John Deere 42 inch 42M Edge Mulch Replacement Deck For X300 X500 Series BM24194

Part Number: 903RM (BM24194)
3 Review(s)
John Deere 42 inch 42M Edge Mulch Replacement Deck For X300 X500 Series BM24194
Smooth underside stays cleaner
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Your Price: $935.00
John Deere 42 inch 42M Edge Mulch Replacement Deck For X300 Select Series™ Tractor,SKU21893,903RM
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Brand John Deere


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John Deere 42 inch 42M Edge Mulch Replacement Deck

The innovative design of the 42-in. Edge mulch deck sets a high standard for mulching grass and leaves:
  • Removable gates for discharge of excess clippings 
  • Adjustable for optimum performance in a wide variety of conditions 
  • Operates smoothly in all conditions
  • Uses a standard V-belt and non-timed blades for reliability

The underside of the mower deck is contoured and free of obstructions:

  • Ensures a smooth flow of grass clippings
  • Minimizes grass buildup
  • Designed to mulch and return grass clippings
  • Minimizes fertilizer needs
  • Eliminates disposal hassle
  • Offset mower blades to permit blade overlap with the use of a standard V-belt drive
  • Ensures the blades cannot contact each other
  • Enables discharge of excess clippings, in heavy grass conditions, through two removable material gates at the rear of the deck
  • No discharge chute
  • Allows two-sided trimming
  • Smaller storage requirements
  • No tools required to open the gates
  • Provides two mower wheels for a uniform mowing job

Note: If a 42M Mower is installed on an X300 Series Tractor that was equipped with a 38X Mower, one M155044 RH/LH lift arm is required; the 38X Mower uses a unique right-side draft arm. Also order AM136646 lift-assist spring kit if the tractor is not already equipped with it. This would normally apply to a tractor previously equipped with a 38X or 42X Mower deck, X300 less-deck model, or model year 2006 to model year 2009 (serial number 010001-150,000) X300/42M Tractor.

Fits model:
  • X300
  • X304
  • X320
  • X324
  • X340
  • X360
  • X500
  • X520
  • X530
  • X540

Replaces BM21893



  • California use info:

    ⚠ Warning: Cancer and Reproductive Harm -

Feature 13


Customer Reviews

It was easy to install, but the mulching deck leaves gaps in cutting and results in what looks like uneven cuts. It's VERY inefficient as it requires I do extra passes quite often.
Did you find this helpful?  3 of 4 Found Helpful
Reviewed by:  from JACKSON. on 7/30/2018
Owner of sp auto & marine
The deck went on just like the original. The duel belt design is far superior to the original 42" inch single belt design ..The deck cut very well very even,, no problems at all ..customer was very happy
Did you find this helpful?  3 of 7 Found Helpful
Reviewed by:  from Francestown nh. on 8/7/2015
mower deck
This is a huge improvement over the original deck that continuously broke belts
Did you find this helpful?  1 of 2 Found Helpful
Reviewed by:  from CONWAY. on 5/12/2021

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