Gasket Kit for 3.6L V6 |  |
1. FEISOO Valve Cover Gasket Kit VS50805R Compatible with 3.6L V6 Chrysler 300 and Related Chrysler Models
| Manufacturer | FEISOO |
|---|---|
| Item model number | 5184331AC & VS50805R |
| Compatible engine | 3.6L V6 |
| Date First Available | May 10, 2024 |
This valve cover gasket kit supplies the rubber seals and related gaskets needed to stop oil seepage from the 3.6L V6 valve covers used in Chrysler 300 models. It is typically used during routine repairs when you see oil on the valve cover or under the vehicle, and it installs in the same locations as the factory pieces. The kit is made from a rubber compound the manufacturer says is formulated for high temperature and pressure resistance, which helps maintain a tight seal and reduce engine bay oil smell and mess. Included pieces cover valve cover and related seals so you can complete a DIY replacement without sourcing individual parts. Expect a secure fit on compatible Chrysler 300 engines when the mating surfaces are clean, though some installations can be tight and may require extra disassembly on certain model years. The kit does not include sealant, so plan to have the appropriate gasket sealant on hand for areas that require it. For reliability-focused owners this kit provides a practical, serviceable way to stop leaks and extend engine life when fitted correctly.
Best for: Reliability-focused owners who prioritize fixing oil leaks with a complete, factory-style gasket kit to restore long-term engine sealing and reduce maintenance hassles.
Less Ideal for: Buyers looking for a drop-in, no-disassembly repair or those who prefer a kit that includes sealant and all installation consumables.
- Made from high-stability rubber that resists heat and pressure for improved sealing durability
- Includes multiple gaskets and seals to replace all valve-cover-related sealing surfaces in one kit
- Compatible with 3.6L V6 Chrysler engine families used in Chrysler 300, providing direct-fit replacement
- Positive owner feedback reporting good fit and leak-free miles after installation
- Does not include gasket sealant, which some installations require for a proper seal
- Installation can be labor-intensive on certain model years due to surrounding components
Verdict A cost-effective, reliability-minded gasket kit that restores factory-style sealing for the 3.6L V6 Chrysler 300 but requires sealant and careful installation on some model years.
2. MNJWS Valve Cover Gasket Set for 3.6L V6 Pentastar (fits Chrysler 300)
| Brand | MNJWS |
|---|---|
| Compatible engine | 3.6L V6 Pentastar |
| Manufacturer part number | 80006051 |
| Replaces part numbers | 5184596AE, VS50805R |
This MNJWS valve cover gasket set replaces the factory valve cover seal on Chrysler 300 models equipped with the 3.6L V6 Pentastar engine. It is intended for do-it-yourself installation when you have oil seepage around the valve cover, burning oil smell, or low oil level due to a leaking cover. The kit is marketed as a direct-fit replacement for common Mopar part numbers and includes the gaskets needed to reseal the cover. Buyers report straightforward fit and long-term leak-free service when installed carefully with proper surface prep and RTV where specified. The practical benefit is restoring a clean engine bay and preventing oil consumption without removing major components. Limitations are that this is an aftermarket part rather than a factory Mopar unit and some installations may require silicone bonding or attention to torque sequence on the cover bolts to avoid future leaks. If a damaged valve cover or warped flange is present, replacing just the gasket may not fully resolve the issue.
Best for: Convenience-driven buyers who want a ready-to-install replacement to stop valve-cover oil leaks on their Chrysler 300 without sourcing multiple parts or visiting a dealer.
Less Ideal for: Owners who prefer only genuine factory Mopar parts or those whose engine has a damaged valve cover flange that requires part or machine work beyond a gasket replacement.
- Designed specifically for 3.6L Pentastar engines used in Chrysler 300, simplifying part selection.
- Sold as a complete gasket set to replace the valve cover seal in one service operation.
- Multiple customer reports of good fit and long-term leak-free performance.
- Direct-fit claim for common Mopar part numbers reduces compatibility uncertainty.
- Aftermarket unit rather than genuine factory part which may differ slightly in material or finish.
- Some installers recommend using RTV or adhesive during installation which adds a step compared with a sealed factory gasket.
- Will not correct problems caused by a warped or damaged valve cover flange; additional repairs may be needed.
