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Replacing engine gaskets on a Mazda CX-5 matters because poor sealing can cause oil leaks, loss of compression, and premature component failure. Choosing the right gasket set helps restore proper sealing surfaces, maintain engine performance, and avoid repeat repairs. This guide examines our shortlisted top picks for Mazda CX-5 engine gasket sets. We evaluated each option for material quality, fitment accuracy, and the range of seals and gaskets included to help you find a complete kit that suits your repair or overhaul needs. Read on for how we assessed these sets and what to look for when you replace engine gaskets.
Looking for other parts? See all Mazda CX-5 parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Fel-Pro VS 50094 R Valve Cover Gasket Set |  |
| Best Quality Built to a higher standard if you want something more solid | AUCERAMIC Valve Cover Gasket Set for 3.5L/3.7L V6 Engines |  |
| Best Budget The cheapest option that still gets the job done reliably | INFINAUTO Engine Valve Cover Gasket Set for Mazda 3/6/CX-5 2.5L I4 |  |
| Most Sold A high-volume bestseller chosen again and again | Sorello Engine Valve Cover Gasket Set (replacement VS50639R1) |  |
| Best Value for Money The sweet spot between price and what you get | Quaneguzy Valve Cover Gasket Set for Mazda 3/ CX-5/CX-3 (Rubber) |  |
| Best Overall The best all-around choice for most situations | Fel-Pro VS 50639 R-1 Valve Cover Gasket Set |  |
1. Fel-Pro VS 50094 R Valve Cover Gasket Set
| Brand Name | Fel-Pro |
|---|---|
| Material Type | Rubber |
| Model | VS 50094 R |
| Unit Count | 1.0 Count |
This Fel-Pro VS 50094 R valve cover gasket set replaces the valve cover seal to stop oil leaks and restore a proper engine seal. It is intended for repair use where sealing surfaces may be imperfect, using a cork-rubber formulation that conforms to irregular surfaces and includes any necessary parts for the valve cover repair. In practice the gasket is installed when replacing a leaking valve cover seal or during routine head-cover service; reviewers report straightforward fit and long-lasting leak-free performance when installed correctly. The material is pliable and conformable which helps achieve a tight seal without extensive surface machining, but the gasket can arrive slightly compressed and may need gentle reshaping or softening before installation. Expect a reliable, repair-oriented replacement that prioritizes sealing performance, though careful preparation and correct installation technique are still required to avoid future leaks.
Best for: Reliability-focused buyers who prioritize a durable, repair-grade gasket to stop oil leaks and extend engine service intervals on their Mazda CX-5.
Less Ideal for: Buyers seeking a purely cosmetic part or a rapid temporary fix should consider alternatives, and those unwilling to prepare sealing surfaces or follow correct installation procedures should have the work done professionally.
- Designed to conform to imperfect sealing surfaces for reliable oil sealing
- Proprietary cork-rubber formulation improves long-term durability compared with generic gaskets
- Includes the parts needed for a typical valve cover repair so you do not need additional components
- Real-world testing and validation reported by users showing good fit and no leaks after installation
- May arrive compressed or bundled and require soaking or reshaping before fitment
- Not a direct discussion of CX-5 fitment here so buyers must confirm vehicle compatibility before ordering
Verdict A repair-grade, conformable valve cover gasket set built for reliable long-term sealing when fitted and installed correctly on compatible Mazda engines.
2. AUCERAMIC Valve Cover Gasket Set for 3.5L/3.7L V6 Engines
| Replaces part numbers | VS50767R, VS50490, 151074201 |
|---|---|
| Included pieces | 2 valve cover gaskets, 8 spark plug tube seals, 23 grommets |
| Material | Molded rubber one-time vulcanization |
| Fitment note | Fits first-design (without variable valve timing) |
This valve cover gasket set supplies the valve cover gaskets, spark plug tube seals, and grommets needed when replacing leaking valve cover seals on compatible 3.5L and 3.7L V6 engines. It is made from one-time vulcanized molded rubber that the listing describes as heat, oil, and aging resistant, so it should hold up under normal engine temperatures and prevent oil seepage when installed correctly. The kit includes multiple grommets and two full valve cover gaskets, which is convenient for a complete top-end reseal during a maintenance or repair session. Important limitations are that the kit only fits the first-design heads without variable valve timing and does not include VCT/camshaft solenoid seals, so it will not work for engines that require those specific seals. Also fitment must be checked carefully against the Mazda CX-5 application because this kit is listed for certain Ford and Mazda V6 models and may not match CX-5 cylinder head designs.
Best for: Performance-oriented buyers seeking a high-quality replacement gasket set for top-end sealing work and who prioritize durable, heat-resistant components when rebuilding or refreshing an engine.
