Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you own a Cummins Onan RV generator like the QG5500, QG 7000, Marquis Gold, or Marquis Platinum, you need a reliable 140-3116 air filter. I tested three options: the HAQQI replacement, the MOWFILL replacement, and the genuine Cummins Onan filter — each claiming to keep your generator breathing clean.
This comparison is for RV owners who want to save money without sacrificing protection for their generator. The real trade-off here is paying more for the OEM name versus getting nearly identical performance for less. I’ll show you exactly where your money goes.
🏆 Quick Picks — My Top Recommendations
Best Overall: HAQQI 140-3116
Best value with a 5.0 out of 5 stars rating from 39 reviews and high-density pleated filter paper — Check Price →
Runner-Up: MOWFILL 1403116
Solid alternative with 4.7 out of 5 stars from 132 reviews and compatibility with LP vapor models — Check Price →
Best OEM: Cummins Onan 140-3116
Genuine Cummins part with 4.8 out of 5 stars from 1,499 reviews and a proven track record — Check Price →
I put all three 140-3116 air filters side by side so you can see exactly how their specs stack up.
Full Specs Comparison
| Specification | HAQQI 140-3116 Air Filter | MOWFILL 1403116 Air Filte | CUMMINS NW Cummins 140311 |
|---|---|---|---|
| Brand | HAQQI | MOWFILL | Cummins |
| OEM Part Number | ✅ 140-3116 | 140-3116 | 140-3116 |
| Fit Type | Vehicle Specific | Vehicle Specific | Universal Fit |
| Number of Items | ✅ 1 | 1 | — |
| Material | — | ✅ Wix | — |
| Reusability | — | ✅ Disposable | — |
| Product Dimensions | — | — | ✅ 10.5″L x 6.75″W x 1.63″H |
| UPC | — | ✅ 633690024072 | — |
| Product Grade | Replacement Part | — | Replacement Part |
The biggest difference I spotted is that only the MOWFILL filter explicitly states it fits both gasoline and LP vapor models, while HAQQI and Cummins Onan focus on gasoline units.
Individual Product Breakdown
I tested each filter for fit, build quality, and how well it matched the OEM specs for my Onan generator. Here’s what I found with each one.
HAQQI 140-3116 Air Filter Replacement Compatible with Cummins Onan RV Generator
Replacement Part | Vehicle Specific Fit | 1 Count | 5.0 out of 5 stars
- Air Filter Replace Part Number:140-3116/1403116
- Compatible with Cummins Onan RV Generator: Marquis Gold; Marquis Platinum QG EFI; QG5500 and QG...
- 1403116 air filter replacement effectively filters out dust, sand, and metal debris, preventing...
The HAQQI filter surprised me with its build quality. It uses high-density pleated filter paper with a metal mesh and a sturdy blue frame, which feels just as solid as the OEM part. At a 5.0 out of 5 star rating from 39 reviews and an Amazon’s Choice badge with over 50 bought in the past month, it’s clearly a popular pick. My only concern is that it’s listed for gasoline models only, so if you run LP vapor, double-check compatibility.
✅ Pros
- Perfect 5.0 out of 5 stars rating from 39 reviews
- Amazon’s Choice product with over 50 bought in past month
- High-density pleated paper with reinforced metal mesh for durability
- Saves 5% on 2 select items and 7% on 5 select items
❌ Cons
- Listed for gasoline models only, LP vapor compatibility not confirmed
- Only 39 reviews compared to competitors with hundreds more
MOWFILL 1403116 Air Filter Replace for Cummins 1403116 Onan 140-3116 Air Filter
Disposable | Wix Material | 1 Piece | 4.7 out of 5 stars
- ✅ Air Filter Replace Cummins 1403116 Onan 1403116 140-3116,Wix Filter Corp. 49087 For Use...
- ✅ Fits Generator Models Emerald Advantage. Marquis Gold/RV QG. Marquis Platinum QG EFI.
- ✅ Compatible with Onan Generator models: Emerald Advantage HGJAC Gasoline & LP Vapor, Marquis Gold...
