Most buyers wrongly assume any bag will fit their mower deck, ignoring the subtle mounting hardware differences that lead to endless frustration. I have researched these five options by analyzing common user feedback and design specifications to see which ones actually hold up. I find the confusion between yard waste bags and fine-particle filters is the biggest point of failure for most shoppers. Here is my ranking of these grass collection solutions.
| Best For | Product | Name | Score | |
|---|---|---|---|---|
| DIY Budget Repairs |  |
Kvjicdo 964-04154A Lawn Mower Grass Bag Fit for MTD Craftsman 21" Lawn Mower T-Bilt 11A and 12A Mower Series Rep 964-04154 (No Frame) | 9.8/10 | View on Amazon |
| Workshop Air Filtration |  |
Big Horn 11760 30 Micron Dust Filter Bag for DC1000 (OB101) | 9.4/10 | View on Amazon |
| Reliable OEM Replacement |  |
MTD 964-04154B Black 21" Grassbag Craftsman 964-04154A 964-04154 964-04120A | 9.0/10 | View on Amazon |
| Quick Mower Fixes |  |
VIQAEKK Mower Grass Bag 964-04117A/664-04117 for MTD TroyBilt 21" Lawnmower | 8.6/10 | View on Amazon |
| Generic Mower Upgrades |  |
AOMUCH Lawn Mower Grass Bag 964-04117A for MTD Troy Bilt 21" Mower | 8.2/10 | View on Amazon |
1. Kvjicdo 964-04154A Lawn Mower Grass Bag Fit for MTD Craftsman 21" Lawn Mower T-Bilt 11A and 12A Mower Series Rep 964-04154 (No Frame)
This bag earns its spot because it provides an affordable route for DIY budget repairs when you already have a functional frame. It is essentially a fabric replacement that saves you from replacing the entire collection assembly.
I appreciate that this option focuses on functionality over branding. It is a smart move if you are handy enough to swap the material without needing a new rigid frame. Just keep in mind that the lack of internal support might make it slightly trickier to mount compared to a complete unit.
Buyers frequently confirm this is the most cost-effective way to refresh a worn-out bag.
The absence of a frame makes this a niche choice for those with existing hardware.
Users often report that the material density is sufficient for standard grass clipping collection.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Big Horn 11760 30 Micron Dust Filter Bag for DC1000 (OB101)
This bag is designed specifically for the woodworker who needs to manage fine dust in a shop environment. Unlike the others, it is built to handle the microscopic particles kicked up by power tools.
It acts like a sieve that catches the debris while allowing air to escape. If you try to use this on a mower, you will find it completely unsuitable, as it lacks the heavy-duty construction required for rocks and wet grass.
This unit is strictly intended for workshop air filtration systems.
Buyers note that the 30-micron rating is effective for capturing fine wood dust.
It is widely recognized as a specialized component rather than a lawn maintenance tool.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. MTD 964-04154B Black 21" Grassbag Craftsman 964-04154A 964-04154 964-04120A
An unexpected feature of this bag is the reinforced rear-discharge mounting, which creates a tighter seal than most aftermarket clones. It is the gold standard for those who prioritize a factory-matched fit.
I view this as the most reliable choice because it removes the guesswork from the installation process. By sticking to the original equipment design, you avoid the common gaps that lead to clippings blowing back onto your legs.
This remains my top pick for anyone needing a guaranteed, hassle-free replacement.
Users report that the build quality aligns with the original mower specs.
It consistently receives the highest marks for compatibility across various 21-inch decks.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. VIQAEKK Mower Grass Bag 964-04117A/664-04117 for MTD TroyBilt 21" Lawnmower
The most common complaint involves the attachment points feeling slightly less rigid than the original, which can cause the bag to shift if you overfill it. However, it remains a balanced choice for those needing a quick fix to get back to mowing.
It offers a decent middle ground for the casual homeowner. In my view, the convenience of the fast shipping often outweighs the slight difference in material thickness compared to premium options.
Buyers note the installation is straightforward despite the lighter frame construction.
The fabric is generally viewed as adequate for seasonal, light-duty lawn care.
It is a frequent go-to for those who need a replacement in a hurry.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. AOMUCH Lawn Mower Grass Bag 964-04117A for MTD Troy Bilt 21" Mower
This bag is a close cousin to the VIQAEKK model, though it features a slightly more streamlined aesthetic for those who prefer a clean look on their machine. It serves as a solid generic upgrade if your current bag has developed holes.
I believe this is a dependable alternative if you cannot find your specific brand name in stock. It performs the basic task of clipping retention well enough for most standard suburban lawns.
Users often point to the universal fit as a primary benefit for older mower models.
The fabric is reported to be durable enough for weekly grass collection.
It is seen as a reliable backup when higher-priced options are unavailable.
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Choosing Between Them
For the homeowner who needs a reliable, long-lasting solution, the MTD 964-04154B is my top recommendation because it offers the original equipment quality required for a perfect, dust-free fit. If you are looking for a cheaper way to save your existing frame, the Kvjicdo bag is the best choice for budget-conscious DIYers. Meanwhile, the VIQAEKK and AOMUCH models are excellent backups for a quick fix, while the Big Horn filter is strictly for those managing fine dust in a workshop.
Please keep in mind that these products are designed specifically for grass collection or dust filtration, and they are not interchangeable. A mower bag will fail to capture fine workshop dust, and a filter bag will tear instantly under the weight of wet lawn debris. Always verify your specific model number to ensure the mounting hardware matches your deck before making your purchase.
As an Amazon Associate, this site earns from qualifying purchases. Buyer sentiment reflects aggregate ratings and listed features at the time of writing; prices and availability change.