Verdict A convenient, direct-fit aftermarket gasket set that fixes valve-cover oil leaks on Chrysler 300 3.6L V6 engines when the cover itself is in good condition.
3. KAX Valve Cover Gasket Set Compatible with Chrysler 300 and 3.6L Pentastar Engines
| Compatible Engines | 3.6L Pentastar (fitment includes Chrysler 300 3.6L) |
|---|---|
| Material Type | Silicone |
| Package Included | Valve cover gasket set and MS97204 intake manifold gaskets |
| OE Numbers | VS50657, VS50805R, 5184596AE, 5184595AE, 5184855AB |
This KAX valve cover gasket set is a direct replacement designed to fit Chrysler 300 models equipped with the 3.6L Pentastar V6. It replaces factory valve cover seals and includes an intake manifold gasket, so it covers the common sealing points when you service the valve covers. The kit is made from silicone RTV-style material, which is resistant to high temperature and pressure and should hold a reliable seal under normal driving and spirited use. Installation is straightforward for a competent DIYer or technician because the gaskets are molded to the correct shape and include the necessary spark plug tube seals and grommets. Buyers should note the kit is an aftermarket part so fit can vary slightly on complex cover contours; a careful test fit and proper torque sequence on the cover bolts are important to prevent leaks. The set is practical for restoring a leaky valve cover area and is a cost-effective option for performance-focused owners seeking durable sealing without replacing OEM covers.
Best for: Performance-oriented owners who prioritize reliable engine sealing during spirited driving and want a durable, cost-effective gasket kit for Chrysler 300 3.6L maintenance or repairs.
Less Ideal for: Those seeking a cosmetic factory-identical part or people who prefer dealer-sourced OEM parts and factory-specified packaging should consider alternatives.
- Fits Chrysler 300 3.6L Pentastar applications listed in the fitment, covering valve cover and spark plug tube seals
- Silicone RTV construction offers high temperature and pressure resistance for improved longevity
- Includes intake manifold gasket plus grommets and spark plug tube seals for a more complete sealing job
- Molded shape simplifies installation and reduces time compared with trimming universal gaskets
- Aftermarket fit can require extra care on curved cover sections to seat fully and avoid leaks
- Not a brand-new factory-cover replacement so finish and exact contour may differ from factory parts
Verdict A robust silicone gasket kit that gives Chrysler 300 3.6L owners a durable, all-in-one sealing solution, but expect minor fitment checks during installation.
4. YzusGomumu Valve Cover and Intake Manifold Gasket Set for 3.6L Pentastar
| Compatible Engines | 3.6L Pentastar V6 |
|---|---|
| Package Contents | 2 valve cover gaskets, 12 grommets, 6 lower intake gaskets, 6 upper plenum gaskets |
| Brand Name | YzusGomumu |
| Material Type | Plastic |
This gasket kit supplies the valve cover gaskets, intake manifold gaskets, and grommets needed when servicing the 3.6L Pentastar on a Chrysler 300. It is sold as a full set intended for a teardown or mid-life gasket refresh and includes multiple lower and upper intake gaskets plus valve cover seals and mounting grommets. For DIYers it simplifies a scheduled repair by grouping commonly replaced pieces in one package and reviewers report good fitment on 3.6L models. The materials are described as higher quality plastic and gasket compound to form a reliable seal, which helps prevent oil seepage and coolant cross-contamination that can trigger rough idle or warning lights. Limitations are that the kit may omit small OEM parts like certain PCV O-rings depending on vehicle year, so confirm part numbers before starting the job. For a budget replacement this set balances completeness and value but expect to verify and possibly source a single missing seal separately.
Best for: Budget-conscious owners looking to perform a DIY valve-cover and intake gasket service on a Chrysler 300 3.6L who prioritize value and having most replacement pieces in one kit.
Less Ideal for: Owners who want an exact factory-matching parts package including every minor O-ring or those seeking a dealer-sourced OEM kit should consider alternatives.