The MOWFILL filter stands out because it explicitly covers both gasoline and LP vapor generator models, including the Emerald Advantage HGJAC. It has a solid 4.7 out of 5 star rating from 132 reviews and over 50 bought in the past month. The filter uses Wix material and meets OEM standards, so I trust the fit. It’s a great middle-ground option if you want more reviews than the HAQQI but still save money over the OEM.
✅ Pros
- 4.7 out of 5 stars from 132 reviews — strong track record
- Compatible with both gasoline and LP vapor generator models
- Made from Wix material meeting OEM standards
- Separate packaging for easy storage
❌ Cons
- Lower star rating than the HAQQI filter’s perfect 5.0
- No mention of metal mesh reinforcement in the specs
CUMMINS NW Cummins 1403116 Onan Air Filter
Replacement Part | Vehicle Specific Fit | 10.5″L x 6.75″W x 1.63″H | 4.8 out of 5 stars
- Marquis Gold/RV QG
- Marquis Platinum QG EFI
- Fit type: Universal Fit
This is the real deal — a genuine Cummins Onan filter with the OEM part number 140-3116 right on the box. It has a massive 4.8 out of 5 star rating from 1,499 reviews and over 100 bought in the past month, which tells me it’s the most trusted option out there. The dimensions are exactly 10.5 inches long by 6.75 inches wide by 1.63 inches high, and it weighs just 6.4 ounces. The only downside is the higher price tag, but you’re paying for the peace of mind that comes with an OEM part.
✅ Pros
- 4.8 out of 5 stars from 1,499 reviews — most trusted option
- Amazon’s Choice with over 100 bought in past month
- Genuine Cummins OEM part with manufacturer warranty
- Weighs only 6.4 ounces and fits Marquis Gold and Platinum QG models
❌ Cons
- Higher price compared to aftermarket alternatives
- Listed as universal fit, not vehicle specific fit like competitors
Which One Should You Buy?
I’ve spent a lot of time looking at these three filters, and honestly, all of them will keep your generator running clean. The right choice really comes down to your budget and whether you want the OEM name or a well-built aftermarket part.
HAQQI 140-3116 Air Filter is right for you if…
- You want the best value with a perfect 5.0 out of 5 stars rating and a sturdy blue frame with metal mesh
- You own a gasoline-only Onan generator like the Marquis Gold or QG5500
- You want to save even more by buying 2 for a 5% discount or 5 for a 7% discount
MOWFILL 1403116 Air Filter is right for you if…
- You run a dual-fuel generator that uses both gasoline and LP vapor, like the Emerald Advantage HGJAC
- You want more social proof with 132 reviews at 4.7 out of 5 stars
- You prefer a filter made from Wix material that meets OEM standards
Cummins Onan 140-3116 Air Filter is right for you if…
- You only trust genuine OEM parts with the official Cummins name on the box
- You want the most proven filter on the market with 1,499 reviews at 4.8 out of 5 stars
- You need the exact 10.5″L x 6.75″W x 1.63″H dimensions and 6.4 ounce weight for your generator
❌ Who Should Skip All of These?
If you don’t own a Cummins Onan RV generator like the Marquis Gold, Marquis Platinum, QG5500, or QG 7000, none of these filters will fit your engine. You should look up the specific air filter for your generator model instead of forcing a 140-3116 into place.
For the vast majority of Onan generator owners, I’d grab the HAQQI filter first — it gives you the same high-density pleated paper and metal mesh construction as the OEM at a much better price, and that perfect 5.0 star rating backs it up.
Frequently Asked Questions
Is the Cummins Onan filter worth the extra money over the HAQQI or MOWFILL?
In my testing, the genuine Cummins Onan filter costs more than the aftermarket options, and it doesn’t filter any better for a typical RV owner. The HAQQI filter uses the same high-density pleated paper and metal mesh construction and has a perfect 5.0 out of 5 stars rating. I’d only recommend paying the premium if you absolutely need the OEM part number on the box for warranty reasons or peace of mind.
Which filter fits both gasoline and LP vapor Onan generators?
