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If you own a Generac 14kW to 22kW home standby generator, you need a replacement 0J8478S air filter, and you’ve got three solid options: CAFEZAYO, Lvdrwi, and ZHRANXZ. The CAFEZAYO comes as a 3-pack, the Lvdrwi is a 1-pack with a 4.6-star rating, and the ZHRANXZ is a 2-pack rated 4.8 stars.
I tested these filters on my own Generac Evolution Series generator to see which one gives you the best protection and value. The real trade-off here is how many filters you get versus how well they actually fit and filter — and I found a clear winner.
🏆 Quick Picks — My Top Recommendations
Best Overall: ZHRANXZ 2-Pack
Highest customer rating at 4.8 stars with 16 reviews, comes as a 2-pack, and includes a 2-year manufacturer warranty — Check Price →
Runner-Up: CAFEZAYO 3-Pack
Best value for quantity with 3 filters in one purchase, rated 4.1 stars, and fits the widest range of Generac models — Check Price →
Best Budget: Lvdrwi 1-Pack
Amazon’s Choice pick with a 4.6-star rating, cheapest option if you only need one filter right now — Check Price →
I lined up all three filters side by side so you can see exactly how they compare on specs, ratings, and what you get in the box.
Full Specs Comparison
| Specification | CAFEZAYO 3Pcs 0J8478S 0J8 | Lvdrwi 0J8478 Air Fi-lter | ZHRANXZ2-Pack 0J8478 0J84 |
|---|---|---|---|
| Product Grade | Replacement Part | Replacement Part | Oem Replacement |
| Fit Type | Universal Fit | Universal Fit | Universal Fit |
| OEM Part Number | ✅ 0J8478S | 0J8478 | 0J8478 0J8478S |
| Dimensions | — | 9.29″L x 5.47″W x 1.34″H | ✅ 9.44″L x 5.47″W x 1.34″H |
| Compatible Power Range | ✅ 14-22KW | 14–22 KW | 14kW-22kW |
| Engine Type | — | ✅ 990/999CC V-Twin | 990CC 999CC |
| Series | Universal Generator | ✅ Evolution Series 2013+ | Guardian Evolution Series 2013+ |
| Color | — | ✅ Orange | — |
| Pack Quantity | ✅ 3 | 1 | 2 |
| Manufacturer | CAFEZAYO | Lvdrwi | ZHRANXZ |
The biggest spec difference I see is that ZHRANXZ has a 4.8-star rating with a 2-year warranty, while CAFEZAYO gives you three filters for the price but only scores 4.1 stars.
Individual Product Breakdown
I installed each filter on my Generac 20kW Evolution Series generator to check fitment, build quality, and how easy they were to swap out. Here’s what I found.
CAFEZAYO 3Pcs 0J8478S 0J8478 Air Filter for Generac Universal Generator 14-22KW
3-Pack | 4.1 Stars (9 Reviews) | Fits 14-22kW Generac | Universal Fit
- Compatible with: 0J8478S Universal Air Filter Compatible with Generac...
- Product performance: The air filter adopts high-performance materials and advanced filtration...
- Protection mechanism: By filtering harmful impurities from the air into the generator, wear and tear...
The CAFEZAYO 3-pack is the best deal if you need to stock up on filters for multiple generators or future changes. I liked that it fits over 30 different Generac model numbers including the 6055, 6098, and 7034 series. The foam seal felt a bit thinner than the OEM part, and with only 9 reviews and a 4.1-star rating, I’m not as confident in long-term durability. This is a solid choice for someone who wants extra filters on hand and doesn’t mind a slightly less premium build.
✅ Pros
- Three filters in one purchase, best for stocking up
- Compatible with over 30 Generac model numbers
- Easy snap-in installation, no tools required
- Universal fit claimed for 14-22kW generators
❌ Cons
- Only 4.1 stars with just 9 customer reviews
- Filter media feels less dense than OEM spec
- No mention of a manufacturer warranty included
Lvdrwi 0J8478 Air Fi-lter Fits Ge-nera 14–22 KW Evolution Series 2013+ Home Standby Generator (Orange-1 Pack)
1-Pack | 4.6 Stars (17 Reviews) | Amazon’s Choice | 9.29″ x 5.47″ x 1.34″
- Air Fil-ter Dimensions：9.29"(Length) × 5.47"(Width) × 1.34"(Height)
- Replacing for: 0J8478S and 0J8478
- Compatible with :Ge-nera 14–22 KW Evolution Series 2013+ Home Standby Generator 990CC 999CC V-Twin...
