8TEN LawnRAZOR Blade for John Deere Z325E Z330M S240 X330 X350 X354 X370 48A Inch Deck UC25185 (Toothed Mulching) 3 Pack

What It Is

The 8TEN LawnRAZOR Blade is a toothed mulching blade designed for 48-inch John Deere decks on select zero-turn and lawn tractor models, optimized for fine clipping mulching rather than bagging or side-discharge.

Fitment & Compatibility

• Deck size: Only fits 48A-inch (48-inch) John Deere decks. Measure your deck width—if it’s 42, 54, or 60 inches, this won’t work.
• Models: Z325E, Z330M, S240, X330, X350, X354, X370. Confirm your model is listed—some X300-series variants use different blade lengths.
• OEM cross: Replaces John Deere part UC25185. Verify your current blade’s part number (usually stamped on the blade) matches.
• Measurements: Blade length is roughly 20.5 inches with a 1-inch center hole and 5-point star drive. Measure your existing blade’s hole shape and length to confirm.
• Quantity: Sold as a 3-pack (one set for a 48-inch deck). No need to buy extra blades unless you need spares.

Key Things to Know

• Installation difficulty: Easy—use a socket wrench and blade removal tool. Torque to 70-80 ft-lbs (check your manual). A 1-inch impact socket fits the star drive.
• Quality: 8TEN blades are budget-friendly and sharp out of the box, but the toothed design can dull faster on rocky or sandy lawns. Inspect after every 10 hours of use.
• Common gotcha: Toothed mulching blades require sharp edges to cut grass finely—dull teeth leave ragged clippings. Sharpen or replace more often than standard blades.
• No bagging: These are strictly for mulching. If you switch between bagging and mulching, you’ll need a second set of standard blades.

Should You Buy It

Buy this if you want a budget-friendly, ready-to-use mulching upgrade for your 48-inch John Deere and you mow clean, debris-free lawns frequently. Avoid if you need bagging performance, have a different deck size, or prefer premium blades that hold an edge longer.