John Deere TriCycler 46-inch Mulch Kit - BM18538

Part Number: BM18538
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John Deere TriCycler 46-inch Mulch Kit - BM18538
John Deere TriCycler Mulch Kit - BM18538
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Your Price: $398.23
John Deere TriCycler 46-inch Mulch Kit - BM18538
Usually available
Brand John Deere


John Deere TriCycler 46-inch Mulch Kit

The Tricycler system gets its name from the ability of a John Deere mower to bag, side discharge, or mulch to meet the three phases of lawn care that are associated with the changing seasons (spring, summer, or fall).
The Tricycler mulching attachment allows converting the mower so it can be used to perform the mulching function (grass or leaves) of this system.
The attachment consists of special mulching blades, a deflector ramp to direct the clippings into the blades for re-cutting, and a discharge closure plate with adjustable baffle.

Operating tips
  • Adjust baffle to the proper opening. The adjustable baffle can be moved to one of five positions to match conditions using the convenient wing nuts.
    • When mulching grass, the operator should start with the baffle set in the highest position (greatest opening). 
    • In drier conditions or when mulching leaves, the baffles can be moved down to reduce the amount of material that is discharged.

NOTE: The holes in the adjustable baffle are intended for leaf mulching. When mulching dry leaves, the holes will allow some air and leaf particles to escape, reducing blowout in other areas of the mower. However, when mulching grass, these holes can be expected to plug.

  • Mow when grass is dry.
  • Observe the 1/3 rule. 
    • No more than 1/3 of the grass blade should be cut off at one time. This allows more efficient mulching and will promote the continued good health of the grass. 
    • If the desired cut height can't be achieved by cutting off 1/3, or there is clumping of the clippings, it may be required to cut higher. Wait a day, then lower the mower and make a second pass. 
  • Mow at proper intervals approximately every 4 to 5 days. 
  • Always mow with sharp blades.

  • Remove Tricycler attachment and install the appropriate medium or high lift blades.


  • Deflector ramp and discharge cover must be removed.
  • Special mulching blades may be used if satisfactory results are achieved. If not, remove and replace with standard blades.
Compatibility information
The Tricycler mulching attachment is compatible with riding equipment having a seat safety switch (in good operating condition) to prevent an operator from adjusting the baffle while the mower is running.

Click here to preview BM18538 installation instructions

Replaces BM17877


  • California use info:

    ⚠ Warning: Cancer and Reproductive Harm -

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