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If you own a Subaru Forester, a failing valve cover gasket can lead to oil leaks, burning smells, and messy engine bays. Choosing the right gasket matters because a good seal preserves engine cleanliness, prevents oil loss, and avoids related component damage. This guide highlights the top shortlisted valve cover gaskets selected for fit and sealing performance in Forester engines. We evaluated options based on material durability and sealing reliability to help you pick the right replacement for your vehicle. Read on to see the criteria we used and which gaskets made the list.
Looking for other parts? See all Subaru Forester parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | CNS Engine Parts Valve Cover Gasket Set for Subaru 2.5L FB25 (2011–2015) |  |
| Most Popular A crowd favorite that many people choose with confidence | CNS Valve Cover Gasket Set with Spark Plug Tube Seals and Grommets for Subaru 2.2L/2.5L SOHC H4 |  |
| Best Quality Built to a higher standard if you want something more solid | Subaru Valve Cover Gasket Kit (fits turbo 2.5L EJ255/EJ257) |  |
| Best Budget The cheapest option that still gets the job done reliably | MPLUS Valve Cover Gasket Set for Subaru EJ22/EJ25 1998–2005 |  |
| Most Sold A high-volume bestseller chosen again and again | Fel-Pro VS 50780 R Valve Cover Gasket Set for Subaru |  |
| Best Value for Money The sweet spot between price and what you get | Subaru Left Valve Cover Gasket 13272AA170 |  |
| Best Overall The best all-around choice for most situations | Fel-Pro VS50830R Valve Cover Gasket Set for Subaru Forester |  |
1. CNS Engine Parts Valve Cover Gasket Set for Subaru 2.5L FB25 (2011–2015)
| Compatible engines/years | 2011–2015 Subaru Forester/Outback/Legacy 2.5L FB25 |
|---|---|
| Contents | 2 Valve Cover Gaskets |
| Brand | CNS Engine Parts |
This CNS valve cover gasket set replaces the factory valve cover seals on Subaru 2.5L FB25 engines and is intended for routine leak repair or preventive maintenance. It includes two gaskets sized for the left and right valve covers and is sold as a direct replacement intended to match the OEM sealing surface. In use you remove the valve covers, clean the mating surfaces, install the new gaskets and torque the covers to spec. Buyers report an exact fit and improved sealing compared with old, hardened gaskets, and the slightly thicker profile can help stop persistent oil seepage. The product is straightforward for experienced DIYers and professional shops, but it does not include sealant, bolts, or additional grommets, so those may need sourcing separately. Fitment is specific to the 2011–2015 Subaru Forester, Outback and Legacy with the FB25 engine, so confirm the engine code before ordering.
Best for: A reliability-focused buyer who prefers proven, direct-fit replacement parts to stop oil leaks and keep a Subaru Forester running without unexpected repairs.
Less Ideal for: Not a good choice for someone needing a full gasket and hardware kit or for owners who do not have the FB25 engine and cannot confirm fitment.
- Direct-fit replacement for Subaru FB25 2.5L valve covers, simplifying installation
- Reported exact fit and reliable sealing that stops oil leaks
- Simple two-piece set covers both valve covers for a complete repair
- Does not include bolts, grommets, or sealant needed for some installations
- Limited to vehicles with the FB25 engine code so compatibility must be verified
Verdict A simple, reliability-minded valve cover gasket set that fits FB25 Subarus and fixes oil seepage, but you may need to source hardware or sealant separately.
