MTD: For a Growing World.
You need Flash player 8+ and JavaScript enabled to view this video.

How to Change Your Riding Lawn Mower's Air Filter

Length of Clip:  1:57

Changing your mower's air filter just once per season can increase power output, fuel efficiency, and engine life.  It's an easy way to get more out of your riding lawn mower.  Refer to your operator's manual to ensure you purchase the right replacement air filter for your machine.


WARNING: Under no circumstances should you start or run your riding lawn mower with the air-cleaner assembly or air filter removed.  Doing so can pull debris into the engine and damage it.


Before you begin, make sure you have a cloth handy.  Then, follow the 10 steps below - demonstrated in the video - to change your mower's air filter.




Step 1

Be sure to replace your filter with one that fits properly.  Air filters can be purchased on this site and where mower parts are sold.

Step 2

Make sure you have the proper tools before beginning this project.

Step 3

Under no circumstances should you start or run your mower with the air cleaner assembly or air filter removed.  Doing so can pull debris into the engine and damage it.

Step 4

Begin by placing the riding mower on a flat, level surface.

Step 5

Make sure the engine is cool. Then, open the hood.

Step 6

Begin by disconnecting the spark plug wire.

Step 7

Clean the air filter area of any debris.

Step 8

Remove the air filter cover.

Step 9

Remove the air filter.  The air filter is most commonly made of pleated paper.

Step 10

If your engine's air cleaner is equipped with a pre-filter, remove it for cleaning.  The pre-filter is most commonly made of foam and can be serviced by washing with liquid detergent and water.  If it's excessively dirty, replace it.  Allow the pre-filter to dry before installation.

Step 11

Install the cleaned or new pre-filter. Then install the new air filter.

Step 12

Replace the air filter cover.

Step 13

Reconnect the spark plug wire or wires and you're good to go.

Part Finder

Don't know your model number?

You can use the Part Finder to help find your model and the right part for your machine.

Find Matching Models