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If you own a 2019-2024 Subaru Forester, picking the right oil filter matters for long-term engine health and consistent performance. Filters differ in construction, media efficiency, and how well they handle extended-interval or synthetic oils. The wrong choice can reduce protection or create fitment problems during routine maintenance.This guide presents our shortlist of the top oil filters for the 2019-2024 Forester, focusing on filtration efficiency, compatibility with synthetic oils, and proper sealing for the Forester's engine. Below you will find what we evaluated and why each factor is important for your Forester's maintenance schedule.
Looking for other parts? See all Subaru Forester parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Subaru Engine Oil Filter and Crush Gasket Kit (15208AA20A & 803916010) – Genuine Subaru |  |
| Best Quality Built to a higher standard if you want something more solid | Bosch 3974 Premium Oil Filter with FILTECH Media |  |
| Best Value The sweet spot between price and what you get | Kefly Engine Oil Filter 15208AA160 / 15208AA21A (1 Pack) |  |
| Best Budget The cheapest option that still gets the job done reliably | Jaxivo SOA6351520815 Engine Oil Filter (fits Subaru 2011–2025) |  |
| Highest Rated A top-rated pick with lots of positive feedback | Subaru Genuine Engine Oil Filter with Crush Washer (1 Pack) |  |
| Best Seller A high-volume bestseller chosen again and again | Mobil 1 M1-108A Extended Performance Oil Filter |  |
1. Subaru Engine Oil Filter and Crush Gasket Kit (15208AA20A & 803916010) – Genuine Subaru
| Thread Size | M16 x 1.5 |
|---|---|
| Material | Steel, Cellulose/Synthetic |
| Manufacturer Part Number | 15208AA20A |
| Automotive Fit Type | Vehicle Specific Fit |
This genuine Subaru oil filter kit provides a direct-fit replacement filter plus the crush gasket needed for a proper oil filter housing seal. It is intended for routine oil change service on compatible Subaru models and installs like a factory part, maintaining the vehicle maker's filtration design and thread fit. The filter media uses a cellulose/synthetic blend and the machined exterior and M16 x 1.5 thread size match factory mating surfaces, so you do not need adapters or modification. Practical benefits include dependable fitment, predictable filtration performance, and the included gasket reduces the chance of leaks after installation. The kit is single-item packaged, so you will need one kit per oil change. Buyers who prefer aftermarket performance or extended-life filters may find higher-capacity or synthetic-only options elsewhere, but for balanced, everyday driving this OEM kit offers straightforward compatibility and peace of mind.
Best for: Drivers who want a straightforward, factory-compatible replacement for regular oil change maintenance on supported Subaru models and value reliability and fitment over specialized performance features.
Less Ideal for: Drivers seeking long-drain interval filters or high-flow performance filters for motorsport or heavily modified engines should consider aftermarket specialty options instead.
- Factory-quality fit and thread sizing for direct replacement without modifications
- Includes crush gasket to ensure a proper seal after installation
- Cellulose/synthetic media balances filtration efficiency and cost
- Machined exterior and manufacturer part number ensure correct compatibility
- Single filter per package means purchasing one kit for each oil change
- Not marketed as extended-life or high-capacity performance filter
Verdict: If you want a reliable, factory-compatible oil filter and gasket for routine service on 2019–2024 Forester models, this Subaru kit delivers straightforward fit and dependable performance.
2. Bosch 3974 Premium Oil Filter with FILTECH Media
| Model | 3974 |
|---|---|
| OEM Part Number | F00E164423 |
| Automotive Fit Type | Vehicle Specific Fit |
| Material | Silicone |
The Bosch 3974 is a premium spin-on oil filter designed to capture fine contaminants and maintain oil flow during start-up and normal operation. It uses Bosch FILTECH media, which the company rates to hold up to 14 grams of dirt, and includes a silicone anti-drain back valve so oil remains in the engine after shutdown for quicker lubrication on cold starts. The strong steel base plate, spiral-wound center tube, and high-lubricity gasket improve structural durability and reduce the risk of leaks or warping under heat. For a performance-minded Subaru Forester driver, that filtration capacity and durable build help reduce abrasive wear and extend engine life between changes. The filter is a vehicle-specific fit for many Subaru applications, so installation is straightforward with standard hand tools. Downsides are typical of premium disposable filters: you must replace it at service intervals and verify exact fitment for your Forester year and engine since multiple Subaru trims exist.
Best for: Drivers who prioritize engine protection and tighter filtration for longevity and performance, especially those who perform regular maintenance or use higher-stress driving conditions.
