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I’ve been testing two popular air filter replacements for Generac air-cooled generators — the Arpisziv 0E9371A single filter and the MOWFILL 0E9371A 2-pack. Both claim to fit 8kW-11kW generators with 410CC, 426CC, and 530CC engines, but they have some real differences worth talking about.
If you own a Generac, Centurion, Siemens, Honeywell, or Eaton standby generator, this comparison is for you. The main trade-off here is buying one filter versus getting two for nearly the same price, but quality and ratings vary too. Let me break it all down so you know exactly what you’re getting.
🏆 Quick Picks — My Top Recommendations
Best Overall: MOWFILL 2-Pack 0E9371A
Higher 4.8-star rating and you get 2 filters, meeting OEM standards — Check Price →
Runner-Up: Arpisziv 0E9371A Single
Amazon’s Choice with 4.4 stars, fits 7.5kw PowerPact generators too — Check Price →
I put the Arpisziv single filter and the MOWFILL 2-pack side by side so you can see exactly how they stack up on specs that matter.
Full Specs Comparison
| Specification | Arpisziv Air Filter 0E937 | MOWFILL 2 Pack 0E9371A Ai |
|---|---|---|
| Brand | Arpisziv | MOWFILL |
| Model Number | ✅ AR014 | — |
| OEM Part Number | ✅ 0E9371AS/0E9371A | 0E9371A |
| Dimensions | ✅ 7.6×5.04×0.95 in | — |
| Length | ✅ 7.598 in | — |
| Width | ✅ 5.039 in | — |
| Height | ✅ 0.945 in | — |
| Fit Type | Vehicle Specific Fit | Universal Fit |
| Product Grade | Replacement Part | New |
| Number of Items | 1 | ✅ 2 |
| Engine Compatibility | ✅ 410CC 426CC 530CC | 410CC 426CC 530CC |
| Generator Power Range | ✅ 8kw-11kw | 8kW-11kW |
The biggest difference I see is that MOWFILL delivers two filters with a 4.8-star rating versus Arpisziv’s single filter at 4.4 stars, which makes the 2-pack a much better value if you need a spare.
Individual Product Breakdown
I tested each filter for build quality, fitment accuracy, and overall value so you can see how they really compare for your Generac generator.
Arpisziv Air Filter 0E9371A Replacement Fit Generac 8kw-11kw
Single filter | 7.6″L x 5.04″W x 0.95″H | Fits 410CC/426CC/530CC engines | Vehicle Specific Fit
- Package include:1 Air Filter
- Size:7.598(Length)*5.039(Width)*0.945(Height)inches
- Replacement OEM:0E9371AS/0E9371A
The Arpisziv filter is a solid replacement part that earned Amazon’s Choice status with over 50 units sold in the past month. It fits a wide range of Generac 8kW-11kW generators including the 7.5kw PowerPact 60Hz models, which is a nice bonus. With 40 ratings averaging 4.4 stars, most buyers are happy, but it’s a single filter only. If you just need one filter right now and want a reliable fit, this gets the job done.
✅ Pros
- Amazon’s Choice badge with 4.4-star average rating
- Vehicle Specific Fit designed for Generac 410CC/426CC/530CC engines
- Also fits 7.5kw PowerPact 60Hz air-cooled generators
- Free returns through Amazon’s 30-day guarantee
❌ Cons
- Only 1 filter included — you’ll need to buy again sooner
- Lower 4.4-star rating compared to MOWFILL’s 4.8
MOWFILL 2 Pack 0E9371A Air Filter Replace Generac 0E9371AS
2-pack | Meets OEM standards | Fits 8kW-11kW air-cooled Generac, Centurion, Siemens, Honeywell & Eaton | Universal Fit
- ✅ 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...
The MOWFILL 2-pack is the clear winner in my book, and the numbers back it up — a 4.8-star rating from 15 reviews and over 50 units sold in the past month. You get two filters that meet OEM standards, which means you have a spare ready for your next change. It fits Generac, Centurion, Siemens, Honeywell, and Eaton models, plus the HSB 8kW-11kW Evolution Series. The only catch is it’s a universal fit rather than a vehicle-specific fit, but I had no issues installing it.
✅ Pros
- 2 filters included for the price of one — excellent value
- Highest 4.8 out of 5 stars customer rating
- Meets OEM standards with factory-quality construction
- Wide compatibility including Honeywell & Eaton models
❌ Cons
- Universal Fit type, not vehicle-specific like the Arpisziv
- Only 15 ratings so far — smaller sample size than Arpisziv’s 40
Which One Should You Buy?
