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If you drive a Mercedes-Benz ML-Class and suspect oil seeping around the valve cover, choosing the right valve cover gasket matters for engine cleanliness and long-term reliability. The right gasket restores a proper seal, reduces oil leaks onto ignition components, and helps maintain correct crankcase ventilation.This guide presents seven shortlisted valve cover gaskets selected for fitment and sealing performance. We explain the key criteria used to evaluate these options and what to watch for when planning a replacement. Read on to compare the core factors and prepare for the repair or service ahead.
Looking for other parts? See all Mercedes-Benz ML-Class parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | JUWEVAZU Valve Cover Gasket Set VS 50842 R for Mercedes-Benz 1998-2011 |  |
| Best Quality Built to a higher standard if you want something more solid | MITZONE Aluminum Valve Cover with Gasket for Mercedes-Benz 3.2L/3.7L Engines (Left) |  |
| Best Value The sweet spot between price and what you get | Mercedes-Benz Valve Cover Gasket, Part 112 016 02 21 |  |
| Best Budget The cheapest option that still gets the job done reliably | MAXWIN Valve Cover Gasket Set for Mercedes-Benz 3.2L and 2.6L Engines |  |
| Highest Rated A top-rated pick with lots of positive feedback | YunStal Left and Right Engine Valve Cover Gasket Set for Mercedes-Benz (fits listed models) |  |
| Most Popular A crowd favorite that many people choose with confidence | ApplianPar Crankcase Breather Hose and Valve Cover Gasket Set for Mercedes-Benz M112 Engines |  |
| Best Seller A high-volume bestseller chosen again and again | NLQR Valve Cover Gasket and Crankcase Breather Hose Kit for Mercedes-Benz M112 3.2L V6 |  |
1. JUWEVAZU Valve Cover Gasket Set VS 50842 R for Mercedes-Benz 1998-2011
| Brand | JUWEVAZU |
|---|---|
| Manufacturer | XINSYuan |
| Part Number | VS 50842 R |
This valve cover gasket set is a direct replacement designed for many Mercedes-Benz V8 models and is used to restore a proper seal between the valve cover and cylinder head to stop oil leaks. Installation is straightforward and does not require special tools, making it suitable for a DIY job or a quick shop service; the package includes two gaskets to replace both sides where applicable. The manufacturer highlights high-temperature and oil-resistant materials intended to hold up under normal engine heat and oil exposure, which helps reduce the need for frequent rework. Fitment covers numerous SL, S, E, ML, G, CLK, CL, CLS and AMG variants from 1998 through 2011, so you can expect broad compatibility with ML-Class models in that range. Limitations include the usual need to ensure mating surfaces are clean and flat before installation and that gasket longevity depends on installation quality and engine condition, so worn valve covers or warped surfaces may still require additional repair.
Best for: Balanced buyers who value a practical, widely compatible replacement that lets them fix common oil leaks themselves or get a straightforward shop replacement without chasing OE-only parts.
Less Ideal for: Owners facing warped valve covers, cracked mating surfaces, or unusual engine damage who will likely need machining or additional repair rather than only a gasket replacement.
- Broad compatibility across many Mercedes-Benz V8 models from 1998 to 2011
- Constructed from materials advertised for oil and heat resistance
- Simple installation that does not require special tools
- Includes a pair of gaskets to replace both valve covers where needed
- Longevity depends on engine condition and surface prep rather than being guaranteed by the part itself
- No torque specs or detailed installation hardware included in the listing
Verdict: A broadly compatible, heat- and oil-resistant valve cover gasket set that simplifies fixing oil leaks on many Mercedes-Benz ML-Class and related V8 models.
2. MITZONE Aluminum Valve Cover with Gasket for Mercedes-Benz 3.2L/3.7L Engines (Left)
| Included Components | Gasket, Valve Cover |
|---|---|
| Material Type | Metals |
| Fit Type | Vehicle Specific Fit |
| Manufacturer Part Number | 004-383ALU |
| Position | Left Side |
This MITZONE valve cover kit replaces the left-side factory valve cover on select Mercedes-Benz V6 engines and ships with a matching gasket installed. Made from aluminum, it is intended to resist cracking and heat-induced deformation compared with plastic covers, so it keeps sealing surfaces stable under normal driving and higher engine temperatures. Installation is typical for a valve cover swap: remove the old cover, transfer any mounting hardware or components as needed, fit the included gasket, and torque the cover to spec. The kit is sold as a vehicle-specific fit for 1998–2005 ML, E, CLK, C, SLK and related 2.6L–3.7L engines, which simplifies matching for the listed applications. Practical benefits include a factory-replacement style fit, a gasket preinstalled to cut down on install time, and metal construction that can improve long-term durability. Limitations are that compatibility is limited to the stated Mercedes models and this listing covers only the left-side cover so buyers needing both sides must purchase separately and verify OEM interchange numbers before ordering.
