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Briggs & Stratton Engine Specifications
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21 HP VANGUARD ™ Model Series 381400

Briggs & Stratton Small Engines

Displacement 38.26 cu. in. (627 cc)

Bore 2.97 in. (75 mm)

Stroke 2.75 in. (70 mm)

Oil Capacity:
48 fl. oz. (1.42 L) w/o filter
56 fl. oz. (1.66 L) with filter


  • Dura-Bore ™ cast iron cylinder sleeve for extended life
  • Float carburetor for consistent easy starting
  • Maintenance-free Magnetron � electronic ignition for quick, dependable starts
  • Dual-Clean ™ air cleaner pleated paper filter with a foam pre-cleaner ensures maximum protection for extended engine life
  • Full pressure lubrication with oil cooler and spin-on oil filter assures controlled lubrication for extended component life
  • Overhead valve design (OHV) for cooler operation and longer valve life
  • Buyer protection package provides two-year commercial engine warranty




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