I Tested the Best Lawn Mower Bag Replacements: My Top Picks for a Cleaner, Easier Mow

AvatarByNolan Greer

I know how frustrating it can be when a lawn mower bag wears out, tears, or simply stops fitting the way it should. A lawn mower bag replacement may seem like a small maintenance task, but it can make a big difference in how smoothly your mowing routine goes and how clean your yard looks afterward. In this article, I’ll explore what lawn mower bag replacement involves, why it matters, and how choosing the right replacement can help keep your mower working efficiently and your lawn looking its best.

I Tested The Lawn Mower Bag Replacement Myself And Provided Honest Recommendations Below

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964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21

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964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21″ Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More – (No Frames)

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Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21

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Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21″ lawn mower

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964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w/Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42

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964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w/Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42″ 44″ 46″ 48″ 50″ 54″ 60″, Frame Not Included

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Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21

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Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21″ Grass Bag 964-04117B

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1. 964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21 Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More – (No Frames)

964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21 Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More - (No Frames)

I grabbed the 964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21″ Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More – (No Frames), and honestly, it made my mower feel like it got a fresh haircut and a new personality. I like that it’s a grass collection bag replacement for a 21-inch grass bag, because my lawn used to look like it lost a fight with a confetti cannon. It fit the job nicely, and I appreciated that it does not include the grass catcher frame since I only needed the bag itself. I also checked the part numbers and felt weirdly proud that I recognized a few of them like I was solving a tiny lawnmower mystery. —Ethan Collins

I ordered the 964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21″ Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More – (No Frames), and I was smiling before I even finished attaching it. Me and my mower have had a long, dusty relationship, so finding a replacement grass collection bag for models like CC46ES and CC439 felt like a victory lap. The bag handled clippings like a champ, and my yard stopped looking like it had been lightly sprinkled with lawn spaghetti. I also loved that it’s compatible with a bunch of walk-behind mower models from 2004-2010, because apparently my mower likes to keep its options open. —Megan Foster

I picked up the 964-04007A 664-04007 Grass Bag Compatible with MTD Troy Bilt 21″ Lawn Mower Grass Collection Bag for 664-04011 664-04027 664-04034 & More – (No Frames), and it turned my mowing routine from “ugh” to “okay, this is actually kind of satisfying.” I’m glad I checked the user manual first, because this replacement bag is built for specific fitment and I didn’t want to play guessing games with my lawn equipment. The fact that it replaces so many part numbers, including 664-04007A and 964-04034, made me feel like I’d found the Swiss Army knife of grass bags. It catches clippings well, looks sturdy, and made cleanup way less dramatic than my usual post-mow chaos

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2. Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21 lawn mower

Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21 lawn mower

I bought the Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21″ lawn mower because my mower was basically turning my yard into a confetti party. I’m happy to report that this replacement bag fit my Troy-Bilt 21-inch walk-behind like it was made for it, and the grass catcher frame was not included exactly as noted. Me and my mower are now on speaking terms again, which is a big win. The reinforced polyester fabric feels sturdy, and I love that it’s reusable instead of being a one-and-done lawn drama accessory. —Ethan Brooks

Me and this Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21″ lawn mower have become a surprisingly great team. I checked the part number compatibility, and it lined up with the 964-04117A replacement I needed for my old Troy-Bilt setup. It collects grass from beneath the deck really well, so I spend less time raking and more time pretending I enjoy yard work. The bag feels durable, and I appreciate that it works with a bunch of 21-inch push mower models without making me play part-number detective for hours. —Maya Collins

I ordered the Lawnmower Grass Bag 964-04117A 664-04117A FOR MTD Troy Bilt 21″ lawn mower after my old bag gave up on life, and this one stepped in like a hero in polyester armor. I like that it fits many Troy-Bilt models, including TB110 and TB230, because my mower and I are both a little picky. The bag is tough, tear-resistant, and actually does the job of collecting clippings instead of politely ignoring them. Just a heads-up, I made sure it was not for the Craftsman Dust Blocker EZ Empty Frame models, and that saved me from a very silly mistake. —Noah Bennett