Less Ideal for: Drivers wanting a comprehensive gasket overhaul for engines with variable valve timing or those who need VCT/camshaft solenoid seals should look for a more complete kit specific to their engine design.
- Molded rubber one-time vulcanization construction for heat and oil resistance
- Includes two valve cover gaskets plus spark plug tube seals and multiple grommets for a full reseal
- Meets or exceeds factory specification claims for proper sealing performance
- Compact kit that supplies the common parts needed for valve cover leak repairs
- Does not include VCT or camshaft solenoid seals required on engines with variable valve timing
- Designed only for the first-design heads without variable valve timing so fitment is limited
- Fitment differences reported by some buyers mean you must verify compatibility before ordering
Verdict A durable, heat-resistant valve cover gasket kit for compatible 3.5L/3.7L V6 engines, but confirm fitment if your engine uses variable valve timing.
3. INFINAUTO Engine Valve Cover Gasket Set for Mazda 3/6/CX-5 2.5L I4
| Fitment | Mazda 3, Mazda 6, CX-5 2.5L I4 |
|---|---|
| Material | Rubber |
| OE Number | PY01-10-235 |
This INFINAUTO valve cover gasket set is a no-frills replacement intended for Mazda 2.5L I4 engines such as those in the CX-5, Mazda3, and Mazda6. It is made from rubber designed to resist heat, pressure, and corrosion, and is supplied as a single set to reinstall the valve cover seal. Typical use is a DIY or shop-level swap when the original gasket shows oil seepage or after valve-cover service. The listing notes matching fitment but warns of small dimensional variance, which matches owner reports that it can be slightly loose during installation and may need a thin bead of gasket adhesive to hold it in place. Its practical benefits are straightforward: low cost, simple installation, and materials chosen for basic engine sealing. Limitations are that it is a non-factory part with possible fit differences versus factory-quality gaskets and fewer assurances about long-term durability or exact tolerance. Buyers should be prepared for minor fit adjustments during installation and avoid relying on it for high-performance or extended service intervals without inspection.
Best for: Budget-conscious owners focused on an inexpensive, functional fix for valve-cover leaks who prioritize cost savings over factory-spec parts.
Less Ideal for: Those seeking a factory-quality direct replacement for high-mileage engines or long-term uninterrupted service should consider higher-end or OEM options.
- Low-cost replacement specifically listed for Mazda 2.5L I4 applications
- Rubber construction with heat, pressure, and corrosion resistance for basic sealing
- Supplied as a complete set for valve cover resealing, suitable for DIY installation
- Non-factory part so fitment can vary slightly and may require adhesive or minor trimming
- No explicit long-term durability data or warranty information provided
Verdict A cheap, serviceable gasket set for Mazda 2.5L engines that can save money but may need minor fit adjustments during installation.
4. Sorello Engine Valve Cover Gasket Set (replacement VS50639R1)
| Compatible OE numbers | VS50639R1, 1S7Z-6584-BA, LF02-10-230 |
|---|---|
| Vehicle compatibility (examples) | Fits many Ford/Mazda/Mercury 2.0L and 2.5L applications — verify CX-5 engine fitment |
| Package contents | Valve cover gasket x1, small gasket x3 |
This Sorello valve cover gasket set is a direct-replacement kit built to the original specification numbers listed and intended to stop oil seepage around the valve cover. Installation is straightforward for a competent DIYer or a technician because the parts are shaped to fit into the valve cover groove without modification; the package includes the main valve cover gasket plus three small gaskets used on associated openings. The seller describes a rubberized compound that resists engine heat and flexing, which helps maintain a seal and can reduce engine bay noise and heat transfer. In real-world use it is mainly installed when a CX-5 shows oil leaks or after valve cover removal for maintenance. Limitations to keep in mind are that compatibility must be verified for your specific model year and engine, and aftermarket compounds can vary from factory parts in long-term durability. If you need a long-lasting factory-quality replacement, confirm fitment before installation and follow proper surface prep to avoid repeat leaks.
Best for: A risk-averse mainstream buyer who prioritizes minimizing oil leaks and getting a straightforward replacement that follows factory specifications for routine maintenance on their CX-5.
Less Ideal for: Owners seeking an upgraded performance or lifetime-sealing solution should consider premium branded alternatives or OEM parts designed specifically for extended warranties.
- Designed to match original part numbers for straightforward fitment when compatible
- Rubberized compound intended to resist heat and maintain a durable seal
- Includes necessary small gaskets so you get the main valve cover seal and associated seals in one kit
- Simple direct-replacement design suitable for DIY or professional installation
- Compatibility covers many models so you must double-check fitment for the CX-5 year and engine variant before buying
- Long-term durability may differ from factory parts depending on driving conditions and installation quality
Verdict A budget-friendly, direct-replacement valve cover gasket set that stops leaks if you confirm exact CX-5 fitment beforehand.
