18" Blades for Gravely Mowers

These Stens 18 inch Replacement Blades are excellent for Gravely mowers and were built with precision and heat treated for durability.

302-618 Replacement Blade.

302-618 Replacement Blade.

  • Toothed Blade
    (302-618)
    USD $21.36
  • Hi-Lift Toothed Blade
    (302-818)
    USD $28.28
    • Buy 2 for USD $25.47 each and save 10%
    • Buy 3 for USD $24.05 each and save 15%
  • Notched Air-Lift Blade
    (340-121)
    USD $26.35
  • Blade
    (340-158)
    USD $16.89
    • Buy 2 for USD $15.21 each and save 10%
    • Buy 3 for USD $14.36 each and save 15%
  • Hi-Lift Blade
    (355-061)
    USD $16.00

Details

Rittenhouse carries the Stens Line of replacement blades for your Gravley Mowers. The table below will help determine which one you may need.

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:

  • Measure the blade diagonally from cutting tip to cutting tip. For mulching blades measure on the back to ensure straight lines.
  • Measure the width at the widest part of the blade.
  • Measure the center hole.
  • Measure the center to center distance between the outer holes.
  • Refer to our chart below to choose your blade accordingly.

Part # Replaces Gravely OEM Blade Type Length Center
Hole
Width Thickness Fits/Notes
302-618 00273100 / 00450300 / 04916400 /
4916400
Toothed

Silver Streak
18" 5/8" 2 1/2" 0.203" Requires 2 for 32" deck, 3 for 52" deck
302-818 00273100 / 00450300 / 04916400 /
4916400
Toothed
Silver Streak
18" 5/8" 3" 0.250" Requires 2 for 32" deck, 3 for 52" deck
340-121 GDU10231 Notched
Air-Lift
18" 5/8" 3" 0.203" Requires 2 for 36" deck, 3 for 52" deck
340-158 00450300 / 04916400 Notched
Air-Lift
18" 5/8" 2 1/2" 0.203" Requires 2 for 36" deck, 3 for 52" deck
355-061 00450300 / 03253800 / 04916400 Hi-Lift 18" 5/8" 2 1/2" 0.203" Requires 2 for 32" deck, 3 for 52" deck

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