Part

MTD BS-591868 spark plug (Briggs & Stratton 591868)

Checked October 6, 2026 · Fits 30 models

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MTD BS-591868 Replaces BS-799876

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Models it fits

Troy-Bilt

30 models

• TB210 / TB370 and others

  • 12A-A25S011
  • 12A-A25S066
  • 12A-A25U211
  • 12A-A25U711
  • 12A-A25U766
  • 12ABD3BV766
  • 12ABD35U766
  • 12ACC3BJ066
  • 12ACC35S066
  • 12AGA2BJ011
  • 12AGA2BJ066
  • 12AGA25S011
  • 12AGA25S066
  • 12AGA26G011
  • 12AGA26G066
  • 12AGA26G711
  • 12AGA26G766
  • 12AVB2BV711
  • 12AVB2BV766
  • 12AVB25S011
  • 12AVB25U211
  • 12AVB25U711
  • 12AVB25U766

• TB330 / TB320

  • 12AKC35U766
  • 12AKD35U766
  • 12ALC35S766
  • 12AVC35U711
  • 12AVC35U766

• TB380ES / TB280 ES

  • 12ACC3BJ766
  • 12AGA2BJ711

Sources

• Operator's Manual, Self Propelled Mower — Models TB230, TB260, & TB280 ES (Replacement Parts page 24: 'BS-591868 Spark Plug (Briggs & Stratton)'), form 769-08408
• Operator's Manual, Self Propelled Mower — Models TB230, TB260, & TB280 ES (Replacement Parts page 24: 'BS-799876 Spark Plug (Briggs & Stratton)'; earlier edition of the same manual), form 769-07346
• Troy-Bilt TB 230 (12AVB25U711) 2013 IPL, Quick Reference: 'BS-591868 Spark Plug'
• Troy-Bilt TB 230 (12AVB25U711) 2012 IPL, Quick Reference: 'BS-799876 Spark Plug' superseded to BS-591868