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Customer Questions and Answers for 21" Mulching Blade by Mtd

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Manufacturer Part
4.89 (64)
By: Mtd
Part Number: OEM18420003
Manufacturer Part Number: 942-0741A

A mulching blade has a unique curved or angled design that allows discharging, bagging, and mulching. If its edges are already dull, it can lead to longer mowing time and frayed and torn grass blades. Mulching blade installation is easy. First, unplug the spark plug wire. Then, position the lawnmower on its side. Get a woodblock, preferably 6 x 2 in size, and put it between the old blade and housing deck. Make sure that the wood will prevent the old blade from moving. Take a socket wrench and remove the blade’s nut and washer. Remove the old blade and put the new mulching blade in. Put the nut and washer back and tighten until it is secured. You can use the woodblock to prevent the replacement blade from moving when it is tightened. This mulching blade replacement s an original MTD product. This OEM mulching blade can be used for MTD, Craftsman, Cub Cadet, Murray, Yard-Man, and Bolens lawnmower models. This brand-new mulching blade is sold individually. The support blade and screw hex are sold separately.

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Questions & Answers

For Mtd 21" Mulching Blade (Part Number: OEM18420003)

1 Answer

Jamie, It may be that the blade needs to be sharpened and you will want to use the blade recommended for your mower.

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1 Answer

Patrick, Yes, a lawnmower blade can be resharpened or can be replaced. If the blade is bent you will want to replace it.

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1 Answer

The dimensions are as follows: C to C 2-1/2" Center Hole 59/64 x 11/16" Length 21" Outer Hole 5/16" Thickness .125 Width 2-1/4"

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1 Answer

No special tool is required. A socket or open wrench can be used to remove the blade.

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