Best for: Performance-oriented owners who prioritize stronger, heat-resistant replacement parts and want a close-to-factory fit for routine repairs or engine maintenance.
Less Ideal for: Buyers needing a universal or multi-vehicle valve cover solution, or those who require both left and right covers in a single purchase.
- Aluminum construction reduces risk of cracking and resists heat-related deformation compared with plastic covers.
- Includes a preinstalled gasket to simplify installation and reduce leak risk during fitment.
- Vehicle-specific design aimed to match factory mounting points for straightforward replacement.
- Fits only the left-side cover and does not include additional hardware that some installations may require.
- Compatibility is limited to the specific Mercedes-Benz model years and engines listed, so fitment must be confirmed before purchase.
Verdict: A durable aluminum, vehicle-specific valve cover kit with a preinstalled gasket designed to provide a stronger factory-style replacement for the left-side Mercedes V6 valve cover.
3. Mercedes-Benz Valve Cover Gasket, Part 112 016 02 21
| Brand Name | Mercedes Benz |
|---|---|
| Part Number | 112 016 02 21 |
| Material Type | Oem |
This is a factory-quality Mercedes-Benz valve cover gasket sold as the correct replacement for vehicles that use part number 112 016 02 21. It seals the valve cover to the cylinder head to prevent oil leaks and is typically installed during routine maintenance or when a leaking valve cover is diagnosed. Because it is a genuine Mercedes-Benz part, fitment and material compatibility should match factory expectations, making installation straightforward for a DIYer with basic mechanical skill or a technician. The main practical benefit is reliable sealing and the reassurance of a factory replacement part rather than an aftermarket alternative. Limitations are minimal but include the narrow fitment window tied to specific Mercedes engines and the lack of extra hardware or sealant in the listing, so you may need additional grommets or bolts depending on your vehicle's condition. Expect a simple, no-frills replacement that prioritizes correct fit and OEM compatibility over bundled extras.
Best for: Practical optimizers who prioritize correct-fit factory replacement parts to maintain reliability without overspending on extras.
Less Ideal for: Buyers seeking a full service kit with grommets, bolts, or sealant included should consider a comprehensive aftermarket kit instead.
- Factory-quality Mercedes-Benz part designed for correct fit and material compatibility
- Simple direct replacement that reduces risk of persistent oil leaks when installed properly
- Useful for routine maintenance or repair where OEM fitment is preferred over aftermarket
- Fitment is limited to engines that use part number 112 016 02 21
- Listing does not include additional hardware or seals that might be needed for a full valve cover service
Verdict: A straightforward OEM valve cover gasket that delivers factory fit for Mercedes owners who want a reliable, no-frills replacement.
4. MAXWIN Valve Cover Gasket Set for Mercedes-Benz 3.2L and 2.6L Engines
| Brand Name | MAXWIN |
|---|---|
| Part Number | NVC-0024 |
| Compatible Engines | 3.2L and 2.6L applications |
| Fits Models | Selected Mercedes‑Benz and Chrysler Crossfire years |
This MAXWIN valve cover gasket set supplies the seals needed when replacing leaking valve cover gaskets on compatible Mercedes‑Benz 3.2L and 2.6L engines and the Chrysler Crossfire 3.2L. The kit includes the valve cover gasket and is made with manufacturing methods intended to provide a reliable seal across normal engine temperature ranges. Typical use is a direct replacement during routine maintenance or leak repair to stop oil seepage around the valve cover and restore a clean engine bay. The practical benefit is an affordable, complete gasket set that fits a range of Mercedes models from late 1990s through the mid 2000s so you can perform the repair without sourcing multiple parts. Limitations are that fitment is specific to the listed engines and model years so confirm vehicle compatibility before ordering, and as an aftermarket budget option it may not match the longevity of higher-end factory-quality replacements under aggressive use. Installation requires basic mechanical skills and standard tools for valve cover removal.
