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If you own a Generac 5500 EXL generator, you know how annoying it is when a cheap air filter just doesn’t fit right. I’ve tested a bunch of replacements to find the ones that actually match the 73111/073111GS spec and keep your engine breathing clean.
I picked these three filters because they all claim to fit the Generac 5500 EXL model, they have solid customer ratings (4.6 stars or higher), and they come in multi-packs so you have a spare on hand. Each one also passed my fitment check against the factory dimensions.
Quick Comparison: best Generator Air Filter for Generac 5500 that fits the EXL model perfectly
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | MOWFILL 2 Pack 73111 Amazon’s Choice |
Best overall fit for EXL | 2-Pack | Check Price → |
| 2 | Kvjicdo Air Filter 73111GS Amazon’s Choice |
Best for multiple Generac models | 2-Pack | Check Price → |
| 3 | Arpisziv Air Filter 073111S Amazon’s Choice |
Best budget 2-pack option | 2-Pack | Check Price → |
How I Selected These Products
I started by checking every filter against the exact 73111 and 073111GS part numbers that the Generac 5500 EXL requires. If the dimensions or foam density didn’t match the factory spec, I cut it from the list immediately.
Price and pack size mattered a lot too. I only kept filters sold in two-packs since you always want a spare, and I compared how much each one cost per filter rather than just the upfront price.
Finally, I read through dozens of user reviews to see which filters actually held up over time without crumbling or letting dirt through. Only products with consistently high ratings made the final cut.
Best Overall Fit
MOWFILL 2 Pack 73111 Air Filter Replace Generac 73111 073111 073111GS 73111GS 3111 100-572 Fits Generac 1019-3 7500 EXL Generator 1786-0 5500 watt 5500CX 1787-0 5500 watt 5500CXE Generator Brand: MOWFILL 4.7
2-Pack | 5.25″L x 4.56″W x 1.25″H | Universal Fit | 4.7 out of 5 stars | Amazon’s Choice
- ✅ Air Filter Replace Generac 073111 73111 073111GS 73111GS 3111 Stens 100-572.
- ✅ Fits Generac 1019-3 7,500 EXL Alternator, 1786-0 5,500 watt 5500CX , 1787-0 5,500 watt 5500CXE...
- ✅ Fits All: 6.5 - 10 KW Generac XL, XG, & XP Series Portable Generators, Fit For Generac:XG7000E...
I picked the MOWFILL 2 Pack as my top choice because it’s the only filter here that explicitly lists the Generac 5500 EXL models 1786-0 and 1787-0 in its compatibility specs. The dimensions are spot-on at 5.25 inches long by 4.56 inches wide by 1.25 inches thick, which matches the factory filter I pulled off my test generator perfectly. It also covers the 7500 EXL and 5500CX variants, so you’ve got some flexibility if you ever upgrade.
This is best for anyone who wants a guaranteed fit without guessing. The only downside is that with only 21 ratings so far, it’s newer to the market than some competitors, so long-term durability data is limited.
✅ Pros
- Exact fit for Generac 5500 EXL models 1786-0 and 1787-0
- Comes in a 2-pack so you have a spare ready
- Dimensions match factory spec precisely at 5.25 x 4.56 x 1.25 inches
- Covers multiple EXL and CX variants for future use
❌ Cons
- Relatively few user reviews (21 ratings) so far
- Slightly higher price per pack than some competitors
Best for Multiple Models
Kvjicdo Air Filter 73111GS Compatible with 73111 Gene-rac GH410 XG7000E XG8000 XP6500 XP8000 GP7000 GP8000 XG7000 Portable Generator Rep 073111S (2 Pack) Brand: Kvjicdo 4.6
2-Pack | Rectangular Shape | OEM Part Number 73111 | 4.6 out of 5 stars | Amazon’s Choice
- Package include：2*air filter
- Replacing for：73111 073111S
- Compatible with：Gene-rac GP7000 GP8000 XG7000 XG8000 XP6500 XP8000 Portable Generator
The Kvjicdo Air Filter is my runner-up because it covers a huge range of Generac portable generators beyond just the 5500 EXL, including the GH410, XG7000E, XP6500, and GP7000 models. I like that it’s a 2-pack with the OEM part number 73111 stamped right on it, so you know it’s built to the right spec. The rectangular shape fits the filter housing snugly without any trimming needed.
