When it comes to lawn mower maintenance, changing the oil and oil filter is one of the most important tasks to keep your engine running smoothly. With so many different types and brands of oil filters on the market, it can get confusing trying to figure out which one is right for your mower. The short answer is no, not all lawn mower oil filters are the same. There are some key differences you’ll want to be aware of when selecting a replacement oil filter.
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Oil Filter Types
There are two main types of oil filters used in lawn mower engines:
- Spin-on oil filters – These feature a threaded base that you screw on to the engine block. Spin-on filters surround the filter element with an enclosed metal canister.
- Cartridge oil filters – Cartridge filters use a removable filter element that slides into a housing on the engine block. The housing has a cover that clips into place.
Most modern lawn mowers use spin-on style filters as they tend to be more convenient to install. Within these two main types, there are standard filters and premium filters available. Premium filters usually have a more durable construction and higher filtration capability.
Interchangeable Models
Sometimes you may see the term “interchangeable” used when referring to replacement oil filters. This means the filter can directly replace the original manufacturer’s filter, using the same sizing and threading. However, being interchangeable doesn’t necessarily mean the filter is exactly the same or equivalent to the OEM filter.
Aftermarket companies manufacture oil filters to match the dimensions and threads of OEM filters so they can be used as replacements. But the overall design and quality can vary amongst brands. When selecting an interchangeable filter, it’s important to choose a reputable brand marketed as a high quality OEM equivalent filter.
Filter Ratings and Certifications
Replacement oil filters may also differ in their filtration performance ratings. Important measures to look for include:
- Micron rating – This indicates the size of particles the filter can trap. Look for a 10 micron or lower rating for optimal filtering.
- gasket material – Premium filters use nitrile gaskets which are more durable than basic rubber gaskets.
- Filter capacity – Expressed in grams or quarts, this measures how much debris the filter can hold.
- Certifications – Look for filters certified by organizations like ISO or SAE to meet certain standards.
Higher ratings in these areas generally indicate a better quality oil filter. Again, comparing an aftermarket filter against the OEM specifications can give you an idea if the replacement provides comparable filtration performance.
Using Non-OEM Filters
Can you use a non-OEM oil filter in your lawn mower? In most cases, yes – provided it is designed as a direct interchangeable replacement. The oil filter primarily acts to remove contaminants and break down particles. So even a “cheap” filter can get the job done from that perspective. However, keep in mind:
- Non-OEM filters may not have the same longevity and durability as the original filter.
- An inferior replacement filter could require more frequent oil changes.
- Using a filter not designed for your mower may result in improper fit and leaks.
- Filter certifications help vet quality – avoid no name discount filters.
To be safe, consult your owner’s manual to see which filters are recommended for your model. And check specifications carefully when considering an aftermarket replacement brand.
Lawn Mower Brand Oil Filter Differences
There can also be differences between oil filter requirements across lawn mower brands. Here are some examples:
John Deere Oil Filters
John Deere lawn tractors generally use spin-on style oil filters. Common replacements include:
- John Deere AM125424 oil filter
- AM116304 oil filter
- AM125424 filter
These are standard duty filters with cellulose filter media. Make sure to use a filter with the correct micron rating and gasket material recommended for your mower.
Craftsman Lawn Mower Oil Filters
Craftsman mowers use filters like the Craftsman 951-1058 filter cartridge. This threads into the engine housing. Aftermarket options like the Mobil 1 M1-110 filter work as direct replacements.
Toro Oil Filters
Common Toro oil filter numbers include:
- Toro P/N 117-1961
- Toro P/N 137-2159 oil filter
- Toro P/N 137-2158
Toro brand and aftermarket spin-on filters made for Toro mowers are available. Check the micron ratings when comparing.
Husqvarna Lawn Mower Oil Filters
For Husqvarna mowers, you’ll need filters like:
- Husqvarna 531 30 82-02
- 580 74 92-01
- 578 18 88-01
Use only filters meeting Husqvarna’s specifications to avoid problem. Check the product details closely.
So in summary, oil filter requirements can vary depending on the specific lawn mower brand and model. Always consult your owner’s manual when looking for a replacement filter.
Aftermarket Brand Oil Filter Quality
When selecting an aftermarket oil filter from a brand like Fram, Purolator, or Mobil 1, filter quality can vary. Generally, more premium aftermarket filters provide comparable performance to OEM filters, while very cheap filters may not perform as well or last as long. Here are some top aftermarket oil filter options:
| Filter Brand | Model Number | Micron Rating | Filtration Type |
|---|---|---|---|
| Mobil 1 | M1-110 | 28 | High capacity synthetic blend media |
| Purolator | PL14610 | 5 | Purolator One multi-fiber blend |
| FRAM | PH6607 | 22 | Full-flow synthetic media |
| WIX | 51348 | 6 | Multi-pass performance media |
Again, be sure any aftermarket filter matches the dimensions and threads of your OEM filter. Premium aftermarket filters like these often meet or exceed OEM specifications.
Tips for Selecting a Replacement Oil Filter
To select the right replacement oil filter for your lawn mower engine, keep these tips in mind:
- Always check your owner’s manual for the recommended OEM filter number and cross-reference guides.
- When using an aftermarket filter, match the micron ratings and gasket material to the OEM filter.
- Select a reputable brand – Mobil 1, WIX, and Purolator are good choices.
- Verify the replacement filter dimensions match your mower’s housing.
- Compare filtration capacity and certifications between brands.
- Avoid extremely cheap generic filters that may be lower quality.
Taking the time to find the right oil filter replacement will keep your mower’s engine running clean. Be wary of filters that are priced much lower than the OEM filters – this can be an indicator of inferior quality. With the right oil and filter change intervals, your mower’s engine will last longer.
Conclusion
When it comes to lawn mower oil filters, there are definite differences between brands, models, and types. Not all filters are created equal. OEM filters built specifically for your mower’s engine will offer the best fit and filtering performance. When choosing an aftermarket filter, look for a brand engineered to meet or exceed OEM specifications.
Match key criteria like micron ratings, gasket materials, and filtration capacity against your mower’s recommended filter. Reputable aftermarket companies like Mobil 1, WIX, and Purolator offer quality oil filters comparable to OEM filters in many cases. Avoid cheap generic filters that could have less filtration capability and poor durability.
With high quality oil and the right filter, you can keep your mower’s engine running clean. Be sure to consult your owner’s manual for the manufacturer’s oil filter recommendations. While interchangeable filters may fit your mower, look closely at the specifications to determine if the replacement filter provides equivalent performance.