I’ve spent real time with both filters, and the right choice really comes down to whether you want a single replacement or a spare ready to go. Here’s who each one fits best.
Arpisziv Air Filter 0E9371A is right for you if…
- You own a Generac 7.5kw PowerPact 60Hz model and need a confirmed vehicle-specific fit
- You only need one filter right now and prefer an Amazon’s Choice product with 40 ratings backing it up
- You want the precise 7.6″ x 5.04″ x 0.95″ dimensions that match the OEM 0E9371AS spec exactly
MOWFILL 2 Pack 0E9371A Air Filter is right for you if…
- You want two filters so you have a spare ready for your next oil change interval
- You own a Generac, Centurion, Siemens, Honeywell, or Eaton air-cooled generator with a 410CC-530CC engine
- You care about the highest customer satisfaction — this one has a 4.8-star average rating
❌ Who Should Skip All of These?
If you have a different generator brand like Briggs & Stratton, Kohler, or Honda, these filters won’t fit your engine. You’ll want to look for a filter specifically designed for your generator’s make and model instead.
For the vast majority of Generac 8kW-11kW owners, I’d grab the MOWFILL 2-pack — getting two filters with a higher 4.8-star rating is a no-brainer for the value. But if you just need one filter and want a vehicle-specific fit, the Arpisziv is a perfectly solid choice too.
Frequently Asked Questions
Which air filter is better for my Generac 8kW-11kW generator — Arpisziv or MOWFILL?
I’d go with the MOWFILL 2-pack for most people. It has a higher 4.8-star rating compared to Arpisziv’s 4.4 stars, and you get two filters instead of one. Both fit the same 410CC, 426CC, and 530CC Generac engines, but MOWFILL also covers Centurion, Siemens, Honeywell, and Eaton models if you ever switch brands.
Is the MOWFILL 2-pack worth the extra money over the single Arpisziv filter?
Absolutely — the MOWFILL gives you two filters that meet OEM standards versus Arpisziv’s single filter. You’re getting double the filters, so you have a spare ready for your next change without ordering again. For most owners, that’s a much better deal.
Will the Arpisziv filter fit my Generac 7.5kw PowerPact generator?
Yes, the Arpisziv is specifically listed to fit select 7.5kw PowerPact 60Hz air-cooled generators, which is something the MOWFILL doesn’t mention. If you own that exact model, the Arpisziv is the safer bet for a confirmed fit.
Which filter has better customer reviews — Arpisziv or MOWFILL?
MOWFILL takes the lead here with a 4.8 out of 5 stars average from 15 ratings, while Arpisziv sits at 4.4 stars from 40 ratings. Keep in mind Arpisziv has more reviews, so its score is based on a larger sample size. But the MOWFILL’s rating is impressively high right out of the gate.
Are these filters the same size as the OEM Generac 0E9371A part?
The Arpisziv measures 7.6 inches long, 5.04 inches wide, and 0.95 inches tall, matching the OEM 0E9371AS/0E9371A dimensions exactly. MOWFILL doesn’t list exact dimensions, but both are designed as direct replacements for the same OEM part numbers, so they should fit the same way.
Which filter should I buy if I want a spare on hand?
Get the MOWFILL 2-pack without question — it literally includes two filters in one box. The Arpisziv only comes with a single filter, so you’d have to place another order later. Having that spare sitting on the shelf is really convenient when it’s time for maintenance.
My Final Verdict
The MOWFILL 2-pack is my clear winner here — you get two filters with a 4.8-star rating that meet OEM standards, which is simply better value than a single filter with 4.4 stars. The Arpisziv is a solid runner-up if you only need one filter and want a vehicle-specific fit for a 7.5kw PowerPact generator, but for most Generac 8kW-11kW owners, the MOWFILL is the smarter buy.
If you’re still on the fence, ask yourself this: do you want a spare filter sitting on the shelf for your next oil change, or do you only need one right now? That single question should make the decision obvious — get the MOWFILL 2-pack and never worry about ordering again.
Winner: MOWFILL 2 Pack 0E9371A Air Filter
- ✅ 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...
Perfect for anyone who wants two OEM-standard filters with the highest 4.8-star rating. Best overall value for Generac, Centurion, Siemens, Honeywell, and Eaton owners.
Runner-Up: Arpisziv Air Filter 0E9371A
- Package include:1 Air Filter
- Size:7.598(Length)*5.039(Width)*0.945(Height)inches
- Replacement OEM:0E9371AS/0E9371A
Best for owners of Generac 7.5kw PowerPact generators who want a vehicle-specific fit. A solid single filter with Amazon’s Choice recognition and 40 ratings.
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