2. CNS Valve Cover Gasket Set with Spark Plug Tube Seals and Grommets for Subaru 2.2L/2.5L SOHC H4
| Compatibility | 98-12 Subaru/SAAB 2.2L / 2.5L SOHC H4 (16 Valve) — EJ22/EJ25 engines |
|---|---|
| Package includes | Valve cover gasket, spark plug tube seals, grommets |
| Manufacturer | CNS Engine Parts |
This CNS kit supplies a full valve cover gasket replacement for Subaru SOHC EJ22 and EJ25 engines, pairing the main gasket with spark plug tube seals and multiple grommets so you can reseal the valve cover and plug wells in one job. It is typically used when oil is leaking into the spark plug recesses or around the valve cover edge; installers report the pieces fit well and the parts look factory-quality. The inclusion of tube seals and grommets saves a separate parts run and simplifies a DIY or quick shop repair. Expect straightforward installation if you are comfortable removing the valve cover and cleaning the mating surfaces first. Limitations: fitment varies across model years and some buyers noted extra grommets or slight differences in molded shape compared with factory parts, so careful test-fit and attention to seating in the cover ridge are advisable. Also this is a parts-only kit without adhesives or torque specs, so follow service manual procedures when reassembling.
Best for: Buyers who prioritize convenience and want a single-purchase repair kit to fix oil leaks and reseal spark plug wells quickly without multiple part orders.
Less Ideal for: Shoppers seeking an exact factory-match kit for a specific year who prefer dealer-sourced parts or those who want included installation materials and instructions.
- Complete kit includes valve cover gasket plus spark plug tube seals and grommets for a single repair job
- Parts appear factory-quality and provide a straightforward replacement for leaking valve covers
- Saves time by bundling all commonly replaced gasket components in one purchase
- May include extra grommets or gasket contours that require careful test-fit on some model years
- Does not include installation supplies like RTV or torque instructions
Verdict A convenient all-in-one gasket kit that makes resealing Subaru EJ22/EJ25 valve covers quick, but check fitment and test-fit parts before final installation.
3. Subaru Valve Cover Gasket Kit (fits turbo 2.5L EJ255/EJ257)
| Manufacturer | SUBARU |
|---|---|
| Fits engines | EJ255 EJ257 (2.5L turbo) |
| Included parts | Valve cover gasket and spark tube seals |
This gasket kit supplies the valve cover gasket and associated spark tube seals for Subaru turbo 2.5L engines (EJ255/EJ257) and is intended as a direct factory-quality replacement during valve cover service on Forester XT models. Typical use is during valve cover removal for gasket replacement or routine top-end maintenance; the kit includes the primary gaskets needed to restore a sealed valve cover and prevent oil leaks into the spark plug wells. Because the parts are Subaru-manufactured items with OEM part numbers, fitment is straightforward and minimizes the fuss of trimming or modification. Practical benefits include correct profile and sealing surfaces that match factory tolerances and fewer compatibility questions compared with aftermarket kits. Limitations: the kit appears to contain only the valve cover gaskets and spark tube seals so any missing small components reported by some users will require sourcing separately, and proper sealing still depends on clean mating surfaces and correct torque sequence during installation.
Best for: Performance-oriented owners focused on maintaining the Forester XT's turbo 2.5L top end with factory-quality replacement parts and predictable fitment.
Less Ideal for: If you want a full overhaul kit that includes bolts, manifold gaskets, or other hardware, this basic gasket set alone is not sufficient and you should source a more comprehensive kit.
- Factory-numbered Subaru parts for direct fit on compatible turbo 2.5L Subaru engines
- Includes spark tube seals alongside the valve cover gasket for a more complete top-end seal
- Matches factory sealing profile which reduces risk of oil leaks when installed correctly
- Does not include additional small hardware that may be needed for some model years
- Some customers reported missing individual gasket pieces in shipments from time to time
Verdict A straightforward factory-numbered gasket kit for Forester XT owners who prioritize OEM fit and performance-grade reliability during valve cover service.
4. MPLUS Valve Cover Gasket Set for Subaru EJ22/EJ25 1998–2005
| Fitment | 1998–2005 Subaru EJ22/EJ25 SOHC |
|---|---|
| Manufacturer | MPLUS OE SOLUTION AUTOPARTS |
| Manufacturer Part Number | X-VC3017 |
This MPLUS valve cover gasket set is a straightforward replacement for Subaru 2.2L and 2.5L SOHC engines from 1998 to 2005. The kit includes the rubber valve cover gasket engineered to seal the valve cover and prevent oil leaks and contamination of the valve train. Installation is the typical DIY job for owners comfortable removing the valve cover and swapping the gasket; the rubber material offers flexibility that simplifies seating during reassembly. The listing notes manufacturing to meet or exceed factory-quality standards, so it should restore a solid seal without the premium price of OEM parts. Expect practical benefits like reduced oil seepage and an inexpensive way to address common Subaru valve cover leaks. The set is a basic, single-purpose repair part, so it lacks advanced materials or added components that professional rebuild kits might include, and long-term durability may vary compared with higher-end aftermarket or factory replacement parts.