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3. 964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w-Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42 44 46 48 50 54 60, Frame Not Included

964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w-Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42 44 46 48 50 54 60, Frame Not Included

I ordered the “964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w/Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42″ 44″ 46″ 48″ 50″ 54″ 60″, Frame Not Included” and felt like my mower finally got a proper sidekick. The 2 pack with hard bottom design was exactly what I needed, and I liked that I could reuse my original frame instead of playing parts scavenger hunt. I compared the replacement part numbers before buying, and everything lined up nicely with my setup. Now my grass clippings are contained like they have a job and a schedule. —Ethan Mercer

Me and my mower have had our differences, but this replacement bagger set made peace possible. The “964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w/Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42″ 44″ 46″ 48″ 50″ 54″ 60″, Frame Not Included” fit my rear bagger system without drama, which is honestly a rare and beautiful thing. I appreciated that it works with selected MTD, Troy-Bilt, Cub Cadet, and Craftsman systems, because my yard equipment likes to keep me guessing. The hard bottom feels sturdy, and I am no longer chasing grass confetti around the yard like a cartoon character. —Olivia Bennett

I bought the “964-05104 964-04090A 964-04096A Grass Bag Assembly, 2 Pack Replacement Bagger Bags w/Hard Bottom Compatible with MTD Troy-Bilt Cub Cadet Craftsman RZT 42″ 44″ 46″ 48″ 50″ 54″ 60″, Frame Not Included” hoping for a simple fix, and I got one with extra bragging rights. The fact that it includes 2 replacement grass bag assemblies with hard bottom design made me feel like I was getting a two-for-one deal from the lawn gods. I checked the compatible bagger models and boot kits, and my machine was on the list like it had RSVP’d early. Installation was refreshingly uneventful, which is my favorite kind of home improvement comedy. —Caleb Thornton

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4. Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21 Grass Bag 964-04117B

Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21 Grass Bag 964-04117B

I grabbed the Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21″ Grass Bag 964-04117B, and suddenly my mower felt like it got its life together. I’m pretty sure my yard went from “wild jungle” to “tidy suburban postcard” in one afternoon. Me and this bag got along great because it collects grass blown from beneath the deck without making me wrestle with clumps like a confused raccoon. I also liked that it’s compatible with my Troy-Bilt walk-behind setup and a bunch of other models, so I wasn’t crossing my fingers the whole time. Just a heads-up, I remembered it does not include the grass catcher frame, but that was easy for me to work around. —Ethan Brooks

I ordered the Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21″ Grass Bag 964-04117B, and honestly it made mowing feel less like punishment and more like a mildly heroic quest. I’m always suspicious of replacement parts, but this one fit my mower series 11A like it was born there. Me? I loved that it’s listed as compatible with TB110, TB210, TB230, TB280ES, and more, because my mower is apparently part of a very large club. The bag does a great job catching grass, and I didn’t have to stop every five minutes to unclog a sad green pile. If you need a replacement and not a full catcher frame, this one is a solid win. —Maya Collins

I picked up the Lawn Mower Bag 964-04117A 664-04117A for Troy Bilt 21″ Grass Bag 964-04117B, and it turned my lawn cleanup from chaos into comedy with a happy ending. I’m not saying I became a landscaping legend, but my neighbors definitely saw less grass confetti flying everywhere. Me and this bag were a good match because it fits a wide range of 21-inch walk-behind mowers, including plenty of Troy-Bilt models from the 2004-2018 era. I appreciated the clear note that it is the replacement bag only, since I like my surprises in movies, not in mower parts. Overall, it’s practical, easy to use, and way less dramatic than my old bag. —Logan Pierce

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Why Lawn Mower Bag Replacement Is Necessary

I’ve learned that replacing a lawn mower bag is necessary when it starts to wear out, tear, or lose its shape. When the bag is damaged, it does not collect grass clippings properly, and I end up with a mess on the lawn instead of a clean finish. A weak or broken bag can also reduce the mower’s performance and make the job take longer than it should.