Best for: Budget-conscious owners who prioritize low cost and straightforward repairs for older Mercedes‑Benz ML‑Class and related 3.2L/2.6L models and prefer to perform maintenance themselves or with a local shop.
Less Ideal for: Those seeking the longest-lasting or premium factory-quality replacement for high-mileage or performance‑modified engines should consider higher-end or OEM-equivalent options.
- Covers multiple Mercedes models with 3.2L and 2.6L engines so one kit fits several applications.
- Budget-friendly option that provides necessary seals for a valve cover gasket replacement.
- Manufactured for stable sealing across common engine temperature ranges.
- Includes a complete valve cover gasket set for a single repair job.
- Fitment limited to the specific model years and engine sizes listed, so it is not universal.
- Aftermarket budget construction may not offer the same long-term durability as higher-end or factory-quality gaskets.
Verdict: A cost-effective valve cover gasket set that gives budget-minded Mercedes owners the parts needed for a straightforward leak repair.
5. YunStal Left and Right Engine Valve Cover Gasket Set for Mercedes-Benz (fits listed models)
| Brand Name | YunStal |
|---|---|
| Material Type | Rubber |
| Reference Part Number | 1120160221 / 1120160321 |
This YunStal valve cover gasket set supplies left and right rubber gaskets designed as direct replacements for certain Mercedes-Benz engines. It is typically used when engine oil is leaking from the valve cover area or during scheduled head cover servicing. The listing highlights rubber construction for durability and claims direct-fit replacement to match factory sealing surfaces, which simplifies installation for a competent DIYer or independent shop. Practical benefits include availability as a matched pair and a material choice that should resist oil exposure. Important limitations are mixed fitment reports from other buyers and a range of user experiences with leaks or mismatched shapes, so careful inspection at installation and bolt-torque adherence are required. This is a budget aftermarket option suitable for routine repairs but may not match dealer parts for fit certainty in every case.
Best for: A reliability-focused buyer who prioritizes restoring proper engine sealing at reasonable cost and prefers a straightforward replacement part for routine maintenance or oil-leak repairs.
Less Ideal for: Drivers who need guaranteed dealer-level fitment and long-term warranty support or those unwilling to inspect and re-torque during installation should consider factory dealer parts instead.
- Matched left and right gasket set for complete valve cover replacement
- Rubber construction intended for oil resistance and flexibility
- Sold as a direct-replacement design to simplify installation for common Benz V6 covers
- Some buyers report fitment or shape mismatches that prevented installation
- Reports of leaks developing after short use in a minority of reviews
Verdict: A budget aftermarket valve cover gasket pair meant to restore sealing quickly for covered Mercedes-Benz V6 models.
6. ApplianPar Crankcase Breather Hose and Valve Cover Gasket Set for Mercedes-Benz M112 Engines
| Applicable models | Mercedes-Benz C320 E320 CLK320 ML320 ML350 S350 C240 C280 SLK320 C32 AMG (listed years) |
|---|---|
| Package contents | 4 crankcase breather hoses, 2 valve cover gaskets, 4 connectors |
| Part Number | 1120180382 |
This kit supplies valve cover gaskets, crankcase breather hoses, and connectors intended to replace the factory parts on Mercedes-Benz models that use the M112 V6 (examples listed include C320, E320, CLK320, ML320, S350 and similar years). Typical use is a service or repair to stop oil leaks and restore proper crankcase ventilation by replacing brittle hoses and worn gaskets. The package includes multiple hoses and two gaskets so it covers both valve covers and several breather runs in one purchase. Practical benefits are straightforward: it can save time by bundling the hoses and gaskets needed for a common repair and the hoses in the photos appear flexible and fitment-friendly. Important limitations are mixed fitment reports from buyers and some reviews noting early gasket leaks, which suggests variable quality control and that you may want to inspect fit and seal surfaces carefully during installation or keep OEM gaskets as a fallback.
Best for: A convenience-driven buyer who wants a single kit to replace valve cover gaskets and breather hoses on M112-equipped Mercedes ML-Class and similar models, prioritizing ease of sourcing and a one-stop repair solution.
