NGK, DPR6EA-9
NGK, HONDA: Model: TRX450ES, S, Year: 1999-1998, ENGINE: 450, STK#: 5531, GAP: 0.036", NOTE: FourTrax Fourman; Model: TRX450S, Year: 2001-2000, ENGINE: 450, STK#: 5531, GAP: 0.035", NOTE: Rubicon
NGK, HONDA: Model: TRX450ES, S, Year: 1999-1998, ENGINE: 450, STK#: 5531, GAP: 0.036", NOTE: FourTrax Fourman; Model: TRX450S, Year: 2001-2000, ENGINE: 450, STK#: 5531, GAP: 0.035", NOTE: Rubicon