Less Ideal for: Buyers seeking reusable or cartridge-style filters, or those who prefer no-fitment-guesswork universal filters.
- FILTECH media rated to capture and hold significant amounts of dirt for improved contaminant control
- Silicone anti-drain back valve preserves oil in the engine for faster lubrication at startup
- Reinforced spiral-wound center tube and steel base plate offer strong structural durability
- High-lubricity gasket creates a tight, leak-resistant seal while still allowing easy removal
- Must be replaced at regular intervals like any disposable filter rather than serviced
- Fitment varies by Subaru trim and year so buyers must confirm compatibility before purchase
Verdict: Choose the Bosch 3974 when you want stronger-than-stock filtration and durable construction to better protect a Subaru Forester's engine under performance-focused use.
3. Kefly Engine Oil Filter 15208AA160 / 15208AA21A (1 Pack)
| Thread Size | M16 x 1.5 |
|---|---|
| Product Grade | Replacement Part |
| Compatible with Vehicle Type | Car, Sports Utility Vehicle, Crossover |
| OEM Equivalent Part Number | 15208AA160, 15208AA15A, SOA6351520815, 15208AA20A, 15208AA21A |
| Material Type | Paper, Steel |
This Kefly engine oil filter is a direct replacement designed for Subaru 4-cylinder engines and swaps in for OEM numbers like 15208AA160 and 15208AA21A. It is used as a routine maintenance part during oil changes to trap contaminants and protect the engine between service intervals. The filter uses standard paper media and a steel canister construction, and the listing specifies compatible Forester model years and both non-turbo and later-engine applications, making it suitable for regular highway and daily driving. Practical benefits include wide compatibility across Subaru 4-cylinder lineups and a familiar M16 x 1.5 thread for straightforward installation with common tools. Limitations are that the product is a basic replacement grade filter rather than a premium, high-flow or extended-life design, so owners seeking maximum filtration efficiency under severe towing or heavy-duty conditions may prefer a higher-end option. The item includes a manufacturer quality guarantee for six months or 7,500 miles which provides short-term peace of mind after installation.
Best for: Drivers who prioritize dependable, affordable routine maintenance parts for Subaru 4-cylinder engines and want a straightforward replacement that matches factory part numbers.
Less Ideal for: Owners who frequently operate under severe duty, heavy towing, or long oil-change intervals and need high-flow or extended-life filtration solutions.
- Marked compatibility with many Subaru 4-cylinder models including Forester years called out in the listing
- Replaces multiple OEM part numbers, simplifying stocking and purchasing
- Standard M16 x 1.5 thread fits common Subaru filter mounts for easy installation
- Steel canister and paper media provide reliable basic filtration for routine use
- Replacement-grade design rather than a premium or extended-life filter
- No detailed filtration micron rating or advanced media specified
Verdict: A practical, factory-replacement style oil filter matched to Subaru 4-cylinder Forester applications for straightforward, cost-conscious maintenance.
4. Jaxivo SOA6351520815 Engine Oil Filter (fits Subaru 2011–2025)
| Manufacturer Part Number | SOA6351520815 |
|---|---|
| Compatible with Vehicle Type | Subaru |
| Thread Size | M 20 X 1.5 |
| Product Grade | Replacement Part |
| Material Type | Stainless Steel |
The Jaxivo SOA6351520815 is a spin-on replacement oil filter made to match Subaru factory fitment for many Forester, Outback, Impreza, Crosstrek, Ascent and Legacy applications. It uses pleated filter media and a spring-loaded bypass valve to keep oil flowing during cold starts, and the base assembly and gasket design aim to minimize leaks when installed. Typical use is routine oil change maintenance where you need a direct-fit filter that accepts Subaru thread size M20x1.5. The stainless steel components and factory-equivalent part numbers make it a straightforward substitution for scheduled service intervals. Practical benefits include broad Subaru fit coverage, easy hand-tight installation, and construction intended to withstand normal oil change intervals. Limitations are that it is a replacement-grade aftermarket part rather than an upgraded performance filter and that detailed filtration efficiency specs are not provided, so it is best for standard maintenance rather than extended drain or heavy-duty use.
Best for: Buyers looking to maintain a Subaru on a tight budget who prioritize correct fit and reliable, no-frills replacement parts for routine oil changes.
Less Ideal for: Drivers seeking high-performance or extended-drain filtration solutions for motorsport, heavy towing, or extended oil change intervals should consider premium or specialty filters instead.
