SCBHWJ 17" Toothed Mulching Blades for 48" John Deere Decks — 3‑Pack, 7‑Point Star Mount, .157" Thick

These are three SCBHWJ toothed mulching mower blades—17" long with a 7‑point star center—that replace OEM GX21784/AM141035 and fit 48" John Deere decks to improve cut and mulching performance.

These replacement blades are engineered for riders and zero-turn mowers with 48" cutting decks that use 17" blades. Each blade is 0.157" thick and 2 3/4" wide, with a 7‑point star center hole to match factory spindles. The set of three blades restores cut quality, helps finely chop clippings for mulching, and is a direct-fit option for many John Deere 100‑series and similar models.

Which John Deere models will these SCBHWJ blades fit?

They are designed to fit a broad range of John Deere lawn tractors and garden tractors that accept 17" blades with the 7‑point star mounting. Confirm the blade length and the star-shaped spindle hole on your mower before ordering.

• Compatible with John Deere models such as 145, 155C, LA130, LA140, LA145, LA155, LA165.
• Also fits E170, E160, E140, E150, X165, X140, X166 and D140–D160 100 series.
• Replaces OEM part numbers GX21784, AM141035, GX21786, GY20852.

How do these toothed mulching blades affect cutting and mulching?

The serrated or 'toothed' cutting edge increases air agitation under the deck so clippings are lifted and recirculated for finer chopping. That results in a denser, more even mulch distribution and can make bagging less necessary when conditions are right.

• Toothed edges break clippings into smaller pieces for faster decomposition.
• Improved airflow under the deck promotes consistent lift and shearing action.
• Works best with a properly tuned deck and regular blade maintenance.

What are the exact blade specifications and mounting details?

Each blade measures 17 inches from tip to tip, 2 3/4 inches at the widest cutting band, and is 0.157 inches thick. The center uses a 7‑point star hole to match the factory spindle pattern on compatible John Deere tractors.

• Blade length: 17" (fits 48" cutting decks using three blades).
• Thickness: 0.157"; Width: 2 3/4".
• Mount: 7‑point star center to replace OEM star‑pattern blades.

What warranty and support does SCBHWJ provide after purchase?

SCBHWJ offers a 24‑month warranty against manufacturing defects and a committed customer support response within 24 hours via Amazon Messages or the brand’s service email. This gives buyers a clear path for replacement or assistance if any non‑artificial quality problems appear.

• 24‑month warranty on non‑artificial defects.
• Customer service reply within 24 hours for warranty claims or inquiries.
• Sold as a 3‑blade set to equip standard 48" decks that use three 17" blades.

Who this is for: These blades are intended for owners of John Deere 100‑series and comparable tractors who need a like‑for‑like replacement that enhances mulching performance. Choose this set if your mower takes 17" star‑mount blades and you want a direct OEM‑fit option backed by a two‑year warranty. If you run a different spindle pattern, blade length, or deck configuration, measure your existing blade and hub before ordering to ensure compatibility.