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Model Number 911514 911515 911516 911517
Description Name LM21S LM21SE LM21SW LM21SC
Engine Manufacture Briggs & Stratton Briggs & Stratton Briggs & Stratton Robin
Cycles Four Four Four Four
HP (3600RPM) 4.37 4.37 4.37 5.3
Fuel Tank Capacity - qt (L) 22 oz. (0.65) 22 oz (0.65) 22 oz (0.65) 2 (1.9)
Fuel Unleaded Unleaded Unleaded Unleaded
Primer Bulb Standard Standard Standard N/A
Throttle/Choke Control N/A N/A N/A Standard
Starting Recoil Electric/Recoil Recoil Recoil
Cylinder Bore Aluminum Aluminum Aluminum Cast Iron Sleeve
Pressurized Oil System Splash Splash Splash Pressurized
Governed RPM 3000+/-100 3000+/-100 3000+/-100 3000+/-100
Crank Case Capacity - oz (L) 22 (0.65) 22 (0.65) 22 (0.65) 17 (0.5)
Air Cleaner Paper Element Paper Element Paper Element Dual Element
Engine Oil Type SAE 30 SAE 30 SAE 30 SAE 30
Spark Plug Gap 0.03 0.03 0.03 0.03
Differential Standard Standard N/A Standard
Variable Speeds-MPH (KPH) 0-4 (0-6.4) 0-4 (0-6.4) N/A 0-3.5 (0-5.6)
Mower Deck Gauge 14 Gauge Stamped
Steel 14 Gauge Stamped
Steel 14 Gauge Stamped
Steel 14 Gauge Stamped
Steel
Baked Powder Paint Standard Standard Standard Standard
Cutting Width - in (cm) 21 (53.3) 21 (53.3) 21 (53.3) 21 (53.3)
Cutting Height - in (cm) 6 Positions 6 Positions 6 Positions 6 Positions
1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9)
Folding Handlebar Standard One Piece Standard One Piece Standard One Piece Standard One Piece
Adjustable Handlebar 4 Position 4 Position 4 Position 4 Position
Front Wheel Diameter - in (cm) 7.5 (19.1) 7.0 (17.8) 7.5 (19.1) 7.5 (19.1)
Rear Wheel Diameter - in (cm) 10.5 (26.7) 10.0 (25.4) 10.5 (26.7) 10.5 (26.7)
Side Discharge Standard Standard Standard Standard
Bagger Standard Standard Standard Standard
Mulching Capability Standard Standard Standard Standard
Attachments (* denotes it comes with unit)
Dethatcher 71102400 71102400 N/A 71102400
Mulchmaster Package * * * 71102700
Leaf Shredder 71102800 71102800 71102800 71102800
Side Discharge Chute ****
Rear Bagger ****
Swivel Wheel Kit 71103300 71103300 * 71103300
Rear Discharge Chute 71103200 71103200 71103200 71103200
Rear Roller Kit 71103400 71103400 71103400 71103400
Mulching Kit 71103500 71103500 71103500 71103500