- Vehicle-specific fit for many Subaru models including Forester and Outback
- Pleated filter media with a spring-loaded bypass valve for reliable cold-start oil flow
- Stainless steel base assembly and gasket design intended to reduce leaks
- Uses common Subaru thread size M20x1.5 for straightforward installation
- Manufacturer does not publish specific micron rating or filtration efficiency numbers
Verdict: A budget-friendly, vehicle-specific replacement that gives Subaru owners a correct-fit, reliable option for routine oil changes.
5. Subaru Genuine Engine Oil Filter with Crush Washer (1 Pack)
| Manufacturer Part Number | SOA6351520815 |
|---|---|
| Thread Size | M16 x 1.5 |
| Included Components | Oil Filter and Gasket |
| Material Type | Metal |
This genuine Subaru oil filter kit includes the engine oil filter and a crush washer for the drain plug, designed to meet factory fit and filtration expectations for covered Subaru models. It is intended for routine oil changes and removes microscopic contaminants to help protect engine wear surfaces when used with proper service intervals. Buyers will appreciate exact fitment and part-number continuity that avoids fitment headaches and ensures the filter matches Subaru service recommendations. The included crush washer simplifies drain plug sealing during each change. The main limitation is that this is a vehicle-specific, OEM replacement sold as a single filter and gasket rather than a bulk pack, so owners who perform frequent, high-volume servicing may prefer multi-packs or aftermarket alternatives with different pricing. Installation is standard for an oil change and follows manufacturer torque and replacement intervals for best results.
Best for: Subaru owners prioritizing long-term engine reliability and correct factory fit who want a direct replacement that follows manufacturer service guidance.
Less Ideal for: Shoppers who change oil for many vehicles or want bulk value packs should consider multi-packs or compatible aftermarket filters instead.
- Genuine Subaru part ensures factory-quality fit and compatibility with specified Subaru models
- Includes crush washer for a proper drain plug seal during oil changes
- Designed to capture microscopic contaminants to protect engine internals
- Sold as a single filter and gasket which may be less cost-effective for owners who change oil frequently
Verdict: Choose this genuine Subaru filter kit when you want factory-fit filtration and a correct drain gasket to maintain reliability on covered Subaru Forester models.
6. Mobil 1 M1-108A Extended Performance Oil Filter
| Material | fiber |
|---|---|
| Vehicle Service Type | Truck |
| Automotive Fit Type | Vehicle Specific Fit |
| Model | Mobil 1 M1-108A Extended Performance Oil Filter |
The Mobil 1 M1-108A is an extended-performance spin-on oil filter that uses synthetic fiber media and reinforced construction to trap more contaminants and resist high system pressures. It is used like a conventional replacement filter during oil changes but is engineered to maintain filtration efficiency for much longer intervals when paired with compatible full-synthetic oil. Notable features include higher contaminant capacity than many conventional filters, reduced flow resistance for consistent oil delivery, and a stronger housing that withstands elevated pressures. For a Forester owner prioritizing low risk and longer service intervals, this filter offers the practical benefit of fewer filter changes and potential convenience when combined with annual-protection synthetic oil. Limitations are that extended intervals depend on using the recommended Mobil 1 Annual Protection oil and following vehicle manufacturer guidance, and some owners may prefer standard-interval filters for heavy-duty or severe-service duty cycles.
Best for: A Forester owner who wants low-maintenance, longer oil-change intervals and prefers factory-quality replacement parts backed by proven filtration technology.
Less Ideal for: Drivers who regularly tow, operate in frequent short-trip or dusty conditions, or who prefer to follow shorter, factory-recommended oil-change intervals should consider conventional or severe-service filters instead.
- Synthetic fiber media captures more contaminants than many conventional filters
- Engineered to reduce flow resistance for steady oil delivery
- Reinforced construction tolerates higher system pressures
- Designed for extended service intervals when used with compatible full-synthetic oil
- Extended 20,000-mile or one-year intervals are contingent on using Mobil 1 Annual Protection oil and following manufacturer service guidance
Verdict: Choose this filter if you want a factory-quality, synthetic-media unit that supports longer service intervals when paired with compatible full-synthetic oil.
Choosing the Right 2019-2024 Subaru Forester Oil Filter: Key Factors to Consider
Filtration Efficiency and Micron Rating
Filtration efficiency determines how well an oil filter captures contaminants that can wear engine components. Look for published micron ratings and percent-capture figures; finer media will trap smaller particles and reduce engine wear over time.