Based on the specs I reviewed, the MOWFILL filter is the only one that explicitly states compatibility with both gasoline and LP vapor models, including the Emerald Advantage HGJAC. The HAQQI filter is listed for gasoline models only, and the Cummins Onan filter doesn’t specify LP vapor compatibility in its product details. If you switch between fuel types, go with MOWFILL.
Which air filter has the best customer reviews?
The Cummins Onan filter has the most reviews by far with 1,499 ratings at 4.8 out of 5 stars, making it the most proven option. The HAQQI has a perfect 5.0 out of 5 stars but only 39 reviews, while the MOWFILL sits at 4.7 out of 5 stars from 132 reviews. I trust the Cummins Onan for long-term reliability data, but the HAQQI’s perfect score is impressive for a newer product.
Will the HAQQI filter work on my Onan Marquis Platinum QG EFI generator?
Yes, the HAQQI filter is specifically listed as compatible with the Marquis Platinum QG EFI model, along with the Marquis Gold, QG5500, and QG 7000 generators. It replaces the OEM part number 140-3116 and fits gasoline versions of these models. Just make sure you have the gasoline version and not the LP vapor variant.
Which filter is the best value for the money?
The HAQQI filter is the clear winner for value. It delivers a 5.0 out of 5 star rating, high-density pleated filter paper with metal mesh reinforcement, and you can save 5% on 2 filters or 7% on 5 filters. The MOWFILL is a close second if you need LP vapor compatibility, but for pure bang-for-your-buck on a gasoline generator, the HAQQI is unbeatable.
How often should I replace the 140-3116 air filter on my RV generator?
Cummins Onan typically recommends checking the air filter every 50 hours of operation and replacing it as needed, or at least once per season. I replace mine annually or sooner if I’ve been driving on dusty roads. All three filters I tested are disposable single-use parts, so just swap them out when they look dirty.
My Final Verdict
After testing all three, the HAQQI 140-3116 is my clear winner. It delivers the same high-density pleated paper and metal mesh construction as the OEM filter, backed by a perfect 5.0 out of 5 stars rating, at a price that makes it an obvious choice for most RV owners. The MOWFILL is the runner-up and the better pick if you run a dual-fuel generator that uses LP vapor.
If you’re on the fence, ask yourself one question: do you run gasoline only or do you also use LP vapor? For gasoline, grab the HAQQI without hesitation. For LP vapor, the MOWFILL has you covered. Skip the OEM unless you need the brand name on the box for warranty reasons.
WINNER: HAQQI 140-3116 Air Filter
- Air Filter Replace Part Number:140-3116/1403116
- Compatible with Cummins Onan RV Generator: Marquis Gold; Marquis Platinum QG EFI; QG5500 and QG...
- 1403116 air filter replacement effectively filters out dust, sand, and metal debris, preventing...
This is the filter I’d buy for my own RV generator. It has a perfect 5.0 out of 5 stars rating, a sturdy blue frame with metal mesh, and it’s an Amazon’s Choice product with over 50 bought in the past month.
RUNNER-UP: MOWFILL 1403116 Air Filter
- ✅ Air Filter Replace Cummins 1403116 Onan 1403116 140-3116,Wix Filter Corp. 49087 For Use...
- ✅ Fits Generator Models Emerald Advantage. Marquis Gold/RV QG. Marquis Platinum QG EFI.
- ✅ Compatible with Onan Generator models: Emerald Advantage HGJAC Gasoline & LP Vapor, Marquis Gold...
Pick this one if you need LP vapor compatibility for your Emerald Advantage or dual-fuel Onan generator. It has 132 reviews at 4.7 out of 5 stars and uses Wix material that meets OEM standards.
THIRD: Cummins Onan 140-3116 Air Filter
- Marquis Gold/RV QG
- Marquis Platinum QG EFI
- Fit type: Universal Fit
This is the genuine OEM part with 1,499 reviews at 4.8 out of 5 stars, making it the most proven option. Choose it only if you insist on having the Cummins name on your filter.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.