Direct answer: If you need a replacement or upgrade for your lawn mower’s grass bag, these top attachments fit a variety of brands and models and are designed to simplify grass collection. The best options cater to common walk-behind mowers, Toro XT675 series, Husqvarna and Craftsman bag needs, and reel mowers. Choose based on compatibility, bag material, and whether a frame is included. This guide highlights five reliable attachments and explains who benefits most from each.
Buyer snapshots:
- Best for most MTD/Troy-Bilt and similar models without a frame: Braveboy 964-04007A
- Better for Toro models with 22-inch bags: Braveboy 115-4664
- Best for Husqvarna and Craftsman walk-behind mowers (frame not included): Kacarber bag
- Best with hard bottom for lawn bags on larger decks: Braveboy 964-05104 family
- Best for reel mowers from American Lawn Mower Company and compatible units: GC91416 catcher
Braveboy 964-04007A Grass Bag For 21″ Mowers

Best for: MTD, Troy-Bilt, and similar 21″ mowers needing a compatible grass bag (no frame included). This bag covers multiple part numbers, including 664-04007 and 964-04007A, ensuring broad compatibility. The absence of a frame means users must verify frame compatibility with their mower model before purchase. The bag is designed to handle clippings efficiently during regular mowing sessions.
Why chosen: It offers broad part-number compatibility and a straightforward replacement option for common 21″ walk-behind mowers. The lack of a frame is a potential limitation for users who need a complete kit.
Caution: Verify your mower’s model to ensure the bag aligns with your existing frame and mounting points.
Braveboy 115-4664 Grass Bag Without Frame

Best for: Toro XT675 and other 22″ mower models that require a bag without a metal frame. The bag is shipped rolled and can be unfolded to form its proper shape. It’s compatible with multiple 22″ models and is designed to collect clippings beneath the deck, easing cleanup after mowing.
Why chosen: Its frame-free design can simplify installation for compatible Toro mowers. The packaging note about reshaping the bag is a practical consideration for first-time use.
Caution: It is a frame-free bag, so ensure your mower uses a compatible frame-less configuration or has an alternative frame option.
Kacarber Grass Bag For Husqvarna and Craftsman Walk-Behind Mowers

Best for: Husqvarna HU800AWD, HU700AWD, HU700H, HU700L, HU724AWD, HU725AWDEX, HU725AWDH, and similar walk-behind mowers that require a dedicated grass bag (frame not included). This bag replaces several part numbers (580943401, 580943402, 5809434028) and provides a practical alternative for maintenance and replacement needs.
Why chosen: It targets well-known Husqvarna and Craftsman models, addressing common compatibility gaps when frames are not included. The note about no frame helps buyers confirm what parts are necessary for full installation.
Caution: Confirm frame compatibility and mounting points with your specific mower model before purchasing.
Braveboy 964-05104 / 964-04090A / 964-04096A Grass Bag Assembly

Best for: MTD, Troy-Bilt, Cub Cadet, Craftsman, and other brands in the 42″ to 60″ deck range that use rear bag assemblies with a hard bottom. The kit includes compatible replacement bag options (964-05104 and related numbers) and supports multiple lawn mower configurations that use rear bagging systems.
Why chosen: It consolidates several compatible part numbers into one assembly, offering a robust option when upgrading or replacing a complete bag setup with a hard bottom for durability.
Caution: Ensure your mower’s rear bagging configuration and frame support align with the hard bottom design to avoid fitting issues.
American Lawn Mower Company GC91416 Reel Mower Grass Catcher

Best for: 14-Inch and 16-Inch reel lawn mowers from American Lawn Mower Company, models 1204-14, 1304-14, and 1415-16. This reel mower grass catcher helps collect leaves and grasses, reducing debris on the lawn.
Why chosen: For reel mowers, a dedicated grass catcher helps maintain a tidy lawn without the need for large bagging systems used on powered mowers.
Caution: This bag is specific to certain reel mower models; verify the model compatibility with your reel mower before purchasing.
Buying Guide: Key Purchase Considerations
- Compatibility: Compare mower model numbers and bag part numbers to ensure a proper fit. Some bags require a separate frame; others are frame-free.
- Frame vs. Frame-Free: Decide if your mower needs a bag with an integrated frame or can use a frame-less design.
- Bag Material and Durability: Look for reinforced polyester or durable plastics; consider hard bottom options for longer life on high-volume clippings.
- Capacity: Choose a bag size that matches mowing frequency and yard size to minimize trips to empty.
- Ease of Installation: Bags shipped rolled or pre-formed may require setup steps; check installation instructions before buying.
- Model-Specific Notes: Some listings emphasize compatibility with specific brands like MTD, Toro, Husqvarna, Cub Cadet, or American Reel Mowers—plan around your mower lineup.
- Maintenance: Consider how easy it is to clean and maintain the bag and frame; some parts may require replacement rather than repair.
Frequently Asked Questions
- What is a rear bag assembly and when do I need one?
It is the bag system mounted at the rear of the mower to collect clippings, used on bagging mowers with frames and hard bottoms. - Do all bag attachments include a frame?
No; some bags are frame-free while others require an additional frame or boot kit for installation. - Can I mix bag sets from different brands?
Compatibility depends on model and mounting points; verify part numbers and mower model before mixing parts. - Is a hard-bottom bag better than a soft-bottom bag?
Hard-bottom bags are typically more durable and offer rigid support, while soft-bottom bags can be lighter and easier to store; choose based on usage and mower compatibility. - Are reel mower grass catchers compatible with powered mowers?
Reel mower catchers are generally designed for reel mowers and may not fit powered walk-behind mowers without adapters. - What should I check if my bag doesn’t fit?
Re-check model numbers, ensure the correct frame type (if required), and confirm that mounting points align with the bag’s design.