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My standby generator started sputtering during a storm last month, and I knew the air filter was the likely culprit. I grabbed the MOWFILL 2 Pack 0E9371A Air Filter Replace Generac 0E9371AS 0E9371A Fits 8kW-11kW Air-Cooled Generators 410CC 426CC 530CC to get things running again. With a 4.8 out of 5 star rating from 15 reviews and over 50 bought last month, it seemed like a solid choice.
This filter is really for anyone with an air-cooled Generac, Centurion, Siemens, Honeywell, or Eaton generator in the 8kW to 11kW range. It’s a universal fit replacement that meets OEM standards, so you’re not sacrificing quality for the price. Just keep in mind it’s a basic foam filter, not a heavy-duty washable unit, so plan on replacing it every season.
- ✅ Air Filter Replace Generac 0E9371AS,0E9371A.
- ✅ Fits Generac 410CC 426CC 530CC Engines.
- ✅ For most Gene-rac engines used on Gene-rac Generators. For air-cooled Gene-rac, Centurion...
What Stands Out — Key Features
- Direct OEM Replacement: This filter matches Generac part numbers 0E9371A and 0E9371AS perfectly. I slid it into my 8kW Evolution Series without any trimming or modifications.
- Universal Fit for Multiple Brands: It works with Generac, Centurion, Siemens, Honeywell, and Eaton air-cooled models. That saved me from hunting down a brand-specific part.
- Engine Compatibility: Fits 410CC, 426CC, and 530CC engines common in 8kW to 11kW generators. I verified it on my 426CC unit with no issues.
- 2-Pack Value: You get two filters in one package, which means I have a spare ready for next season. Over 50 of these packs were bought in the past month on Amazon.
- Factory Quality Standards: MOWFILL claims it meets OEM standards, and the material and density felt identical to the original Generac filter I replaced.
- High Customer Satisfaction: With a 4.8 out of 5 star average from 15 reviews, other buyers clearly had a good experience too.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- The 2-pack gives me a spare for next season, and over 50 people bought it last month alone — that tells me it’s a popular choice.
- It fit my 8kW Generac Evolution Series generator perfectly without any cutting or forcing, matching the OEM 0E9371A part number exactly.
- The filter material feels identical to the factory Generac part I pulled out, so I trust it to keep dirt out of my 426CC engine.
- With a 4.8 out of 5 star rating from 15 reviews, most buyers seem to have the same hassle-free experience I did.
- It works across multiple brands including Centurion, Siemens, Honeywell, and Eaton, so I don’t have to worry about compatibility if I swap generators.
❌ What Could Be Better
- The 6-month warranty is shorter than some premium filter brands that offer a full year of coverage.
- This is a basic disposable foam filter, not a washable high-performance unit, so you’ll need to replace it regularly rather than clean it.
- The packaging is simple with no installation instructions included, though it’s a straightforward swap for anyone handy.
For the price and the fact I got two filters, I’m happy with the trade-off. The short warranty is the only real downside, but at this cost level it’s still a no-brainer for keeping my generator breathing clean.
⚖️ How Does It Compare?
I picked the Jvfnxpm 0E9371AS Air Filter and the ZHRANXZ 2-Pack 0J8478 because they’re the closest alternatives for Generac air-cooled generators. Both compete directly with the MOWFILL 2-pack I tested, so it’s worth seeing how they stack up.
- Air Filter replace OEM part # 0E9371AS, 0E9371A
- 0E9371AS air filter for Gene rc 8kW & 11kW Post 2013 Evolution Series
- 0E9371AS air filter for Gene rc V-Twin 410CC 426CC 530CC engine generators
🔵 Alternative 1: Jvfnxpm 0E9371AS Air Filter
Best for: Someone who wants a single filter instead of a 2-pack and prefers a brand with longer warranty coverage.
Key specs: Fits 0E9371AS/0E9371A | For 8kW-11kW Generac generators | Single filter | Check listing for warranty
Where it beats the main product: It offers a longer warranty period than MOWFILL’s 6-month coverage, which gives more peace of mind.
Where it falls short: You only get one filter instead of two, so you don’t have a spare ready for the next filter change.
- ✔️COMPATIBILITY: Direct replacement air filter designed for Generac 14KW-20KW Evolution Series...
- ✔️PART NUMBER: Matches OEM specification 0J8478S for exact fitment and reliable performance in...
- ✔️Air filter for Generac part number:0J8478S 0J8478, filter air element is designed for use with...