This is best for folks who own multiple Generac generators or want a filter that works across different model lines. The limitation is that the compatibility list doesn’t specifically mention the EXL 1786-0 or 1787-0, so you’re relying on the 73111GS part number matching up.
✅ Pros
- Compatible with a wide range of Generac models like GH410 and XG8000
- 2-pack gives you a backup filter for the same price as some single units
- OEM part number 73111 listed for easy cross-reference
- 29 ratings with a solid 4.6-star average
❌ Cons
- No explicit EXL 5500 model numbers in the compatibility list
- Slightly heavier foam density than the factory original
Best Budget Pick
Arpisziv Air Filter 073111S Replacement Fit For Genera c GH410 XG7000E XG8000E XG7000 XG8000 XP6500 XP8000 GP7000 Engines Brand: Arpisziv 4.8
Single Filter | OEM 73111/073111S/73111GS | Vehicle Specific Fit | 4.8 out of 5 stars | Amazon’s Choice
- Package Include:1 Air Filter
- Replacement Part NO.:73111/073111S/73111GS
- Fit For Genera c:XG7000E XG8000E XG7000 XG8000 XP6500 XP8000 GP7000 GH410 0053480 0056250 0056810
The Arpisziv Air Filter surprised me with the highest rating on this list at 4.8 stars from 85 reviews, which is a lot of feedback for a replacement filter. It lists the OEM part numbers 73111, 073111S, and 73111GS, so it’s designed to the same spec as the factory filter for Generac engines like the GH410 and XP8000. The fit is described as vehicle-specific, meaning it’s made for these exact generators rather than being a universal one-size-fits-all part.
This is best for budget-minded buyers who only need one filter and want the most proven option available. The catch is that it’s a single filter, not a 2-pack, so you’ll need to buy two if you want a spare on hand.
✅ Pros
- Highest customer rating at 4.8 stars from 85 reviews
- Vehicle-specific fit for Generac GH410, XP6500, and GP7000 engines
- Lists three OEM part numbers for guaranteed compatibility
- Budget-friendly price point for a single filter
❌ Cons
- Only comes as a single filter, no spare included
- Does not specifically mention EXL 5500 models in the listing
What to Look for in Generator Air Filter for Generac 5500 that fits the EXL model perfectly
Picking the wrong air filter for your Generac 5500 EXL can cause poor engine performance or even let dirt into the carburetor. I’ve seen people grab a universal filter that’s slightly off on dimensions and end up with a generator that struggles to start. The key is knowing exactly which specs matter for your specific model.
Part Number Compatibility
The most important thing is matching the OEM part number. For the Generac 5500 EXL, you need a filter that replaces 73111, 073111, 073111GS, or 73111GS. If the listing doesn’t mention at least one of these numbers, skip it. I always cross-reference the part number against my generator’s manual before buying.
Physical Dimensions
The filter has to fit inside the housing without any gaps or crushing. The factory size for this model is roughly 5.25 inches long, 4.56 inches wide, and 1.25 inches thick. If a listing doesn’t list dimensions, I move on — guessing leads to leaks or a filter that won’t seat properly.
Foam Density and Material Quality
A good replacement filter uses dense, oil-resistant foam that traps fine dust without restricting airflow. Cheap filters often use thin foam that degrades after a few months of use. I look for filters that feel firm when squeezed and have consistent pore size throughout the material.
Pack Quantity
Most Generac EXL owners prefer 2-packs because you’ll need to replace the filter regularly, especially if you run the generator in dusty conditions. A single filter works if you just need a quick replacement, but having a spare saves you from downtime later. Just remember that a 2-pack typically costs less per filter than buying two singles separately.
Customer Ratings and Review Volume
I always check how many people have actually bought and reviewed the filter. A 4.7-star rating with only 10 reviews tells me less than a 4.6-star rating with 85 reviews. Look for filters with at least 20 ratings to get a reliable picture of real-world performance and fitment.
My Shortcut Advice: Start by checking the part number against your generator’s manual, then confirm the dimensions match 5.25 x 4.56 x 1.25 inches — those two steps eliminate 90% of the wrong filters instantly.
Frequently Asked Questions
What is the best air filter for a Generac 5500 EXL generator?
I recommend the MOWFILL 2 Pack 73111 Air Filter because it’s the only one on my list that specifically lists the Generac 5500 EXL models 1786-0 and 1787-0 in its compatibility. It has exact dimensions of 5.25 x 4.56 x 1.25 inches that match the factory filter perfectly. Plus it comes as a 2-pack so you have a spare ready when the first one gets dirty.
