Agri-Fab 21" Craftsman-Style Replacement Brushes for 42" Tow-Behind Sweeper 4-Pack — OEM Fit, Durable Synthetic Bristles

Replacement set of four 21" Craftsman-style brushes for the 42" Agri-Fab tow-behind lawn and leaf sweeper model 46780, designed to restore sweeping performance and fit OEM specifications.

If your 42" tow-behind lawn and leaf sweeper has lost pickup power, worn bristles are often the culprit. This Agri-Fab-compatible kit includes four 21" brushes made to match the size and mounting pattern of the Craftsman-style core used on model 46780 sweepers. Swapping worn brushes for fresh ones brings back consistent contact with turf and hard surfaces so the hopper fills more efficiently and you spend less time repeating passes.

How will these brushes improve my sweeper's performance?

Worn, flattened bristles reduce agitation and the sweeper's capacity to lift leaves, grass clippings, and light debris from uneven ground. Installing new brushes restores the intended sweeping angle, increasing the amount collected per pass and reducing clogging in the brush chamber.

• Restores bristle stiffness for better debris agitation and pickup
• Reduces the need for repeated passes over the same area
• Improves hopper fill rate for fewer emptying stops

Are these brushes easy to install on model 46780?

Yes — the brushes are built to the same diameter and shaft pattern as the original Craftsman 21" brush for the 42" sweeper, so installation is straightforward for most DIYers. Basic hand tools are usually sufficient, and replacements can be completed in under an hour with a simple removal of the old brush cores and reassembly of the new set.

• Matches original shaft and mounting dimensions for 46780
• Requires only common hand tools for swap-out
• Step-by-step install typically takes less than an hour

What materials and construction features do these replacement brushes use?

The brushes combine resilient synthetic bristles and a rigid core made to endure the abrasion of sweeping across gravel, mulch, and turf. The bristles are heat-set into the core to maintain shape and distribution under normal operating conditions.

• Synthetic bristles resist moisture and rot compared with natural fibers
• Sturdy core maintains concentric rotation and balance
• Even bristle spacing helps prevent pulling or snagging on uneven surfaces

When should I plan to replace the brushes and how can I extend their life?

Replace brushes when bristles are visibly flattened, missing in sections, or when pickup noticeably declines despite correct height and speed settings. Simple care extends life: avoid sweeping large rocks, remove lodged debris after each use, and store the sweeper indoors or covered to minimize UV and moisture damage.

• Replace when bristles are worn down or performance drops
• Clear stones or twigs after use to prevent accelerated wear
• Store dry and covered to reduce weathering and sun damage

Who is this for: This four-pack of 21" Craftsman-style replacement brushes is for owners of the 42" Agri-Fab tow-behind lawn and leaf sweeper model 46780 who want an OEM-fit brush replacement to restore or maintain sweeping efficiency. It suits homeowners, groundskeepers, and pros who perform routine equipment maintenance and prefer a quick, cost-effective way to keep their sweeper operating near original performance. If you routinely sweep lawns, driveways, or light landscaping debris and have noticed reduced pickup, this brush set offers a direct fit and straightforward swap to get the job done.