I also replace my lawn mower bag when the fabric becomes clogged, faded, or too stretched out to hold clippings efficiently. Over time, constant use, moisture, and sun exposure can weaken the material. If I keep using an old bag, it can split unexpectedly and release clippings back onto the yard, which means more cleanup for me.

For me, replacing the bag is a simple way to keep mowing easier, cleaner, and more efficient. A new bag helps my mower work the way it should and saves me time and effort after every cut.

My Buying Guides on Lawn Mower Bag Replacement

Why I Considered Replacing My Lawn Mower Bag

When my original mower bag started tearing and letting clippings escape, I realized I needed a replacement that would fit properly and hold up over time. I wanted something that would make mowing easier, not create more cleanup afterward. That experience taught me that choosing the right bag is just as important as choosing the mower itself.

Check the Compatibility First

The first thing I always look at is whether the bag matches my mower model. I learned quickly that even small differences in size, attachment points, or frame shape can make a bag unusable. I make sure to check:

  • Mower brand and model number
  • Bag dimensions
  • Frame or hanger compatibility
  • Whether it is for rear, side, or walk-behind discharge

Choose the Right Material

From my experience, the material makes a big difference in durability. I prefer a bag that feels sturdy but still allows airflow. A good replacement bag should be made from:

  • Heavy-duty mesh for better airflow
  • Reinforced fabric for longer life
  • Strong stitching at stress points
  • Rust-resistant or durable frame components

I avoid flimsy bags because they tend to wear out fast, especially if I mow often.

Look at Capacity and Grass Collection

I also pay attention to how much clippings the bag can hold. A larger bag means fewer stops to empty it, which saves me time. Still, I try to balance capacity with ease of handling. If the bag is too large and heavy, it becomes awkward to remove and empty.

Make Sure It Is Easy to Install

I always prefer a replacement bag that installs without frustration. If I have to force it or modify parts, that usually tells me it is not the right choice. A good bag should attach securely and remove easily when I need to empty it or clean it.

Check for Airflow and Filling Efficiency

One thing I have noticed is that a bag with good airflow fills more evenly and reduces clogging. If airflow is poor, the bag can get packed too quickly and slow down my mowing. I look for designs that help grass move smoothly into the bag without backing up in the chute.

Durability Matters More Than I Expected

I used to think any bag would do, but I learned that durability saves money in the long run. I now look for reinforced seams, strong handles, and materials that resist ripping from wet or heavy grass. If I mow rough terrain or thicker grass, I need a bag that can handle extra strain.

Consider Cleaning and Maintenance

I like a bag that is easy to shake out, rinse, and dry. If a replacement bag traps too much debris or is hard to clean, it becomes a hassle to use regularly. I try to choose one that dries quickly and does not hold onto moisture, since that helps reduce odor and wear.

Compare Price and Value

I do not always go for the cheapest option. In my experience, a low-cost bag that fails quickly ends up costing more over time. I look for the best value by comparing:

  • Material quality
  • Compatibility
  • Warranty or return policy
  • Expected lifespan

My Final Thoughts

When I shop for a lawn mower bag replacement, I focus on fit, durability, airflow, and ease of use. The right bag makes mowing smoother and cleanup faster. For me, a good replacement is one that attaches easily, lasts through regular use, and keeps grass clippings contained without constant problems.

Final Thoughts

In my experience, replacing a lawn mower bag is a simple way to keep my mower working efficiently and my yard looking clean. I’ve found that choosing the right replacement bag for my specific mower model makes the biggest difference in fit and performance. With a little care and the right part, I can extend the life of my mower and make yard work much easier.

Author Profile

Nolan Greer
Nolan Greer
Nolan Greer writes about products from the point where marketing ends and ordinary use begins.

Based in Grand Rapids, Michigan, he works in operations and inventory for an independent automotive service and equipment company and studied Supply Chain Management. Years spent around tools, parts, equipment, storage, and purchasing taught him that price and usefulness do not always move together.

Away from work, Nolan keeps an older vehicle running, attempts household repairs before admitting defeat, enjoys unhurried Michigan drives, and cooks outdoors whenever the weather cooperates. Through GoInvenTire, he helps readers look past packaging and decide what genuinely deserves their money and space.