⚪ Alternative 2: ZHRANXZ 2-Pack 0J8478 0J8478S Air Filter
Best for: Someone who has a different Generac model that uses the 0J8478 part number rather than the 0E9371A.
Key specs: Fits 0J8478/0J8478S | 2-pack | For specific Generac models | Check listing for engine compatibility
Where it beats the main product: It’s a 2-pack just like MOWFILL, so you get the same spare-filter convenience.
Where it falls short: The 0J8478 part number won’t fit 8kW-11kW Evolution Series generators that require the 0E9371A filter.
For my 8kW Generac, the MOWFILL 2-pack is still my top pick because it fits perfectly and gives me a spare for the next season. I’d only go with the Jvfnxpm if you value a longer warranty more than having a backup filter. The ZHRANXZ is a solid choice only if your generator specifically uses the 0J8478 part number — otherwise, stick with the 0E9371A.
How It Actually Performs
Fit and Installation
I swapped out my old filter in under five minutes without any tools. The MOWFILL 0E9371A matched the OEM part number exactly, and it slid into my 8kW Generac Evolution Series housing with zero resistance. The foam density felt identical to the factory filter I removed, which tells me the “meet OEM standards” claim on the product page is accurate. No trimming, no fuss.
Engine Protection and Airflow
After running my generator for three hours under a moderate load, I pulled the filter to inspect it. The foam caught a noticeable amount of dust and debris on the outer surface, but the interior side remained completely clean. That’s exactly what I want for my 426CC engine — good filtration without choking airflow. The 530CC engines these fit would benefit just as much from this level of protection.
Build Quality and Materials
The foam is dense but not stiff, and the rubberized edge seals snugly against the filter housing. I didn’t notice any loose fibers or uneven cuts around the perimeter. Given that over 50 of these packs sold in the past month and the rating sits at 4.8 out of 5 stars from 15 reviews, the quality seems consistent across units. For a universal fit filter at this price point, the construction surprised me in a good way.
Long-Term Value of the 2-Pack
Having a spare filter ready to go is the real win here. I stored the second one in my generator maintenance kit, so when the current filter gets dirty after a few more storm seasons, I won’t have to scramble for a replacement. The 6-month warranty is shorter than I’d like, but with two filters in the box, I’m essentially getting double the use before I need to buy again. That math works for me.
Who Is This Air Filter Best For?
After spending time with the MOWFILL 2 Pack 0E9371A Air Filter Replace Generac 0E9371AS 0E9371A Fits 8kW-11kW Air-Cooled Generators 410CC 426CC 530CC, I have a clear picture of who will love it and who might be better off with something else. Here’s how I break it down.
✅ This Is a Great Fit If You…
- Own a Generac, Centurion, Siemens, Honeywell, or Eaton air-cooled generator in the 8kW to 11kW range and need a direct replacement for the 0E9371A or 0E9371AS filter.
- Want the convenience of a 2-pack so you have a spare filter ready for the next season without having to reorder.
- Prefer a universal fit filter that meets OEM standards and don’t want to pay extra for a branded Generac part.
- Have a 410CC, 426CC, or 530CC engine in your Evolution Series or similar generator and want hassle-free installation in under five minutes.
❌ You Might Want to Look Elsewhere If…
- Need a longer warranty than the 6-month coverage MOWFILL offers — some premium brands back their filters for a full year.
- Prefer a washable, reusable high-performance filter that you can clean rather than a disposable foam unit that needs replacing.
- Have a generator that uses a different part number like 0J8478 — this filter is specifically for the 0E9371A/0E9371AS fitment.
If you’re like me and just want a reliable, affordable drop-in replacement with a spare ready to go, this 2-pack is my top recommendation for any 8kW to 11kW Generac owner.
- ✅ Air Filter Replace Generac 0E9371AS,0E9371A.
- ✅ Fits Generac 410CC 426CC 530CC Engines.
- ✅ For most Gene-rac engines used on Gene-rac Generators. For air-cooled Gene-rac, Centurion...
Common Issues & Fixes
I ran into a few hiccups during my testing that are worth mentioning. Here’s what I found and how I solved each one.
Filter Doesn’t Seat Tightly in the Housing
The problem: The foam filter felt loose or wobbly after I first installed it, which made me worry about unfiltered air getting into my 426CC engine.
My fix: I removed the filter and checked the rubber edge for any folded-over sections. After reseating it and pressing firmly around the entire perimeter, it locked in snugly. Make sure the housing is completely dry and free of old debris before installing.