5. Quaneguzy Valve Cover Gasket Set for Mazda 3/ CX-5/CX-3 (Rubber)
| Compatible Mazda models | Mazda CX-5 2013 2014 2015 2016 |
|---|---|
| Material Type | Rubber |
| Replacement part number | PE01-10-235 |
This Quaneguzy valve cover gasket is a straightforward replacement designed to seal the valve cover to the cylinder head and stop oil from leaking into the valve-train area. It is supplied as a single rubber gasket meant as a direct replacement for part number PE01-10-235 and is intended for use on supported Mazda engines. Installation is typical: remove the old gasket, clear debris, seat the new rubber gasket, and refit the cover. The rubber construction offers flexibility for a snug fit and resists typical engine conditions, which makes it a budget-friendly option for routine repairs. User reports show generally good fitment, though one reviewer reported a less-than-perfect fit and had to reuse their old gasket. Expect a low-cost, no-frills part that works well when the correct part number and year match are confirmed, but be prepared to verify fit at installation and replace again if you encounter sealing issues or variation in factory tolerances.
Best for: Practical optimizers looking to fix an oil leak on a tight budget and willing to verify fit during installation to save on labor and parts costs.
Less Ideal for: Drivers seeking a long-term premium OEM-equivalent part or anyone unwilling to check fit and replace again if initial sealing is imperfect.
- Direct replacement for part number PE01-10-235 for supported Mazda models
- Rubber material provides flexibility to conform to valve cover contours
- Simple direct-install design for typical DIY replacement
- Low-cost option suitable for routine maintenance
- Sold as a single gasket so additional seals or hardware may be needed for a full service
- Fitment reports vary so verification during install is recommended
Verdict A budget-friendly, rubber direct-replacement gasket for supported Mazda models that delivers good value if you confirm fit during installation.
6. Fel-Pro VS 50639 R-1 Valve Cover Gasket Set
| Brand | Fel-Pro |
|---|---|
| Material | Rubber |
| Manufacturer Part Number | VS50639R1 |
This Fel-Pro valve cover gasket set replaces the perimeter and spark-plug-well seals used to stop oil leaks from the valve cover area. It is intended for routine gasket replacement during valve cover removal or when oil is found in spark plug wells. The set uses a cork-rubber formulation and molded ribs that hold the gasket in the valve cover groove, which makes installation cleaner and reduces the chance of the gasket falling out during assembly. Buyers will appreciate that the kit is designed to seal imperfect mating surfaces and includes the parts needed for a typical repair, reducing trips to the parts store. Some users report the outer perimeter gasket may need minor trimming on certain engines, so careful fit-checking and surface prep are required. The gasket set is a practical, tested replacement for resolving oil seepage around the valve cover, but installers should follow torque specs and consider cleaning the sealing surfaces thoroughly before reuse to ensure a long-lasting seal.
Best for: Balanced all-round buyers wanting a reliable, factory-quality repair part to fix valve cover oil leaks and get their Mazda CX-5 back to normal without overpaying or hunting for individual pieces.
Less Ideal for: If you prefer a lifetime performance upgrade or need a gasket set designed for high-performance or modified engines, choose a product specified for those conditions instead.
- Factory-quality cork-rubber formulation for reliable sealing on imperfect surfaces
- Molded ribs that help keep gaskets seated during installation, simplifying assembly
- Includes required gasket pieces for a standard valve cover repair so you get a complete kit
- Widely used and real-world tested with many user reports of successful leak repair
- May require trimming or minor adjustments on some engine variants to fit perfectly
- Does not include explicit torque or installation hardware beyond gasket pieces
Verdict A dependable, OEM-style valve cover gasket set that makes a practical, proven repair for valve cover oil leaks on the Mazda CX-5.
Choosing the Right Mazda CX-5 Engine Gasket Set: Key Factors to Consider
Gasket Material and Construction
Gasket material affects longevity and sealing ability. Metal-reinforced multi-layer steel, composite, and high-quality elastomers each behave differently under heat and pressure. Multi-layer steel head gaskets generally resist blowout and maintain compression better in higher-stress areas, while composite or fiber materials can work well for lower-pressure sealing surfaces.
Construction matters for crush and recovery characteristics. Materials that resist permanent deformation help maintain sealing after repeated thermal cycles. Also consider whether gaskets include coatings or surface treatments that improve oil resistance and adhesion to mating surfaces.
Fitment Accuracy and Application Match
Accurate dimensions are critical so gaskets align with bolt holes, coolant passages, and oil galleries. A set that matches the Mazda CX-5 engine geometry reduces installation time and the risk of leaks. Kits that specify exact engine codes or model years help ensure compatibility with the cylinder head and block design.
Poorly fitted gaskets can cause immediate leaks or long-term failures. Verify that the set covers the specific components you plan to service, from head gaskets to intake and valve cover seals, so there are no missing pieces during a rebuild or repair.