- Comprehensive kit includes valve cover gaskets, multiple intake manifold gaskets, and grommets for a single repair job
- Designed to fit Chrysler 3.6L Pentastar applications with reported good fit on Chrysler 300 owners
- Affordable option that groups needed components for DIY gasket replacement, saving parts sourcing time
- Positive user feedback on fit and quality from multiple purchasers
- May not include every small seal such as some PCV valve O-rings for certain model years
- Material description lists plastic for some components which may not match factory rubber in feel
Verdict A cost-effective, mostly complete gasket kit that fits the Chrysler 300 3.6L and is a practical choice for DIYers who want to replace multiple seals without buying parts separately.
5. HIHIAV Valve Cover Gasket Set for Chrysler 300 3.6L (Replaces VS50805R / 5184596AE)
| Brand | HIHIAV |
|---|---|
| Material | silica gel |
| Replaces Part # | VS50805R, 5184596AE |
| Compatible Volume | 3.6L |
This HIHIAV valve cover gasket set is a direct replacement for the Chrysler 300 3.6L engine that replaces part numbers VS50805R and 5184596AE. It is supplied as a single gasket set made from silica gel designed to compress into the valve cover rail and the spark plug tube openings to stop oil seepage. Typical use is during maintenance or when addressing oil leaks from the valve cover area; installation requires removing the valve cover, cleaning the sealing surfaces, and fitting the supplied seals and tubes before re-torquing the cover. Buyers note the kit arrives boxed and includes the main gasket and several seals, and that the fit is generally good on recommended model years. Practical benefits are straightforward: it lets you fix oil leaks without replacing the entire valve cover and is affordable compared with dealer parts. Limitations include occasional tight seals that can be hard to seat and some reports of slightly loose gaskets needing careful alignment during install, so patience and basic mechanical skill are recommended.
Best for: A risk-averse mainstream buyer who wants a straightforward, budget-friendly factory-replacement style gasket to stop valve-cover oil leaks on a Chrysler 300 and prefers a solution with many positive owner reports.
Less Ideal for: Do not choose this if you need a premium branded or OEM-sourced part with formal manufacturer warranty support or if you expect plug-and-play perfection without any minor fit adjustments.
- Designed to replace factory part numbers VS50805R and 5184596AE for Chrysler 3.6L engines
- Silica gel seals intended to compress for a leak-resistant fit
- Boxed packaging to reduce risk of loss or damage during delivery
- Well reviewed by owners for fit and function on the listed vehicle applications
- Some seals can be tight and difficult to seat without warming or lubrication
- A few users reported the gasket required careful alignment or reuse of an old seal for perfect fit
Verdict A practical, well-reviewed replacement gasket set for Chrysler 300 3.6L owners who want an affordable repair option but should plan for careful installation.
6. ZHXZLJC VS50805R Valve Cover and Intake Manifold Gasket Set
| Reference numbers | VS50805R, 5184596AE, MS97204 |
|---|---|
| Compatible engines | 3.6L Pentastar V6 (also lists 3.2L for Cherokee) |
This gasket kit supplies the valve cover and intake manifold seals needed when servicing a Chrysler 3.6L Pentastar V6. It includes molded rubber gaskets and grommets engineered for oil and high-temperature resistance, so it is used during routine repairs or when replacing leaking valve covers or the intake manifold. Notable features are an anti-over-tightening grommet design that helps avoid damage during installation and a precision-molded profile intended to match factory sealing surfaces. In practice the set simplifies a DIY swap because it bundles both valve cover and intake manifold pieces you will need, and customer feedback indicates secure, leak-free performance when fitted correctly. Limitations are that sensor seals may not always match original fit exactly and some pieces can arrive creased from packaging, which may require time to relax before installation. Expect a practical, budget-friendly replacement that performs well for standard maintenance but verify fitment to your Chrysler 300 3.6L before starting work.
Best for: Practical optimizers who prioritize getting a full, reliable gasket kit at a reasonable cost for routine maintenance and repairs on a Chrysler 300 3.6L, saving time by replacing all related seals in one job.
Less Ideal for: Buyers seeking exact-matching factory-installed sensor seals or those who need brand-new parts for a concours restoration should consider OEM factory-quality alternatives.
- Complete kit includes valve cover and intake manifold gaskets plus grommets for a single repair job.
- Molded rubber construction rated for oil and high temperatures to resist leaks and degradation.
- Anti-over-tightening grommets reduce risk of installation damage to the gasket or fasteners.