For the Forester, efficient filtration is especially important because Subaru boxer engines rely on clean oil to protect horizontally opposed components and maintain tight tolerances. Higher-efficiency media can be beneficial when using synthetic oils, which suspend different contaminant sizes. However, very fine media can reduce flow under extreme conditions, so balance efficiency with adequate flow specifications.
Compatibility With Synthetic And Extended‑Interval Oils
Synthetic oils often allow longer drain intervals and can carry different contaminant loads. Choose a filter whose media and internal adhesives are rated for use with synthetic oil and longer change intervals to prevent media breakdown or bypass valve issues.
If you plan to extend service intervals on your Forester, prioritize filters with laboratory-proven durability and anti-bypass features. Filters not designed for extended intervals may clog prematurely or allow unfiltered oil to flow, increasing engine wear.
Fitment And Gasket Design
Proper fitment is essential to avoid leaks and ensure full oil flow. Filters and cartridges must match the Forester's sealing surface dimension and thread engagement. Pay attention to gasket material and thickness because improper sealing can lead to oil seepage or gasket deformation when torqued.
Gasket resilience at varying temperatures matters in climates where the Forester sees both cold starts and hot operating conditions. An anti-leak gasket combined with correct installation torque minimizes risks of oil loss and contamination.
Anti‑Drainback Valve And Cold‑Start Protection
An anti-drainback valve prevents oil from draining out of the filter when the engine is off, which reduces dry-start wear at initial cranking. For Foresters used in cold climates or with intermittent driving patterns, this feature helps maintain oil pressure and immediate lubrication on startup.
Inspect the valve material for compatibility with synthetic oils and temperature extremes. A durable anti-drainback valve preserves oil in the filter housing and protects bearings and cam lobes during the critical first seconds after starting.
Construction Quality And Canister Integrity
The physical build of the filter—can thickness for spin‑on types or housing strength for cartridge designs—affects durability and resistance to collapse under pressure. A robust canister and strong end caps reduce the chance of failure during high-flow events or when the filter is subjected to vibration.
Foresters that tow, carry heavy loads, or see spirited driving place extra stress on filtration components. Reliable construction reduces the chance of debris bypassing the media due to structural failure.
Serviceability And Installation Considerations
Consider how easy the filter is to install and service during routine maintenance. Spin‑on filters simplify swaps, while cartridge filters may require replacement of inner elements and seals. Clear instructions, accessible gasket surfaces, and predictable torque values reduce installation errors.
Also factor in availability of replacement elements and whether the filter requires any special tools. For DIY Forester owners, straightforward installation and forgiving gasket designs make routine oil filter replacement faster and less error-prone.
Understanding Spin‑On Versus Cartridge Options
Modern Foresters can be serviced with either spin‑on filters or cartridge-style elements depending on the engine and service method. Spin‑on filters are a single sealed unit that screws onto the housing, while cartridge systems use a replaceable internal element within a reusable housing. Each style has tradeoffs in waste, convenience, and long-term cost.
Spin‑on filters are typically quicker for an oil change because you discard the whole unit, whereas cartridge systems reduce disposable material and can be cheaper long-term if replacement elements are readily available. Confirm which style fits your 2019-2024 Forester engine before buying a replacement element.
- Spin‑on: fast swap, fully contained, easy for DIY.
- Cartridge: less waste, replacement elements only, may need new O-rings.
- Always replace sealing O-rings and inspect the housing surface.
Choosing A Filter For Synthetic Oil Use
If you run synthetic oil in your Forester, select a filter explicitly rated for synthetic compatibility. Synthetic oils can carry different types of contaminants and may affect adhesives and media differently than conventional oils. Filters labeled for synthetic use often include reinforced media and adhesives resistant to breakdown over extended intervals.
Consider also the expected change interval. Standard 3,000-mile intervals have different demands than 7,500- or 10,000-mile synthetic intervals. Match the filter's durability claims to your planned maintenance schedule.
- Verify media and adhesive compatibility with synthetic formulations.
- Match filter life claims to your intended oil change interval.
Addressing Oil Filter Gasket Leak Risks
Gasket leaks are a common source of oil loss after filter service. To minimize risk on the Forester, ensure the gasket surface on the engine housing is clean and free of old gasket material. Use the recommended torque for spin‑on filters and avoid overtightening, which can deform the gasket and cause leaks.
Inspect the replacement filter's gasket for uniformity and proper thickness. Softer gaskets typically seal well but can extrude under high temperatures, while firmer gaskets hold shape but may not conform to minor surface irregularities.
- Clean mating surface before installation.
- Lubricate gasket lightly with fresh oil to help seal.
- Tighten to the vehicle or filter manufacturer torque spec when available.