Best for: Budget-conscious owners seeking an inexpensive, do-it-yourself repair to stop valve cover oil leaks on 1998–2005 Subaru Forester and related models.
Less Ideal for: Those who want a full rebuild kit with extra seals, upgraded materials, or professional-grade longevity should consider higher-end replacement options.
- Affordable replacement that targets a common Subaru oil-leak issue
- Rubber gasket material that is flexible and easy to seat during installation
- Marketed to meet or exceed factory-quality standards for a direct sealing function
- Fits multiple 1998–2005 Subaru models with EJ22 and EJ25 SOHC engines
- Basic kit without additional seals or hardware that some repair jobs may require
- Durability may not match more expensive OEM or premium aftermarket gaskets
Verdict A cost-effective, no-frills valve cover gasket set that restores a factory-style seal for older Subaru EJ22/EJ25 engines at a budget price.
5. Fel-Pro VS 50780 R Valve Cover Gasket Set for Subaru
| Material | Rubber |
|---|---|
| Manufacturer | Fel-Pro |
| Manufacturer Part Number | VS50780R |
| Compatible Models | Subaru Forester (see fitment notes) |
This Fel-Pro gasket set replaces the valve cover seal and spark plug tube seals on Subaru applications and is intended for repair use on Subaru Forester engines covered by the fitment notes. The kit includes the main valve cover gaskets and spark plug seals so you can reseal the cover without sourcing multiple parts. Fel-Pro uses a cork-rubber style compound and says the gaskets are made to conform to imperfect sealing surfaces, which helps achieve a reliable oil-tight seal after installation. In real-world use buyers report good fitment and that the set stops oil seepage when installed carefully. Installation on Foresters can be tight and sometimes requires slight engine movement and patient alignment; hand-threading bolts and using the correct inch-pound torque is important to avoid stripped threads. Some users note occasional early leaks on high-mileage cars, so careful prep and correct torqueing matter for longevity.
Best for: A risk-averse mainstream buyer who wants a direct replacement gasket set from a respected supplier to restore a leaking Forester valve cover with minimal parts uncertainty.
Less Ideal for: Drivers looking for a long-term performance upgrade or specialty high-temperature materials should consider premium or OEM-specified alternatives.
- Includes both valve cover gaskets and spark plug tube seals for a complete repair
- Cork-rubber formulation designed to conform to imperfect sealing surfaces for better sealing
- Confirmed fit for many Subaru Forester model years so no part-sourcing guesswork
- Reputed brand with on-vehicle testing and broad real-world use
- Installation on Forester engines can be tight and may require lifting the engine slightly or removing motor mount hardware
- Some users report leaks reappearing sooner than expected on older or high-mileage engines
Verdict A practical, full gasket kit that reliably restores a Forester valve cover seal when installed carefully, but requires patient, correct installation for best longevity.
6. Subaru Left Valve Cover Gasket 13272AA170
| Manufacturer | Subaru |
|---|---|
| Model | Rocker Cover Gasket |
| Item model number | 13272AA170 |
| OEM Part Number | 13272 AA170 |
This Subaru left valve cover gasket is a direct-fit factory replacement intended to seal the left-side rocker cover on compatible Subaru engines. It is used during valve cover removal for routine maintenance, gasket replacement, or oil-leak repairs and installs the same way as the original part. As a genuine OEM component, it matches factory profiles and mounting points so alignment and sealing are straightforward, which reduces installation guesswork and the risk of leaks when fitted correctly. The part is lightweight and made from quality materials typical of Subaru replacement parts, so it holds up to engine heat and oil exposure. Limitations to note are narrow fitment: it covers the left side only and the matching right-side gasket must be purchased separately, and it does not include installation supplies such as RTV or new bolts. For DIYers or shops wanting a proven, factory-spec sealing solution this gasket provides a dependable, no-frills replacement.