Less Ideal for: Drivers who prioritize guaranteed factory-quality sealing or who lack confidence in checking part fitment should consider purchasing factory replacement gaskets or branded aftermarket options instead.
- Includes both valve cover gaskets and multiple breather hoses so one kit handles a full M112 valve cover service
- Hoses are flexible and come with connectors to simplify routing and installation
- Bundle reduces parts sourcing time compared with buying items separately
- Some customers reported incorrect fitment to V8 engines despite listings referencing M112 applications
- Reports of gaskets leaking after short use indicate inconsistent sealing performance
- Fitment and quality appear variable across batches which may require additional inspection or replacement
Verdict: A convenient all-in-one gasket and breather hose kit for M112 Mercedes-Benz engines that simplifies a common valve cover service.
7. NLQR Valve Cover Gasket and Crankcase Breather Hose Kit for Mercedes-Benz M112 3.2L V6
| Material Type | Rubber |
|---|---|
| Fits Engine | M112 3.2L V6 |
| Package Included | 2 valve cover gaskets, 4 connectors, 4 hoses |
| Interchange Part Numbers | VS50758R, 15758828, 1120180382 |
This NLQR kit supplies both left and right valve cover gaskets plus four rubber connectors and four crankcase breather hoses to service the M112 3.2L V6 used in many Mercedes-Benz ML, E, C, CLK and SLK models. It is intended as a full replacement kit so you do not need to buy hoses separately. The parts are molded from rubber and aim to replicate the factory sealing surfaces; several buyers report good fit and easy DIY installation that saves dealership expense. Notable features are the included grommets and hoses and the kit covering both cylinder banks. Practical benefits are lower cost and the convenience of a one-package repair when replacing leaking cover gaskets. Limitations are variable fit and material consistency reported by some users, with a few cases of poor sealing or parts not seating properly; risk-averse owners may prefer to confirm part numbers and inspect fit before final installation or consider a higher-end aftermarket or factory-quality gasket set for critical long-term sealing.
Best for: Risk-averse mainstream buyers who want a complete, budget-friendly replacement kit for routine valve cover gasket maintenance and prefer a single-purchase solution rather than sourcing multiple parts.
Less Ideal for: Those seeking confirmed factory-quality longevity or exact OEM fitment for a high-mileage or show vehicle should consider branded factory-quality gasket sets or dealer parts instead.
- Complete kit includes both left and right valve cover gaskets plus grommets and breather hoses for a single repair.
- Rubber construction provides flexible sealing and is compatible with standard engine service procedures.
- Covers the full M112 3.2L V6 engine, so it replaces both cylinder bank cover gaskets in one purchase.
- Lower-cost alternative to dealership parts that can enable a straightforward DIY replacement.
- Fit and sealing quality appear inconsistent across units with some reports of poor seating and early leaks.
- Material and finish are not uniformly factory-quality which can require RTV or additional attention during installation.
Verdict: A cost-effective, all-in-one replacement kit for M112 3.2L Mercedes-Benz engines that simplifies a valve cover gasket repair.
Choosing the Right Mercedes-Benz ML-Class Valve Cover Gasket: Key Factors to Consider
Gasket Material and Heat Resistance
The gasket material influences how long the seal lasts under engine heat cycles. Materials such as high-grade rubber, silicone, or composite blends handle thermal expansion differently, and a material prone to hardening or cracking can lead to premature leaks.
Pick a material specified for continuous exposure to engine oil and elevated temperatures. Higher heat resistance reduces the chance of compression set and helps preserve sealing force over time, which matters for cars that see extended highway driving or frequent temperature swings.
Dimensional Accuracy and Fitment
Exact dimensional match to the Mercedes-Benz ML-Class valve cover is critical to form a uniform seal. Even small discrepancies in hole placement or profile can create stress points that leak when the engine is running.
Look for gaskets with clear fitment data related to your model year and engine variant. Accurate fitment reduces installation retries and limits the need for sealant or modification, which can introduce variability and potential failure points.
Sealing Design and Features
Sealing features such as raised beads, molded lips, or integrated grommets improve how the gasket compacts under clamp load. These design elements direct the sealing force where it is needed and help maintain a continuous barrier against oil migration.
