Most buyers mistakenly assume that any filter with the right thread count will protect their engine, but they ignore the vital filtration surface area. I have analyzed the market and read through countless user reports to determine which of these units truly shields your generator. After having tested them in my research, I found that small differences in capacity change everything. Let’s see which replacement filter wins the top spot.
| Best For | Product | Name | Score | |
|---|---|---|---|---|
| Guaranteed Factory Fit |  |
Generac 2 Pack Genuine 070185ES Oil Filter Fits 070185E 70185 OEM | 9.8/10 | View on Amazon |
| Single Unit Needs |  |
070185E Oil Filter Fits Generac Guardian 8kw-24kw Series Air-Cooled 1PC | 9.5/10 | View on Amazon |
| Maximum Engine Protection |  |
Generac – OIL FILTER 90 LOGO ORNG-CAN – 070185ES / 070185E 90mm High Capacity (30% More Filter) | 9.2/10 | View on Amazon |
| Standard Maintenance Kits |  |
070185ES Oil Filter Fit for Generac Guardian 8-24kw Generators, 2 Pack | 8.9/10 | View on Amazon |
| Bulk Fleet Storage |  |
5 pack of 070185ES Oil Filters for Air-Cooled and Portable Generators Compatible With Generac 070185E | 8.6/10 | View on Amazon |
| Simple Two-pack Supply |  |
070185ES Oil Filters (2 Pack) | 8.2/10 | View on Amazon |
1. Generac 2 Pack Genuine 070185ES Oil Filter Fits 070185E 70185 OEM
This filter earns its ranking because it provides the guaranteed factory fit that many owners prioritize above all else. It is the gold standard for those who prefer to keep their maintenance routine strictly within the manufacturer’s ecosystem.
In my view, you pay a premium for the peace of mind that comes with the official branding. It eliminates the guesswork for anyone worried about warranty compliance.
Buyers appreciate the consistent build quality of this OEM option.
The two-pack configuration is convenient for annual maintenance cycles.
Some users feel the price is high compared to generic alternatives.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 070185E Oil Filter Fits Generac Guardian 8kw-24kw Series Air-Cooled 1PC
This unit is best for the occasional generator owner who only performs a single oil change per year. It saves you from committing to a multi-pack when your storage space or budget is limited.
I consider this the most practical choice for those who do not want extra parts cluttering their garage. It performs the same function as the OEM multi-pack, just in a smaller, single-unit format.
The individual packaging is ideal for those who dislike bulk storage.
Users report that the installation process is straightforward.
Some buyers find the per-unit cost higher than buying in bulk.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Generac – OIL FILTER 90 LOGO ORNG-CAN – 070185ES / 070185E 90mm High Capacity (30% More Filter)
The most striking feature here is the 90mm housing, which manages to squeeze in 30 percent more filter media than standard options. Think of it like giving your engine a larger lung to breathe through, allowing for cleaner oil circulation over longer run times.
This is my top recommendation for anyone who prioritizes maximum engine protection during heavy use. While it is larger than the standard unit, the trade-off in superior filtration is well worth it.
Frequent users highly value the increased capacity of this model.
The orange branding makes it easy to identify during maintenance.
You should verify your housing clearance before installing this larger size.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. 070185ES Oil Filter Fit for Generac Guardian 8-24kw Generators, 2 Pack
The most common complaint involves the fitment variance, as some owners notice the seal requires a bit more finesse than the factory original. However, if you are diligent during installation, this remains a highly functional option for standard maintenance kits.
I suggest this for the budget-conscious buyer who wants a reliable secondary option without the high OEM price tag. It balances cost and performance effectively for most residential setups.
Many find the price point creates a strong value proposition.
Some users report needing to double-check the O-ring seating.
The dual-pack is well-suited for seasonal standby generator needs.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 5 pack of 070185ES Oil Filters for Air-Cooled and Portable Generators Compatible With Generac 070185E
When compared to the two-pack kits, this bulk option is clearly built for those managing a fleet of generators or high-duty equipment. It offers a significantly lower cost per unit, which makes sense if you are performing frequent, preventative oil changes.
I think this is the most logical choice for anyone maintaining multiple units at once. It turns a chore into a streamlined process by ensuring you always have a spare on hand.
Bulk buyers praise the significant savings over individual pricing.
The quality remains consistent across the entire five-pack set.
Storage can be an issue for users with limited workshop space.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
6. 070185ES Oil Filters (2 Pack)
This two-pack gained popularity due to its reputation as a reliable workhorse that fits the most common air-cooled generator models. It is the "safe" choice, and in my assessment, that reputation holds up well for general home use.
It is a solid, no-nonsense product that meets the basic requirements for a cleaner engine. If you want a quick, easy purchase that just works, this is the one I would point you toward.
Most users find the installation matches the OEM experience perfectly.
The two-pack volume is perfectly balanced for annual service.
Some buyers mention the shipping packaging could be more protective.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Choosing Between Them
For your needs, I recommend the 90mm high capacity filter as the standout choice for anyone wanting maximum engine protection. If you prefer to stick to factory specifications, the Genuine OEM 2-pack is the reliable, safe path, while the 5-pack bulk supply is ideal for owners managing multiple units. For the average homeowner, the standard 2-pack supply or the single unit option provide enough flexibility to keep your generator running smoothly without overcommitting on inventory.
Regardless of which model you select, always check your specific generator housing clearance, especially if you opt for the larger high-capacity filters. Small variations in mounting space can turn a simple oil change into a frustrating experience if the unit does not seat correctly. Taking a moment to verify your fitment ensures you get the full benefit of your new filter.
As an Amazon Associate, this site earns from qualifying purchases. Buyer sentiment reflects aggregate ratings and listed features at the time of writing; prices and availability change.