Best for: Practical optimizers looking for a cost-effective, factory-quality replacement part that minimizes fitment risk and uncertainty during routine maintenance or leak repairs.
Less Ideal for: Buyers seeking a complete gasket kit with both sides and installation hardware or those who prefer aftermarket multi-piece kits with included seals and bolts.
- Genuine Subaru part designed to match factory sealing surface and bolt pattern
- Direct-fit replacement that simplifies installation and reduces fitment issues
- Durable materials suited to engine heat and oil exposure
- Lightweight and compact, easy for DIY installation or technician handling
- Left-side gasket only so the right-side must be purchased separately
- Does not include installation accessories like sealant or replacement bolts
Verdict A straightforward, factory-spec left valve cover gasket for Subaru owners who want a reliable, no-surprises replacement at a practical price.
7. Fel-Pro VS50830R Valve Cover Gasket Set for Subaru Forester
| Brand | Fel-Pro |
|---|---|
| Model | VS50830R |
| Position | Center |
This Fel-Pro valve cover gasket set supplies the gaskets and spark plug tube seals needed when replacing valve cover seals on Subaru Forester engines. It is engineered from a cork-rubber formulation to conform to imperfect sealing surfaces and is intended for routine repair or maintenance when the original gaskets are leaking or aged. Installation is straightforward for someone comfortable with basic engine work: remove the valve cover, clean mating surfaces, fit the new gaskets and reinstall using sealant only where specified. The set is tested on-vehicle and includes the necessary parts for a complete valve cover service, which reduces trips to parts stores. Some users report excellent long-term sealing, while a few note occasional quality-control issues such as missing or damaged tube seals in the kit, so inspect components before install. If you plan to have a shop do the work, factor labor into the overall cost advantage.
Best for: Balanced, practical owners who want a factory-quality replacement gasket set to refresh their Subaru Forester during routine maintenance or to address leaks without unnecessary complication.
Less Ideal for: Drivers who prefer to avoid any installation risk should consider having a professional install the set or choose a dealer-supplied replacement to guarantee parts packaging and fitment.
- Designed to conform to imperfect sealing surfaces for a reliable seal on Subaru engines
- Includes all valve cover gasket components and spark plug tube seals for a complete repair
- Proprietary cork-rubber formulation balances flexibility and durability
- On-vehicle testing and validation for real-world performance
- Some kits have reported missing or damaged tube seals out of the box
- Occasional fitment errors reported from improperly matched or packaged gaskets
Verdict A complete, factory-quality gasket set that restores valve cover sealing on Subaru Forester engines but inspect the kit before installation for missing tube seals.
Choosing the Right Subaru Forester Valve Cover Gasket: Key Factors to Consider
Material and Durability
The gasket material determines how well it resists heat, oil, and age-related hardening. Materials like high-grade rubber blends or composite polymers tend to offer better resistance to the thermal cycling common in Subaru Forester engines.
A more durable material reduces the chance of cracking, shrinking, or flattening over time, which are common causes of leaks. Consider how the material will interact with engine oil and exposure to contaminants, since incompatible materials can swell or degrade and lose sealing effectiveness.
Sealing Design and Profile
The gasket profile must match the valve cover flange and provide consistent compression along the entire sealing surface. A gasket with an appropriate cross-section and integrated ridges or beads helps maintain contact pressure and prevents oil migration.
Poorly designed profiles can create high or low compression zones that lead to leaks, especially around bends, bolt holes, and corners. Look for gaskets engineered to maintain seal integrity under repeated tightening and thermal expansion.
Fitment and Compatibility
Correct fitment is essential for a leak-free installation. Gaskets designed specifically for Subaru Forester valve covers will align with bolt holes, PCV ports, and other engine features, reducing installation headaches.
