MTD 731-04218B Impeller Assembly

The MTD 731-04218B Impeller Assembly moves snow from the auger housing toward the discharge chute, supporting proper snow clearing and discharge direction.

Problems This Part Can Resolve:

• Snow exits the chute weakly.

• Impeller rotation becomes uneven.

• Snow backs up inside the housing.

• Impeller shows visible damage.

• Discharge distance decreases.

Reduced Snow Throw

Quick Check: Observe whether snow leaves the chute with noticeably less force than usual.

Fix Suggestion: Inspect the impeller blades for bending, cracks, or excessive wear and service the assembly if damage affects snow movement.

Prevention Tip: Keep stones and other hard debris away from the auger housing during operation.

Uneven Impeller Movement

Quick Check: Watch the impeller while the drive is engaged for hesitation or irregular rotation.

Fix Suggestion: Examine the assembly for damaged blades or interference that could disturb its rotation.

Prevention Tip: Check the impeller area for obstructions before operating the snow blower.

Housing Backup

Quick Check: Check whether snow remains inside the housing instead of moving toward the discharge chute.

Fix Suggestion: Inspect the impeller for packed snow or physical damage that may restrict snow movement.

Prevention Tip: Clear accumulated snow from the housing before storing the snow blower.

Blade Damage

Quick Check: Examine the impeller blades for bends, cracks, dents, or missing material.

Fix Suggestion: Inspect the impeller assembly for blade damage and replace it if bent, cracked, or worn blades prevent proper snow movement.

Prevention Tip: Avoid contact with hidden objects while clearing snow.

Customer Experience: After replacing the damaged impeller assembly, one snow blower owner noticed smoother snow discharge and less snow buildup inside the housing.