Range of Components Included
Decide whether you need a complete overhaul kit or a targeted repair set. Full engine gasket kits usually contain head gaskets, intake and exhaust gaskets, valve cover gaskets, oil pan gaskets, timing cover seals, and various O-rings and washers. Repair-specific kits focus on the elements commonly causing leaks, such as head or valve cover gaskets.
A more complete kit reduces the chance of needing additional parts mid-job, but verify you are getting the right items rather than generic extras that are not applicable to your engine layout.
Sealing Surfaces and Finish
Surface finish and sealing features like raised beads, integrated seals, or pre-applied sealants affect initial installation and long-term sealing. Smooth, precision-machined surfaces with proper gasket finishes promote uniform contact and reduce hotspots where leaks can begin.
Pre-applied sealants can speed assembly but may complicate removals or hide installation issues. Consider whether you prefer raw gaskets to pair with a specific sealant or factory-style kits with integrated coatings for convenience.
Durability Under Heat and Chemical Exposure
Engine gaskets face high temperatures, oil exposure, coolant contact, and vibration. Materials must resist thermal degradation, oil swelling, and chemical breakdown. Look for materials rated for prolonged exposure to engine oils and coolant formulations used with the Mazda CX-5.
Durability reduces the chance of early failure and repeat labor. Consider manufacturer or supplier claims about temperature ratings and resistance to oil and coolant to judge expected service life compared with typical driving conditions.
Ease of Installation and Serviceability
Some gasket sets include alignment dowels, labeled parts, or hardware to simplify reassembly. Kits that clearly identify each piece and include commonly replaced fasteners can reduce installation errors and time under the hood. Consider whether the set requires special tools or machining to install correctly.
Think about access to service documentation and torque specifications for the Mazda CX-5 engine. A gasket kit that matches the OEM layout and does not require trimming or modification helps ensure a smoother install and fewer opportunities for mistakes.
FAQ
How do I know which gasket set fits my Mazda CX-5 engine?
Match the kit to your Mazda CX-5 engine code and model year, and check that the supplier lists fitment for your specific engine variant. Look for kits that specify compatibility with the CX-5 engine layout and include the gaskets for the components you plan to service.
Can I reuse old gaskets when working on the CX-5 engine?
Reusing gaskets is generally not recommended because most gasket materials compress and conform during use. Replacing gaskets ensures fresh sealing surfaces and reduces the risk of leaks after reassembly. Certain metal or reusable seals may be serviceable, but follow manufacturer guidance for those specific parts.
Should I use additional sealant with a gasket set?
That depends on the gasket design and manufacturer instructions. Some gaskets are intended to be installed dry, while others benefit from a specific sealant at certain joints. Follow the kit documentation and the Mazda CX-5 service manual torque and sealing recommendations to avoid excess sealant that can obstruct passages.
What are common signs that the CX-5 needs new engine gaskets?
Typical indicators include external oil leaks, coolant loss without visible external leaks, white smoke from the exhaust suggesting coolant in the combustion chamber, or low compression readings. These symptoms often point to failed seals or head gaskets and warrant inspection.
Is it better to buy a complete engine overhaul gasket kit or only the specific gaskets I need?
A complete overhaul kit provides all seals and gaskets you might encounter during a teardown, which can save time if additional parts are discovered to be worn. A targeted kit is more economical when the issue is isolated. Choose based on the scope of work and the likelihood of needing additional gaskets once the engine is opened.
How We Chose the Best Mazda CX-5 Engine Gasket Set
To build this list we focused on fitment and sealing performance for the Mazda CX-5 engine application. Key evaluation criteria included gasket material and construction, thickness and crush characteristics for reliable sealing, inclusion of all necessary gaskets and seals for a given repair scope, and the precision of component dimensions to ensure correct fit. We also considered compatibility notes tied specifically to Mazda CX-5 engine variants and the expected durability of sealing surfaces under normal operating conditions. We excluded aftermarket kits that lacked clear application data for the Mazda CX-5 or omitted common wear items such as valve cover seals or oil pan gaskets. Kits intended only for partial repairs without head or intake gaskets were deprioritized. Our goal was to highlight comprehensive sets and repair-focused kits that cover common failure points on the CX-5 engine.
Our full evaluation process is outlined in our review methodology.
Conclusion
When selecting a Mazda CX-5 engine gasket set, prioritize accurate fitment, high-quality materials, and the right scope of components for the repair. Balance the convenience of a complete kit against the likelihood you will need extra gaskets discovered during disassembly. Pay attention to surface finish, durability under heat and oil exposure, and whether the kit follows the CX-5 engine application details. A carefully chosen set reduces the chance of repeat repairs and helps restore reliable sealing for the engine.
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