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Product Information

  • Model #: 16401
  • Serial #: 890000001 - 899999999
  • Product Type: Walk Behind Mowers

Assembly Drawings

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  • Model #
    16401
  • Serial #
    890000001 - 899999999
  • Product Name
    Side Discharge Mower, SD-21S
  • Product Brand
    Toro
  • Product Type
    Walk Behind Mowers
  • Product Series
    21" Side Discharge
  • Chassis Type
    Cast Deck WPM
  • Swath
    21 inch
  • Discharge
    Side
  • Engine/Motor Manufacturer
    Briggs & Stratton
  • Engine/Motor Size
    4.5 hp
  • Engine/Motor Type
    4 Cycle CARB1, EPA1
  • Engine Starter
    Recoil
  • Transmission Type
    Gear
  • Drive System: Ground Speed
    3.26 mph
  • Chassis: Height of Cut Range
    1-3"; 1/2" increments
  • Drive System: Gearbox Lubricant
    3 oz. (90ml) SAE 90 GL5 or higher
  • Engine: Engine Oil Type
    20 oz. (.6l) 30w or 10w-30 / API SH or higher
  • Engine: Engine Speed
    3000±150 RPM
  • Engine: Ignition Coil Air Gap
    .006-.010" / .15-.25mm
  • Engine: Spark Plug
    Champion RJ19LM
  • Engine: Spark Plug Gap
    .030"/ .76mm

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