- Many users report proper fit and leak-free operation on compatible engines.
- Some sensor/seal pieces can be slightly oversized compared with factory parts.
- Gaskets may arrive folded and can retain creases that require time to flatten before installation.
Verdict A budget-friendly, full gasket kit that reliably seals the Chrysler 300 3.6L when fitment is confirmed, but check sensor seal fit and allow folded gaskets to relax before installation.
7. Armker Valve Cover and Intake Manifold Gasket Kit for 3.6L V6
| Engine compatibility | 3.6L V6 |
|---|---|
| Fitment (vehicle) | Chrysler 300 (3.6L models) |
| Includes | Valve cover gaskets, spark plug seals, intake/exhaust seals |
| Manufacturer | Armker |
This Armker gasket kit is a direct replacement set designed for the 3.6L V6 used in Chrysler 300 applications and packages valve cover gaskets, spark plug tube seals, and intake/exhaust seals to stop common oil leaks. Typical use is a valve cover and intake manifold reseal during repair of oil seepage or misfires caused by leaking spark plug seals. The kit uses molded rubber gaskets intended for heat resistance and durability, and reviewers report good fit and reliable sealing when installed correctly. It includes the range of seals needed for a complete reseal so you do not need to source individual parts, and the manufacturer states factory-spec fit. Expect a moderately involved installation that may require battery tray removal and small tools to access rear PCV fittings on Chrysler 300 3.6L engines. The main limitations are that installation can be time consuming for a home mechanic and a few small sealing surfaces may still need RTV at the head/timing cover junction as noted by users. For owners wanting a full gasket refresh without dealer pricing, this kit covers the typical leak points on the Chrysler 300 3.6L.
Best for: Balanced owners who want a complete, factory-replacement style gasket set to fix oil leaks on their Chrysler 300 3.6L without paying dealer rates and who are comfortable doing a multi-hour repair or arranging shop time.
Less Ideal for: Drivers seeking a quick plug-and-play fix from a local parts counter or those unwilling to tackle a moderate DIY job should consider professional service or alternative solutions.
- Complete kit includes valve cover gaskets, spark plug seals, and intake/exhaust seals for a full reseal
- Molded rubber construction designed for heat resistance and long-term sealing
- Reported to fit Chrysler 300 3.6L applications accurately, resolving common oil leaks
- Eliminates the need to buy multiple individual parts for the reseal job
- Installation can be labor intensive and requires access behind the valve cover and small tools
- May still require small amounts of RTV at specific head/timing cover junctions not covered by the kit
Verdict A full, factory-style gasket kit that reliably addresses oil leaks on Chrysler 300 3.6L engines for owners who want a complete repair without dealer pricing.
Choosing the Right Chrysler 300 Valve Cover Gasket: Key Factors to Consider
Gasket Material and Construction
Gasket material determines how well the seal resists heat, oil, and aging. Rubberized compounds, silicone, and cork-rubber blends each behave differently when exposed to engine oil and high temperatures, so choose a material rated for under-hood conditions.
Construction quality matters as well. Reinforced or molded gaskets maintain shape and compressive properties better than thin or poorly finished parts. A gasket that resists hardening and cracking will maintain a consistent seal and reduce the chance of repeat leaks.
Fitment Accuracy
Proper fitment to the Chrysler 300 valve cover and cylinder head flange is essential to an effective seal. A gasket must match bolt hole locations, sealing channel geometry, and mating surface profiles to avoid uneven compression and leaks.
Poorly fitting gaskets can require extra sealant or lead to oil seepage despite being new. Verify that the gasket is designed specifically for the vehicle model and engine variant to minimize installation hassles and ensure reliable performance.
Resistance to Oil and Heat
Valve cover gaskets are continuously exposed to hot oil, vapors, and fluctuating temperatures. Materials that swell or degrade when soaked in oil will lose sealing force over time. Look for gaskets formulated to resist oil absorption and to remain stable at engine operating temperatures.
High thermal stability also reduces the risk of shrinkage or hardening after repeated heat cycles. That stability helps preserve sealing contact and extends service intervals between replacements.
Installation and Serviceability
How easy the gasket is to install affects time and risk of installation errors. Features like a pre-formed shape, clear orientation cues, and alignment aids reduce the chance of misplacement. Consider whether additional sealant is recommended and where it should or should not be applied.