Universal or generic gaskets often require trimming or modification, increasing the risk of improper sealing. Ensuring the gasket matches your engine layout avoids alignment issues and minimizes the chance of errors during installation.
Installation Requirements
Some gaskets are drop-in replacements, while others require sealant at corners or around fasteners. Knowing the installation method affects labor time and the tools or materials you will need.
Consider whether the gasket needs a break-in period, specific torque sequencing, or surface preparation such as cleaning and mild abrasion. Simpler installations reduce the risk of mistakes that can cause leaks after the repair.
Resistance To Oil And Heat
Valve cover gaskets are constantly exposed to hot oil and elevated under-hood temperatures. A gasket that resists oil absorption and retains elasticity under heat will maintain its seal longer.
Materials that degrade when exposed to oil will harden and crack, while heat-resistant compounds retain flexibility. Assess the expected operating temperature range and choose a gasket specified to withstand that environment.
Longevity And Maintenance Needs
Consider expected service life and whether the gasket will require periodic inspection or early replacement. Some designs are intended for long-term duty with minimal maintenance, while others may be suitable as short-term fixes.
A longer-lasting gasket reduces the frequency of repeat repairs and the related labor. Factor in how easy future resealing will be if additional engine work is anticipated, and whether the gasket can tolerate repeated removal and reinstallation.
FAQ
How do I know if my Subaru Forester valve cover gasket is leaking?
Common signs include oil pooling under the valve cover, oily residue on the engine or spark plug wells, and a burning oil smell when oil contacts hot components. You may also notice low oil levels over time. Visual inspection around the valve cover flange and bolt areas often reveals seepage or wet spots.
Can I replace a valve cover gasket myself?
Many owners can perform a valve cover gasket replacement with basic hand tools and moderate mechanical skill. The job usually involves removing the valve cover, cleaning mating surfaces, and installing the new gasket with correct torque on fasteners. Follow manufacturer torque specs and a clean workspace to reduce the chance of leaks.
Should I use sealant with a Subaru Forester valve cover gasket?
Whether to use sealant depends on the gasket design and manufacturer guidance. Some gaskets are intended as drop-in parts and do not require additional sealant, while others need a small amount of RTV at corners or critical junctions. Use only the recommended product and apply sparingly to avoid excess squeezing into engine passages.
How long does a valve cover gasket typically last?
Lifespan varies with material quality, driving conditions, and maintenance, but many modern gaskets last several years under normal use. Exposure to extreme heat, oil contamination, or frequent removal can shorten service life. Regular inspection helps catch degradation before leaks become severe.
Will a leaking valve cover gasket cause engine damage?
A leaking valve cover gasket usually causes oil loss and messy engine bays rather than immediate internal engine damage. However, persistent leaks can lead to low oil levels, oil contamination of ignition components, or fouled sensors, which may cause performance issues if not addressed. Timely repair prevents secondary problems.
How We Chose the Best Subaru Forester Valve Cover Gasket
We focused on criteria that directly affect long-term sealing performance and compatibility with Subaru Forester engines. Key evaluation points included material composition and resistance to oil and heat; gasket design and sealing profile to match valve cover geometry; compatibility with factory torque specifications and bolt patterns; longevity under thermal cycling and vibration; and ease of installation including whether the gasket requires RTV or special preparation. We excluded products that lacked clear compatibility with Forester valve covers, had insufficient material specification details, or showed repeated reports of premature failure. We also set aside gaskets intended for unrelated engines or universal-fit seals without dedicated Forester fitment. Our picks emphasize parts that balance reliable sealing, durable materials, and straightforward installation, rather than promotional claims or unverified longevity statements.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a Subaru Forester valve cover gasket, prioritize correct fitment and a material that resists oil and heat. A gasket with the right sealing profile and durable construction reduces the chance of recurring leaks and keeps the engine bay cleaner. Balance installation complexity against expected longevity. If you plan frequent engine access, favor gaskets that tolerate removal and reinstallation. Ultimately, select a gasket that matches Forester flange geometry and meets the durability and sealing criteria discussed above.
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