How to Replace a Riding Lawn Mower Fuel Filter



This step-by-step riding mower repair guide shows how to replace the fuel filter in a riding lawn mower. The fuel filter keeps dirt from getting into the carburetor. A clogged or dirty fuel filter doesn’t let enough fuel reach the carburetor, so the engine run roughs or stops running completely. Remove the old fuel filter and install a new one when you tune up your lawn tractor each year, using a manufacturer-approved replacement part.

This procedure works for common Briggs & Stratton engines that power Craftsman, MTD, Husqvarna, Murray, Toro, Troybilt, Snapper, Yard-Man, Ariens, Poulan and John Deere riding mowers and lawn tractors.

Repair difficulty:
Time required:

Less than 15 min.

Parts Required

  • Fuel filter

For manuals, repair guides, and specific part recommendations, enter your model number.

Tools Required

  • 2 hose pinch-off pliers
  • Pliers
  • Shop rag
  • Work gloves

Before you begin

Park the tractor on a level surface in a well-ventilated area.

Set the parking brake and let the engine cool.

Wear work gloves to protect your hands.. 


 Warning: Undertaking repairs to lower lawn-care equipment can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

How to Replace the Fuel Filter on a Riding Lawn Mower

Step 1: Disconnect the spark plug

Turn the ignition switch off and remove the key.

Lift the tractor hood and disconnect the spark plug wire.

 Tip: Disconnect both spark plug wires if your tractor has 2 cylinders.

Step 2: Remove the old fuel filter

Remove the lower dash fastener and pull off the lower dash.

Clamp hose pinch-off pliers onto the fuel line on each side of the fuel filter to block the flow of fuel.

Position the shop rag under the fuel filter to catch drips.

Release the hose clamps and remove the hose from each side of the fuel filter.

Wipe up any spilled fuel. 

Step 3: Install the new fuel filter

Connect the hose on each side of the new fuel filter using the hose clamps.

Release the hose pinch-off pliers from each side of the fuel filter.

Reinstall the lower dash and secure it with the fastener.

Step 4: Reconnect the spark plug

Reconnect the spark plug wire and lower the tractor hood.

 Tip: Reconnect both spark plug wires if your engine has 2 cylinders.