Cub Cadet 21 in. Mulching Blade at Tractor Supply Co.
Skip to Main Content

For security, click here to clear your browsing session to remove customer data and shopping cart contents, and to start a new shopping session. 


Please enable your microphone.


We Are Listening...

Say something like...

"Show me 4health dog food..."

You will be taken automatically
to your search results.


Your speech was not recognized

Click the microphone in the search bar to try again, or start typing your search term.


We are searching now

Your search results
will display momentarily...


Cub Cadet 21 in. Mulching Blade

SKU # 445217899
Enter Zip Code for price
Product price

Save Up To
See price at checkout Why?
Product Rating is 3.0

Financing Available! Click here for more details...



Pickup In Store

This item will ship within 3 days.

Delivery Options for

This item will ship within 3 days.

Item Information

Keep your mower running smoothly with the Cub Cadet 21 in. Mulching Blade.

  • Fits Cub Cadet Series 300, 600 and 900 walk-behind mowers

Specification Description
Product Type: Mulching Blades
OE Part Number: Replaces O.E. # 942-0741, 942-0741A, 742-0741 and 742-0741
Part Length: 21 in.
Part Width: 2-1/4 in.
Brand: Cub Cadet
Part Height: 1 in.
Manufacturer Part Number 490-100-C089
Cub Cadet 21 in. Mulching Blade is rated 3.0 out of 5 by 1.
Rated 3 out of 5 by from i cant there is a part they goes on the motor shaft to make this blade work and whiteout it YOU CANT USE THE BLADE. IT GOING ON THE MOTOR SHAFT HAS A KEY WAY. IS IT AND ADAPTER I DO NOT KNOW CANT FINED IT IN YOUR PARTS BREAK DOWN
Date published: 2015-05-25
  • y_2019, m_7, d_16, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_445217899, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_tractorsupply

I have cub cadet sc500z it dose't bag the grass dose't pick up what do i have to do to fix it

Asked by: Sanyo
Hello Sanyo. make sure you are not cutting very long or wet grass. Also check the connections to the bagger and make sure the plug on the side of the deck is secure to make the air flow go directly to your grass bagger. Thank you for your question!
Answered by: CubCadet
Date published: 2018-08-28

Will this blade fit MTD push mowers?

Asked by: Gadog
It will fit many but not all of them. You would want to get the full model and serial numbers of your mower and contact your local Tractor Supply store or, you can call Cub Cadet at 877-428-2349.
Answered by: CubCadet
Date published: 2018-10-19
  • y_2019, m_7, d_16, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_445217899, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING)]
  • clientName_tractorsupply