How Oil Filter Size And Fitment Affect Flow
Filter dimensions—height, thread size, and gasket diameter—directly affect compatibility and oil flow. A filter that differs from specified dimensions may not seal or could restrict flow. Always check fitment data and, if available, consult an OEM size chart or vehicle fitment guide for the Forester's model years.
Flow restrictions can cause increased oil temperatures or reduced pressure at high RPM. Choosing the correct physical size and confirmed fitment ensures proper flow characteristics and consistent pressure throughout the engine's operating range.
- Confirm thread pitch and gasket diameter for compatibility.
- Avoid adapters that alter flow unless engineered for the application.
Routine Oil Filter Maintenance Interval Guidance
The appropriate maintenance interval for an oil filter depends on driving conditions, oil type, and manufacturer recommendations. For many Forester owners using synthetic oil, intervals between 5,000 and 10,000 miles are common, but severe driving conditions like frequent short trips, towing, or dusty environments warrant shorter intervals.
When extending intervals, choose filters rated for longer service life and inspect oil condition more frequently. Pay attention to the condition of the gasket and anti-drainback valve during each change to ensure consistent protection.
- Short trips and heavy loads generally require shorter intervals.
- Inspect filter and oil for contamination if operating in severe conditions.
Still looking for the perfect fit?
Select your Subaru Forester configuration to see the most relevant Oil Filters recommendations
How We Chose the Best 2019-2024 Subaru Forester Oil Filter
We evaluated options that are appropriate for the 2019-2024 Subaru Forester and prioritized filters that meet or exceed common industry filtration standards. Our selection criteria emphasized mechanical compatibility, filtration media performance, and serviceability for owners who perform routine maintenance.Key evaluation criteria included: filtration efficiency and micron ratings to measure particle capture; compatibility with synthetic and extended‑interval oils to ensure the filter does not degrade prematurely; anti-drainback valve design to prevent dry starts, especially for engines that sit between uses; gasket design and torque sensitivity to avoid leaks on the Forester's filter housing; and overall construction quality including canister strength for spin‑on style filters or housing integrity for cartridge systems.We excluded filters lacking clear specifications, those without compatible sealing dimensions for 2019-2024 Forester engines, and any products with repeated fitment complaints. We also considered ease of installation and availability of replacement elements where applicable. This approach ensured the list favors dependable performance, correct fit, and practical service considerations for Subaru Forester owners.
Our full evaluation process is outlined in our review methodology.
FAQ
How often should I replace the oil filter on my 2019-2024 Forester?
It depends on your oil type and driving conditions. For conventional oil, change the filter with every oil change. With synthetic oil and normal driving, many owners change the filter every 5,000 to 10,000 miles, but severe conditions call for shorter intervals.
Can I use any spin‑on oil filter on my Forester as long as the thread fits?
Not always. Thread fit is necessary but not sufficient. You also need correct gasket diameter, bypass valve settings, and media rated for your planned intervals. Choose filters specified for the Forester's engine dimensions and service requirements.
Should I prefer a cartridge filter or a spin‑on for the Forester?
Both work if they are the correct fit. Spin‑on filters are easier for quick DIY changes, while cartridge systems produce less waste and can be more cost effective if replacement elements are available. The right choice depends on your service preference and the specific engine configuration.
What causes an oil filter gasket leak and how do I prevent it?
Leaks often stem from a dirty or damaged sealing surface, incorrect gasket seating, or overtightening. Prevent leaks by cleaning the mating surface, lightly oiling the gasket before installation, and tightening to the specified torque rather than cranking down hard.
Is an anti‑drainback valve necessary for my Forester?
Anti-drainback valves are beneficial, especially in cold climates or for engines that sit idle between starts. They help maintain oil in the filter and reduce wear during startup. Choose filters with a reliable valve material rated for synthetic oils and temperature extremes.
How can I check that a replacement filter is compatible with my Forester?
Verify published fitment data including thread size, gasket diameter, and overall height against Forester specifications for 2019-2024. Also confirm media ratings and any manufacturer notes about synthetic oil compatibility or recommended change intervals.
Final Verdict
For a 2019-2024 Subaru Forester, prioritize correct fitment and filtration performance when choosing an oil filter. Balance filtration efficiency with adequate flow and select a gasket and anti-drainback design suited to your climate and driving patterns.When in doubt, match the filter dimensions to your Forester's specifications and pick a media rated for your intended oil and service interval. That approach reduces the risk of leaks, preserves engine life, and gives predictable maintenance outcomes for your Forester.
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