Swi sher 21059 Lawn Mower Blade Set - Fits Swi sher Briggs & Stratton 44 inch Rough cuts mowers; 2 Mower Blades(21031) + 1 Belt(20655)

What It Is

The Swisher 21059 set includes two replacement mower blades (part 21031) and one drive belt (part 20655), designed specifically for Swisher 44-inch Rough Cut mowers powered by Briggs & Stratton engines. This is a complete cutting deck refresh kit for heavy-duty brush and tall grass mowing.

Fitment & Compatibility

Before buying, confirm these three things:

• Deck size: This set fits only 44-inch Swisher Rough Cut decks. Measure your deck width to be sure.
• Model/engine: Works with Swisher models using Briggs & Stratton engines (typically 14-16 HP). Check your mower’s model number—common compatible models include LZ-44, LZ-44-14, and LZ-44-16.
• OEM vs aftermarket: These are Swisher OEM parts, not generic. The blades are 17.5 inches long, 2.75 inches wide, with a 1-inch center hole and 0.5-inch offset. The belt is 94.5 inches long, 1/2-inch wide, type A-section. If your current blades or belt don’t match these measurements, this set won’t fit.

Key Things to Know

• Installation difficulty: Moderate. Requires basic tools (socket wrench, jack or blocks to lift deck). Expect 30–60 minutes. The belt routing can be tricky—take a photo of the old belt before removing.
• Blade quality: Heat-treated steel, good for thick brush and occasional rocks, but not for heavy commercial use. They dull faster than premium aftermarket options if mowing over gravel or sandy soil.
• Common gotchas: The blades are sold as a pair but often need to be balanced before install. The belt may feel tight—it’s correct; it will seat after a few minutes of run time. Check spindle bearings and pulley condition while you’re replacing—worn parts will shorten belt life.
• Includes both blades and belt: Saves money vs. buying separately, but if only one part is worn, you’re buying extras.

Should You Buy It

This is the right choice if you have a Swisher 44-inch Rough Cut mower with a Briggs engine and want a direct OEM replacement kit that’s ready to bolt on. It’s best for homeowners or light commercial users who mow tall grass and brush occasionally. Skip it if you need heavy-duty blades for rocky terrain or if your mower uses a different deck size or engine brand—then look for a universal or premium aftermarket set.