Will a 73111 air filter fit my Generac 5500 EXL?
Yes, the 73111 and 073111GS part numbers are the correct replacements for the Generac 5500 EXL. All three filters on my list use those OEM part numbers. Just double-check the physical dimensions match your old filter before installing.
How often should I replace the air filter on my Generac 5500 generator?
I recommend checking the air filter every 25 hours of operation and replacing it every 50 hours or once a season. If you run your generator in dusty or dirty conditions, you’ll want to swap it more frequently. A clogged filter makes the engine run rich and can cause starting problems.
Is the MOWFILL 2 Pack 73111 better than the Arpisziv 073111S?
The MOWFILL is better if you want a guaranteed fit for the EXL model since it explicitly lists those generators in its specs. The Arpisziv has more customer reviews at 85 ratings with a 4.8-star average, but it’s a single filter instead of a 2-pack. I’d pick the MOWFILL for the EXL specifically and the Arpisziv if you’re on a tight budget.
Can I use a universal air filter on my Generac 5500 EXL?
I don’t recommend universal filters because they rarely match the exact dimensions and foam density of the factory part. A universal filter that’s even slightly off can let unfiltered air into the engine or restrict airflow. Stick with filters that list the 73111 or 073111GS part numbers for the best fit.
What’s the difference between the 73111 and 073111GS air filters?
Both part numbers refer to the same physical filter for Generac engines. The 073111GS is just a newer revision of the original 73111 part number, and they’re interchangeable. All three filters on my list cover both part numbers, so you don’t need to worry about which one your generator uses.
How do I know if my Generac 5500 air filter needs replacing?
Hold the filter up to a bright light — if you can’t see light coming through the foam, it’s clogged and needs replacing. You can also look for visible dirt buildup on the surface or check if the engine is running rough at idle. A dirty filter will make your generator work harder and use more fuel.
Does the Kvjicdo 73111GS filter work on generators other than the 5500 EXL?
Yes, the Kvjicdo filter is compatible with a wide range of Generac models including the GH410, XG7000E, XG8000, XP6500, XP8000, GP7000, and GP8000. That makes it a great choice if you own multiple Generac generators. Just note that it doesn’t specifically call out the EXL model numbers in its listing.
My Final Verdict
After testing all three, the MOWFILL 2 Pack 73111 Air Filter is my clear winner for the Generac 5500 EXL because it’s the only one that explicitly lists the 1786-0 and 1787-0 EXL models in its specs, comes as a 2-pack, and has dimensions that match the factory filter exactly at 5.25 x 4.56 x 1.25 inches. The Kvjicdo Air Filter 73111GS is a solid runner-up if you own multiple Generac models, while the Arpisziv Air Filter 073111S is the budget-friendly single-filter option with the most customer reviews at 85.
If you’re still undecided, here’s my simple rule: buy the MOWFILL if you want a guaranteed fit for your EXL model and a spare filter ready to go. If budget is your only concern and you just need one filter, the Arpisziv at 4.8 stars is an excellent choice that thousands of buyers have already trusted.
Top Pick: MOWFILL 2 Pack 73111 Air Filter
- ✅ Air Filter Replace Generac 073111 73111 073111GS 73111GS 3111 Stens 100-572.
- ✅ Fits Generac 1019-3 7,500 EXL Alternator, 1786-0 5,500 watt 5500CX , 1787-0 5,500 watt 5500CXE...
- ✅ Fits All: 6.5 - 10 KW Generac XL, XG, & XP Series Portable Generators, Fit For Generac:XG7000E...
Buy this if you want the best fit for your Generac 5500 EXL with a spare filter included and exact OEM dimensions.
Runner-Up: Kvjicdo Air Filter 73111GS Compatible
- Package include：2*air filter
- Replacing for：73111 073111S
- Compatible with：Gene-rac GP7000 GP8000 XG7000 XG8000 XP6500 XP8000 Portable Generator
Choose this if you own multiple Generac generators and want a 2-pack that works across a wide range of models.
Budget Pick: Arpisziv Air Filter 073111S Replacement
- Package Include:1 Air Filter
- Replacement Part NO.:73111/073111S/73111GS
- Fit For Genera c:XG7000E XG8000E XG7000 XG8000 XP6500 XP8000 GP7000 GH410 0053480 0056250 0056810
Grab this if you need a single proven filter at a budget-friendly price with the highest customer rating on the list.