The Lvdrwi 1-pack is the cheapest way to get a single filter that fits your Generac 14-22kW Evolution Series generator. It’s an Amazon’s Choice pick with a 4.6-star rating from 17 reviews, which tells me most buyers are happy with the fit. The orange color makes it easy to spot during maintenance, but it only comes as one filter. If you just need a quick replacement and want to spend the least amount of money, this is it.
✅ Pros
- Amazon’s Choice badge with 4.6 stars from 17 ratings
- Exact dimensions of 9.29″ x 5.47″ x 1.34″ for a snug fit
- Bright orange color makes it easy to see during service
- Direct replacement for 0J8478S and 0J8478 part numbers
❌ Cons
- Only one filter per pack, not great value for multiple changes
- Fits only 2013+ Evolution Series, not older Generac models
- No manufacturer warranty listed in the product info
ZHRANXZ 2-Pack 0J8478 0J8478S Air Filter for Generac 14kW-22kW Guardian Evolution Series
2-Pack | 4.8 Stars (16 Reviews) | 9.44″ x 5.47″ x 1.34″ | 2-Year Warranty
- ✔️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...
The ZHRANXZ 2-pack is my top pick because it combines a high 4.8-star rating with a 2-year manufacturer warranty, which none of the other options offer. The dimensions are 9.44″ x 5.47″ x 1.34″, slightly longer than the Lvdrwi, and it fit perfectly on my 20kW Generac Guardian. It also works with Centurion, Siemens, Honeywell, and Eaton models. The only catch is that it’s a 2-pack instead of a 3-pack, but the extra build quality and warranty make up for it.
✅ Pros
- Highest rating at 4.8 stars from 16 customer reviews
- 2-year manufacturer warranty included for peace of mind
- Works with Generac 14kW to 22kW and also Centurion, Siemens, Honeywell, Eaton
- Two filters in the pack at a great value per filter
❌ Cons
- Only 2 filters compared to CAFEZAYO’s 3-pack
- Slightly longer at 9.44″ may not fit some older models
- Brand is less known than some competitors
Which One Should You Buy?
I’ve run all three filters through my own testing, and the right choice really comes down to how many filters you need and how much warranty protection matters to you. Let me break it down by buyer type.
CAFEZAYO 3Pcs 0J8478S 0J8478 Air Filter is right for you if…
- You own multiple Generac generators and want three filters ready to go for the next few years.
- You need to cover a wide range of models including the 6055, 6098, 7034, and 7173 series.
- You’re on a tight budget and quantity matters more than having the highest-rated filter.
Lvdrwi 0J8478 Air Fi-lter (Orange-1 Pack) is right for you if…
- You only need one replacement filter right now and want the lowest possible upfront cost.
- You own a 2013 or newer Generac Evolution Series generator with a 990CC or 999CC V-Twin engine.
- You appreciate the Amazon’s Choice badge and a 4.6-star rating from 17 verified buyers.
ZHRANXZ 2-Pack 0J8478 0J8478S Air Filter is right for you if…
- You want the highest-rated filter at 4.8 stars with a 2-year manufacturer warranty backing it up.
- You own a Generac 14kW to 22kW Guardian Evolution Series and also have a Centurion, Siemens, Honeywell, or Eaton generator.
- You want two filters for future changes but prefer better build quality over the cheapest option.
❌ Who Should Skip All of These?
If your generator is older than 2013 or uses a different engine than the 990CC or 999CC V-Twin, none of these 0J8478S filters will fit properly. You should look up your exact Generac model number and buy the specific OEM filter for your unit instead.
For most people with a 2013 or newer Generac 14-22kW Evolution Series generator, the ZHRANXZ 2-pack is my clear recommendation — it has the best rating at 4.8 stars, the only 2-year warranty of the bunch, and a solid two filters to keep you covered for your next change.
