Air Filters & Pre Filters for Ride-On Mowers

Air filters and pre-filters keep dust, grass clippings and debris out of your ride-on mower's engine. The air filter is the main barrier protecting the engine, while a pre-filter sits in front of it to catch larger debris first, extending the life of the main filter in dusty or demanding conditions.

Foam pre-filters can usually be washed in warm soapy water and dried before refitting, but paper air filters should never be washed and need replacing when dirty. Check against your mower's model and part number to get the correct fit, and replace filters regularly to protect engine performance and fuel efficiency.

Frequently asked questions

How often should I change a ride-on mower air filter?

Most air filters should be checked regularly and replaced at least once a year or every 25 to 50 hours of use. Mowing in dusty or dry conditions means you'll likely need to replace it more often.

Can I wash my air filter instead of replacing it?

Foam air filters can usually be washed with warm soapy water and dried thoroughly before refitting. Paper air filters should never be washed, as water damages the filtering material and reduces its effectiveness.

What does a pre-filter do?

A pre-filter sits in front of the main air filter and catches larger debris and dust before it gets there, reducing how quickly the main filter clogs. This is especially useful if you mow in dusty or debris-heavy areas.

Can I run my mower without an air filter?

No, running a mower without an air filter lets dust and debris reach the engine and can cause serious damage. It's a cheap part to replace compared with the cost of engine repairs.

How do I know if my pre-filter needs replacing?

If you notice dust and dirt building up around the air filter itself, the pre-filter may need cleaning or replacing. A worn pre-filter lets more debris through and reduces overall filtration.