Ease of access to bolt heads, required torque specifications, and whether other components must be removed influence the overall labor. Choose a gasket that matches your comfort level with DIY work or with typical shop procedures to avoid surprises.
Sealing Design and Compression Behavior
The gasket's sealing profile and how it compresses under bolt torque determine how evenly pressure is applied across the sealing surface. Some gaskets use raised ribs or integrated beads to concentrate sealing force; others rely on uniform cross-sections for even contact.
Understanding expected compression behavior helps anticipate how the gasket will perform after final torque and after thermal cycling. A design that maintains contact without extruding or flattening excessively will provide a longer-lasting seal.
Durability and Maintenance Interval
Durability affects how often you need to replace the gasket and the risk of intermediate failures. Consider manufacturer-stated life expectancy and whether materials are known to resist common degradation modes such as cracking, shrinkage, or oil-induced swelling.
Also plan for routine inspections after installation, particularly if the engine has high mileage or past oil leaks. Choosing a longer-lasting gasket reduces downtime and repeat maintenance needs.
FAQ
What are common symptoms of a failing valve cover gasket on a Chrysler 300?
Common signs often include visible oil seepage around the valve cover, oil pooling on the engine, burning oil smell, and occasional smoke from oil hitting hot exhaust components. You may also notice lower oil levels between changes or oil contamination on ignition components. These symptoms usually indicate the gasket is no longer sealing effectively.
Can I replace the valve cover gasket myself?
Many owners can perform a valve cover gasket replacement with basic tools and some mechanical familiarity. The job typically involves removing ignition components and the valve cover, cleaning mating surfaces, and installing the new gasket with correct torque on fasteners. It often depends on access, required tools, and comfort with following torque specifications and sealant instructions.
Do I need to use sealant with a new valve cover gasket?
Whether to use sealant depends on the gasket type and manufacturer guidance. Some molded or silicone gaskets are designed to seal without additional compounds, while others recommend a small amount of sealant at corners or oil return passages. Follow the installation instructions for the specific gasket and avoid overapplication, which can lead to blockages or extrusion.
How can I tell if the valve cover gasket is leaking versus another engine oil leak?
Inspect the engine top and surrounding areas for fresh oil trails. A valve cover gasket leak typically shows oil around the perimeter of the valve cover and on components directly beneath it, such as ignition coils or spark plug wells. Other leaks may originate lower on the engine or from seals and gaskets in different locations. Cleaning the area and observing after a short drive can help locate the source.
How important are torque specs when installing a valve cover gasket?
Torque specs are important to ensure even clamping force and to avoid over-tightening, which can deform the valve cover or crush the gasket. Using the correct sequence and specified torque values helps achieve a reliable seal without causing damage. If you do not have a torque wrench, consider acquiring one for accurate installation.
How long does a replacement valve cover gasket typically last?
Lifespan varies with material quality, engine heat cycles, and operating conditions but many modern gaskets last several years under normal driving. Exposure to extreme heat, contaminants, or repeated oil exposure can shorten service life. Regular visual checks during maintenance help catch early signs of deterioration.
How We Chose the Best Chrysler 300 Valve Cover Gasket
We focused on factors that directly affect long-term sealing performance and practical installation for Chrysler 300 owners. Key evaluation criteria included gasket material and construction, compatibility with factory valve cover geometry, resistance to oil and heat, and the reliability of sealing surfaces under typical operating temperatures. We also considered how straightforward the gasket is to install, including clarity of fitment and any necessary torque specifications, plus durability data such as expected service life under normal driving. We excluded products that lacked clear specifications for Chrysler 300 fitment, those without documented material composition, and options with inconsistent sealing designs. Our shortlist favors gaskets that combine durable materials with accurate fitment and reliable sealing behavior for typical maintenance and repairs.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize fitment accuracy, material resistance to oil and heat, and clear installation guidance when choosing a Chrysler 300 valve cover gasket. Those factors most directly influence how long the seal will last and how straightforward replacement will be. Expect tradeoffs between ease of installation and long-term durability. Focus on a gasket that matches your mechanical comfort level and offers proven sealing characteristics to minimize repeat maintenance.
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