Consider whether the gasket includes molded areas around bolt holes or integrated seals for PCV passages. Such details reduce the risk of localized leaks and often make the part more tolerant of slight surface irregularities on the valve cover or head.
Durability and Chemical Compatibility
Gaskets are exposed to engine oil, fuel vapors, and various additives; chemical resistance affects how quickly a gasket will degrade. Materials that resist oil swell, chemical attack, and ozone help maintain sealing pressure over many heat cycles.
Evaluate vendor information on chemical compatibility and expected service life. A gasket rated for automotive fluids and ozone resistance is less likely to soften or swell, which preserves the seal and reduces long-term maintenance.
Installation Considerations and Hardware
Ease of installation affects whether the gasket will be torqued correctly and seated uniformly. Some gaskets come with additional seals or require new grommets and hardware; others are drop-in replacements that minimize steps.
Factor in whether you will need to replace bolt grommets, use a specific torque sequence, or apply a small amount of compatible sealant. Clear installation guidance and included hardware reduce the chance of user error and recurring leaks.
Serviceability and Maintenance Signals
Consider whether the gasket design allows for straightforward inspection and replacement during routine maintenance. Some gaskets make it easier to spot early symptoms of failure, such as visible oil at the cover edge or oil on ignition coil boots.
Choosing a gasket that simplifies future service can save time and help you address minor leaks before they cause secondary issues. Also think about whether the part supports common maintenance practices, such as re-torquing after warm-up or replacing related seals at the same time.
How We Chose the Best Mercedes-Benz ML-Class Valve Cover Gasket
We prioritized items that deliver a reliable seal and precise fit for Mercedes-Benz ML-Class engines. Key evaluation criteria included gasket material and construction to resist heat and oil, dimensional accuracy and OEM-compatible fitment, sealing features such as integrated ribs or bead designs, and long-term durability against extrusion and hardening. We also considered compatibility with common ML-Class valve cover designs, ease of installation including whether additional seals or grommets are needed, and the availability of torque and installation guidance.We excluded universal, non-specific gaskets that lack dimensional data or manufacturer fitment claims, as well as products without clear material specifications. Our short list focuses on parts that match the ML-Class valve cover geometry and offer clear instructions or documented torque guidance to minimize installation errors.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common symptoms of a failing valve cover gasket on an ML-Class?
Common signs often include visible oil around the valve cover edge, oil on ignition components, or a noticeable oil smell after parking. You may also see oil collecting under the vehicle near the engine area. Symptoms often appear gradually as the gasket material hardens or shrinks over multiple heat cycles.
Can I replace the valve cover gasket myself on an ML-Class?
Many owners with basic mechanical skills can complete the replacement, but it depends on engine access and required steps. The job typically requires controlled torque on the cover bolts, careful cleaning of mating surfaces, and possible replacement of grommets. If you are uncertain about torque specs or routing of hoses and wiring, professional service can avoid installation errors.
Do I need to use sealant when installing a new valve cover gasket?
Whether to use sealant depends on the gasket design and manufacturer guidance. Some modern gaskets are intended as drop-in parts without additional sealant, while others recommend a minimal, vehicle-specific sealant at corners or to secure ends. Follow the installation instructions closely to avoid excess sealant that can migrate into oil passages.
How long should a properly installed valve cover gasket last?
Life expectancy varies based on material quality, driving conditions, and maintenance. A well-installed gasket made of heat-resistant material often lasts many years, while exposure to high-mileage heat cycles and contaminants can shorten service life. Regular inspections help catch degradation early.
Will a leaking valve cover gasket affect engine performance?
A minor external leak usually does not immediately affect engine power, but oil on ignition components can cause misfires and erratic running if left unaddressed. Persistent leaks also increase engine bay contamination and can complicate diagnosis of other issues, so timely repair is advisable.
Conclusion
When choosing a valve cover gasket for a Mercedes-Benz ML-Class, prioritize material durability, exact dimensional fit, and a sealing design that matches the valve cover geometry. Installation factors such as included grommets, clear torque guidance, and ease of seating are equally important to prevent rework.Balance long-term chemical and heat resistance against installation simplicity. Addressing these tradeoffs up front will help you select a gasket that reduces leaks, protects ignition components, and minimizes future maintenance.
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