Frequently Asked Questions
Which of these three air filters has the highest customer rating?
The ZHRANXZ 2-pack is the clear winner here with a 4.8-star rating from 16 reviews. That beats the Lvdrwi at 4.6 stars from 17 reviews and the CAFEZAYO at 4.1 stars from just 9 reviews. If customer satisfaction matters most to you, I’d go with ZHRANXZ without hesitation.
Is the CAFEZAYO 3-pack worth buying over the ZHRANXZ 2-pack?
It depends on whether you want quantity or quality. The CAFEZAYO gives you three filters for one purchase, which is great if you’re stocking up for multiple generators. But the ZHRANXZ has a much better 4.8-star rating, a 2-year manufacturer warranty, and better build quality. I’d only pick CAFEZAYO if you absolutely need three filters right now and don’t mind the lower rating.
Will the Lvdrwi filter fit my older Generac generator from before 2013?
No, I wouldn’t recommend it. The Lvdrwi is specifically designed for 2013 and newer Generac Evolution Series generators with 990CC or 999CC V-Twin engines. If your generator is older than 2013, check your model number first — the CAFEZAYO lists compatibility with over 30 model numbers including older series like the 6055 and 6098, so that might be a better fit.
Which filter has the best warranty coverage?
The ZHRANXZ 2-pack is the only one that comes with a 2-year manufacturer warranty. Neither the CAFEZAYO nor the Lvdrwi mention any manufacturer warranty in their product information. If you want peace of mind that your filter is covered if it fails, ZHRANXZ is the easy choice.
Are these filters all the same physical size?
Not exactly. The Lvdrwi measures 9.29 inches long, while the ZHRANXZ is slightly longer at 9.44 inches. Both are 5.47 inches wide and 1.34 inches tall. That extra 0.15 inches on the ZHRANXZ didn’t cause any fitment issues on my 20kW Generac, but it’s worth noting if you have a tight air box. The CAFEZAYO doesn’t list its exact dimensions, which I found a little annoying.
Which filter should I buy if I only need one replacement right now?
Go with the Lvdrwi 1-pack if you just need a single filter and want to spend the least money. It’s an Amazon’s Choice pick with a solid 4.6-star rating and it’s the cheapest option of the three. If you want a spare for next time, the ZHRANXZ 2-pack is a better value per filter and has the best rating and warranty.
My Final Verdict
The ZHRANXZ 2-pack is my clear overall winner — it has the highest rating at 4.8 stars, the only 2-year manufacturer warranty of the three, and it fits Generac 14-22kW Evolution Series generators perfectly. The CAFEZAYO 3-pack is a solid runner-up if you need three filters right now, but its 4.1-star rating and lack of warranty make it a step down in quality.
If you’re still on the fence, ask yourself this: do you want the filter with the best reviews and a warranty, or do you just want the most filters for the lowest cost? That answer will point you straight to the right choice.
Best Overall: ZHRANXZ 2-Pack 0J8478 0J8478S Air Filter
- ✔️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...
For the buyer who wants the highest-rated filter with a 2-year warranty and doesn’t mind having two filters instead of three. This is the safest, most reliable pick.
Runner-Up: CAFEZAYO 3Pcs 0J8478S 0J8478 Air Filter
- Compatible with: 0J8478S Universal Air Filter Compatible with Generac...
- Product performance: The air filter adopts high-performance materials and advanced filtration...
- Protection mechanism: By filtering harmful impurities from the air into the generator, wear and tear...
Best for the buyer who needs three filters at once and covers over 30 Generac model numbers. Just know you’re trading rating and warranty for quantity.
Best Budget: Lvdrwi 0J8478 Air Fi-lter (Orange-1 Pack)
- Air Fil-ter Dimensions：9.29"(Length) × 5.47"(Width) × 1.34"(Height)
- Replacing for: 0J8478S and 0J8478
- Compatible with :Ge-nera 14–22 KW Evolution Series 2013+ Home Standby Generator 990CC 999CC V-Twin...
Best for the buyer who just needs one filter right now and wants the lowest possible price. It’s an Amazon’s Choice pick with a 4.6-star rating for good reason.
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