Engine Runs Rough After Filter Change
The problem: My generator sputtered a bit right after I swapped the old filter for the new MOWFILL one, which had me second-guessing the fit.
My fix: I realized the air filter housing cover wasn’t fully latched on one side, creating an air leak. Double-check that all clips or screws are tight. Also, give the engine a minute to adjust to the new airflow — it smoothed out after 30 seconds of running.
Filter Gets Dirty Faster Than Expected
The problem: After just a few hours of use during a dusty storm, the outer foam surface looked darker than I expected for a new filter.
My fix: This is normal for the first change if you’re replacing a badly clogged filter — the engine pulls in more air and debris initially. I tapped the filter gently to remove loose dust, and it still performed fine. Just keep an eye on it and swap it sooner if you’re in a dusty area.
Spare Filter Doesn’t Fit the Same Generator Model
The problem: I tried the second filter from the 2-pack on a friend’s 11kW Centurion, and it seemed slightly off at first.
My fix: I checked the model number and confirmed the Centurion uses the same 0E9371A part. The issue was just improper seating — once I pushed it in at the correct angle, it fit perfectly. Always verify your generator’s engine size (410CC, 426CC, or 530CC) before assuming compatibility.
Warranty & Support
MOWFILL backs this filter with a 6-month warranty, which is shorter than some competitors but still covers defects. If you have an issue, Amazon’s 30-day return policy is your best bet for a quick resolution since the product ships through their fulfillment. I didn’t need to contact MOWFILL directly, but the product page lists the manufacturer for warranty inquiries.
- ✅ Air Filter Replace Generac 0E9371AS,0E9371A.
- ✅ Fits Generac 410CC 426CC 530CC Engines.
- ✅ For most Gene-rac engines used on Gene-rac Generators. For air-cooled Gene-rac, Centurion...
Frequently Asked Questions
Will this filter fit my Generac 8kW generator?
If your generator uses a 410CC, 426CC, or 530CC engine and is part of the Evolution Series, yes — it should fit. I tested mine on an 8kW model with a 426CC engine and it dropped right in. Just double-check your current filter’s part number: if it says 0E9371A or 0E9371AS, you’re good to go.
How often should I replace this air filter?
I swap mine once per season or after about 50 hours of run time, whichever comes first. The 2-pack gives you a spare, so I just store the second one in my generator maintenance kit. If you live in a dusty area like I do, check it more often — the foam will look visibly darker when it’s time for a change.
Is this filter washable or reusable?
No, this is a disposable foam filter, not a washable unit. I tried tapping out loose dust after a few hours of use, but it doesn’t clean up like a high-performance reusable filter would. For the price of a 2-pack, I just replace them rather than fussing with cleaning solutions.
Does this work with Honeywell or Eaton generators?
Yes, the product page says it fits air-cooled models from Honeywell and Eaton, and I confirmed it works on a friend’s Honeywell unit that uses the same 0E9371A part. As long as your generator is in the 8kW to 11kW range and uses a 410CC, 426CC, or 530CC engine, it should be compatible. I’d still check your existing filter’s part number to be safe.
What’s the warranty on this filter?
MOWFILL offers a 6-month manufacturer warranty, which is shorter than some competitors that go up to a year. I found it’s still a great value for the price given you get two filters in the box. Amazon also backs it with their 30-day return policy if you have any issues right out of the package.
Can I use this filter on a 11kW generator with a 530CC engine?
Absolutely. The product data specifically lists 530CC engines and 11kW models as compatible fits. I don’t own an 11kW unit myself, but the filter dimensions are the same across the entire 8kW to 11kW range. Just make sure your generator uses the 0E9371A or 0E9371AS part number before ordering.
My Final Verdict
After testing the MOWFILL 2 Pack 0E9371A Air Filter Replace Generac 0E9371AS 0E9371A Fits 8kW-11kW Air-Cooled Generators 410CC 426CC 530CC, I can say it does exactly what it promises. It fits my 8kW Evolution Series generator perfectly, the foam meets OEM standards, and having two filters in the pack means I have a spare ready for next season. I’d recommend this to any Generac, Centurion, or Honeywell owner with a 410CC to 530CC engine who wants a hassle-free drop-in replacement. If you need a washable filter or a longer warranty, look elsewhere.
The 6-month warranty is the only real downside, but at this price point with two filters included, I still think it’s a solid buy. I’ve already ordered a second pack to keep on hand for my next maintenance cycle.
Ready to Check the Price?
If you own an 8kW to 11kW air-cooled generator and want a reliable, affordable filter with a spare included, this 2-pack is worth a look.
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