20 1/4" - 20 1/2 Blades for Ariens Mowers

Stens Replacement 20 1/4 inch - 20 1/2 inch Blades for Ariens Mowers are built to withstand the harsh conditions of outdoor power equipment.

305-589 Formed Blade.

305-589 Formed Blade.

  • Toothed Blade
    (302-620)
    USD $21.33
    • Buy 2 for USD $19.21 each and save 10%
    • Buy 3 for USD $18.14 each and save 15%
  • Hi-Lift Toothed Blade
    (302-820)
    USD $30.81
  • Ariens Replacement Blade
    (305-589)
    USD $19.42
  • Blade
    (305-730)
    USD $19.26
    • Buy 2 for USD $17.34 each and save 10%
    • Buy 3 for USD $16.38 each and save 15%
  • Hi-Lift Blade
    (315-792)
    USD $17.61

    Out of stock

  • Blade
    (320-402)
    USD $37.68
  • Toro Blade
    (355-036)
    USD $14.54
    • Buy 2 for USD $13.09 each and save 10%
    • Buy 3 for USD $12.37 each and save 15%
  • Heavy-Duty Blade
    (355-331)
    USD $17.68

Details

These quality blades are excellent mower replacement blades for Ariens Mowers. They are precision balanced and heat treated for durability. We carry different types of blades to choose from including toothed blades, mulching blades and rolled air-lift blades.

Toothed and mulching blades achieve smaller clippings for quick decomposition and a more manicured look.

A rolled air-lift blade lifts grass blades up for a cleaner cut and propels grass clippings up to be sucked into a mower bag easily.

The Silver Streak HiLift Toothed blade are made 25% thicker than most other toothed blades and has 40% higher lift. They have more surface areas to cut grass and leaves and have more sharpening area resulting in longer blade life.

To measure your lawnmower blade:
1) Measure the blade diagonally from cutting tip to cutting tip. For mulching blades measure on the back to ensure straight lines.
2) Measure the width at the widest part of the blade
3) Measure the center hole
4) Measure the center to center distance between the outer holes
5) Refer to our chart below to choose your blade accordingly

Part # Replaces Ariens OEM Blade Type Length Center
Hole
Outer Holes Center Width Thickness
302-620 08899100 / 08979600 / 09081200
Silver Streak
Toothed Blade
20 1/2" 5/8" none none 2 1/2" 0.203"
302-820 08899100 / 08979600 / 09081200
Silver Streak
Toothed Blade
20 1/2" 5/8" none none 3" 0.250"
305-589 03624700 / 03624751 / 03624759 / 36247
Requires 2 for 40" cut
Medium-Lift 20 7/16" 3/4" none none 2 1/2" 0.203"
305-730 01128500 / 01137000 / 01137051
01137059 / 11285 / 11370 / 1137059

Fits 911000, Zone Start models
Medium-Lift 20 1/2" 3/8" none none 2 3/4" 0.134"
315-792 03253900 / 08899100 / 08979600 / 09081200
Requires 3 for 60" cut
Hi-Lift 20 1/2" 5/8" none none 2 1/2" 0.250"
320-402 09246600
Requires 3 for 60" decks
Hi-Lift 20 1/2" 5/8" none none 2 1/2" 0.250"
355-036 08899100 / 08979600 / 09081200
Requires 3 for 60" decks
Notched Hi-Lift 20 1/2" 5/8" none none 2 1/2" 0.203"
355-331 08899100 / 08979600 / 09081200
Requires 3 for 60" decks
Notched Hi-Lift 20 1/2" 5/8" none none 2 1/2" 0.250"

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