M115496 Gator Mulching Blades for 54" Deck, GY20569 Mower Blades Compatible with S-cotts John Dee-re 345 325 335 Lawn Mower, Replaces M111523, M113518, M115329, 3 Pack

What It Is

This is a 3-pack of Gator-style mulching blades designed for 54-inch cutting decks, compatible with S-cott and John Dee-re lawn tractors (models 345, 325, 335). They replace OEM part numbers M111523, M113518, and M115329, and are intended for mulching clippings into fine particles to return nutrients to the lawn.

Fitment & Compatibility

Before buying, verify these three things:

1. Deck size: These blades fit a 54-inch deck only. Measure your deck’s cutting width if unsure.
2. Blade measurements: Each blade is approximately 18.5 inches long, with a 5-point star center hole and a 1-inch diameter. Check your existing blade’s length and hole shape—if it’s round or oval, these won’t fit.
3. Model compatibility: Confirmed fit for S-cott 345, 325, 335 and John Dee-re 345, 325, 335. Not compatible with older or different series (e.g., 300, 400). Cross-reference with OEM numbers M111523, M113518, M115329.

Note: These are aftermarket blades, not OEM. They may be slightly thinner or lighter than factory blades—verify thickness if you’re replacing worn OEM blades.

Key Things to Know

• Mulching performance: The “Gator” notch design chops clippings finer than standard blades, but works best with a mulching plug or kit installed. Without it, clippings may clump.
• Installation: Medium difficulty. You’ll need a torque wrench (recommended 70-90 ft-lbs) and a blade removal tool. Always disconnect the spark plug first.
• Balance: Some users report minor imbalance out of the box. Check balance with a blade balancer before installing—unbalanced blades cause vibration and deck damage.
• Durability: These are budget-friendly blades; expect to replace them every 1-2 seasons depending on mowing frequency and debris. Harder than OEM blades but more prone to chipping on rocks.

Should You Buy It

If you own a compatible S-cott or John Dee-re tractor with a 54-inch deck and want a cost-effective mulching upgrade without paying OEM prices, this 3-pack is a solid value. Just be prepared to check balance and use a mulching kit for best results. Skip if you need a thicker, longer-lasting blade for heavy-duty commercial use.