DUKE'S MOLY COATED PISTON AND NIKASIL CYLINDER FITS STIHL MS311 MS391 49MM TOP MOVER KR GT-200R (10001001 - 10002729) Curved

GT-200R (10001001 - 10002729) Curved Shaft Grass Trimmer

HUSQVARNA 281 AND 288

PE-260 (S68411001001-S68411999999) Edger

SRM-260U (05001001 - 05001870) Straight Shaft Trimmer / Brushcutter

IGNITION) Where Used: · GT-230 S/N: 05001001 - 05999999-->Ignition · GT-230 S/N: 07001001 - 07999999-->Ignition · GT-230 S/N: S85712001001 - S85712999999-->Ignition · GT-230 S/N: S85811001001 - S85811999999-->Ignition · GT-230 S/N: S85913001001 - S85913999999-->Ignition · GT-230 S/N: T49414001001 - T49414999999-->Ignition · GT-231 S/N: 06001001 - 06999999-->Ignition · HCA-260 S/N: 05001001 - 05999999-->Ignition · HCA-260 S/N: 06001001 - 06999999-->Ignition · HCA-260 S/N: 07001001 - 07999999-->Ignition · HCA-260 S/N: S69211001001 - S69211999999-->Ignition · HCA-260 S/N: S77812001001 - S77812999999-->Ignition · HCA-260 S/N: S84813001001 - S84813999999-->Ignition · HCA-261 S/N: 06001001 - 06999999-->Ignition · PAS-230 S/N: S67711001001 - S67711001223-->Ignition · PAS-230 S/N: S67711001224 - S67711001252-->Ignition · PAS-230 S/N: S67711001253 - S67711002246-->Ignition · PAS-230 S/N: S67711002247 - S67711003695-->Ignition · PAS-230 S/N: S67711003696 - S67711999999-->Ignition · PAS-230 S/N: S75212001001 - S75212007738-->Ignition · PAS-230 S/N: S75212007739 - S75212008805-->Ignition · PAS-230 S/N: S75212008806 - S75212021000-->Ignition · PAS-230 S/N: S75212021001 - S75212025631-->Ignition · PAS-230 S/N: S75212025632 - S75212999999-->Ignition · PAS-230 S/N: S82713001001 - S82713999999-->Ignition · PAS-230 S/N: T49714001001 - T49714999999-->Ignition · PAS-260 S/N: 05001001 - 05999999-->Ignition · PAS-260 S/N: 06001001 - 06999999-->Ignition · PAS-260 S/N: 07001001 - 07999999-->Ignition · PAS-260 S/N: S67811001001 - S67811999999-->Ignition · PAS-260 S/N: S75312001001 - S75312999999-->Ignition · PAS-260 S/N: S82813001001 - S82813999999-->Ignition · PAS-261 S/N: 06001001 - 06999999-->Ignition · PE-230 S/N: 05001001 - 05011200-->Ignition · PE-230 S/N: 05011201 - 05999999-->Ignition · PE-230 S/N: 06001001 - 06999999-->Ignition · PE-230 S/N: 07001001 - 07999999-->Ignition · PE-230 S/N: S68311001001 - S68311001128-->Ignition · PE-230 S/N: S68311001129 - S68311002107-->Ignition · PE-230 S/N: S68311002108 - S68311003595-->Ignition · PE-230 S/N: S68311003596 - S68311999999-->Ignition · PE-230 S/N: S75612001001 - S75612010477-->Ignition · PE-230 S/N: S75612010478 - S75612022149-->Ignition · PE-230 S/N: S75612022150 - S75612026122-->Ignition · PE-230 S/N: S75612026123 - S75612999999-->Ignition · PE-230 S/N: S83113001001 - S83113999999-->Ignition · PE-230 S/N: S83113001533 - S83113002063-->Ignition · PE-230 S/N: T49614001001 - T49614999999-->Ignition · PE-231 S/N: 06001001 - 06999999-->Ignition · PE-260 S/N: 05001001 - 05999999-->Ignition · PE-260 S/N: 06001001 - 06999999-->Ignition · PE-260 S/N: 07001001 - 07999999-->Ignition · PE-260 S/N: S68411001001 - S68411999999-->Ignition · PE-260 S/N: S75712001001 - S75712999999-->Ignition · PE-260 S/N: S83213001001 - S83213999999-->Ignition · PE-261 S/N: 06001001 - 06999999-->Ignition · PPT-230 S/N: E07711001001 - E07711999999-->Ignition · PPT-230 S/N: E08312001001 - E08312999999-->Ignition · PPT-230 S/N: E08913001001 - E08913999999-->Ignition · PPT-260 S/N: 05001001-05999999-->Ignition · PPT-260 S/N: 06001001-06999999-->Ignition · PPT-260 S/N: 07001001-07999999-->Ignition · PPT-260 S/N: E07911001001 - E07911999999-->Ignition · PPT-260 S/N: E08512001001 - E08512999999-->Ignition · PPT-260 S/N: E09113001001 - E09113999999-->Ignition · PPT-261 S/N: 06001001-06999999-->Ignition · SHC-260 S/N: 05001001 - 05999999-->Ignition · SHC-260 S/N: 06001001 - 06999999-->Ignition · SHC-260 S/N: 07001001 - 07999999-->Ignition · SHC-260 S/N: S69011001001 - S69011999999-->Ignition · SHC-260 S/N: S77612001001 - S77612999999-->Ignition · SHC-260 S/N: S84613001001 - S84613999999-->Ignition · SHC-261 S/N: 06001001 - 06999999-->Ignition · SRM-230 S/N: 05001001 - 05999999-->Ignition · SRM-230 S/N: 06001001 - 06999999-->Ignition · SRM-230 S/N: 07001001 - 07999999-->Ignition · SRM-230 S/N: S65611001001 - S65611018706-->Ignition · SRM-230 S/N: S65611018707 - S65611054954-->Ignition · SRM-230 S/N: S65611054955 - S65611069327-->Ignition · SRM-230 S/N: S65611069328 - S65611999999-->Ignition · SRM-230 S/N: S73112001001 - S73112127551-->Ignition · SRM-230 S/N: S73112127551 - S73112328927-->Ignition · SRM-230 S/N: S73112328928 - S73112429314-->Ignition · SRM-230 S/N: S73112429315 - S73112999999-->Ignition · SRM-230 S/N: S80613001001 - S80613999999-->Ignition · SRM-230 S/N: T49514001001 - T49514999999-->Ignition · SRM-230 S/N: U07815001001 - U07815999999-->Ignition · SRM-230S S/N: 05001001 - 05999999-->Ignition · SRM-230S S/N: 06001001 - 06999999-->Ignition · SRM-230S S/N: 07001001 - 07999999-->Ignition · SRM-230S S/N: S65711001001 - S65711999999-->Ignition · SRM-230S S/N: S73212001001 - S73212999999-->Ignition · SRM-230S S/N: S80713001001 - S80713999999-->Ignition · SRM-230U S/N: 05001001 - 05999999-->Ignition · SRM-230U S/N: 06001001 - 06999999-->Ignition · SRM-230U S/N: 07001001 - 07999999-->Ignition · SRM-230U S/N: S67211001001 - S67211999999-->Ignition · SRM-230U S/N: S74712001001 - S74712999999-->Ignition · SRM-230U S/N: S82213001001 - S82213999999-->Ignition · SRM-231 S/N: 06001001 - 06999999-->Ignition · SRM-231S S/N: 06001001 - 06999999-->Ignition · SRM-231U S/N: 06001001 - 06999999-->Ignition · SRM-260 S/N: 05001001 - 05999999-->Ignition · SRM-260 S/N: 06001001 - 06999999-->Ignition · SRM-260 S/N: 07001001 - 07999999-->Ignition · SRM-260 S/N: S66211001001 - S66211999999-->Ignition · SRM-260 S/N: S73712001001 - S73712999999-->Ignition · SRM-260 S/N: S81213001001 - S81213999999-->Ignition · SRM-260S S/N: 05001001 - 05999999-->Ignition · SRM-260S S/N: 06001001 - 06999999-->Ignition · SRM-260S S/N: 07001001 - 07999999-->Ignition · SRM-260S S/N: S66311001001 - S66311999999-->Ignition · SRM-260S S/N: S73812001001 - S73812999999-->Ignition · SRM-260S S/N: S81313001001 - S81313999999-->Ignition · SRM-260SB S/N: 05001001 - 05999999-->Ignition · SRM-260SB S/N: 07001001 - 07999999-->Ignition · SRM-260U S/N: 05001001 - 05999999-->Ignition · SRM-260U S/N: 06001001 - 06999999-->Ignition · SRM-260U S/N: 07001001 - 07999999-->Ignition · SRM-260U S/N: S67411001001 - S67411999999-->Ignition · SRM-260U S/N: S74912001001 - S74912999999-->Ignition · SRM-260U S/N: S82413001001 - S82413999999-->Ignition · SRM-261 S/N: 06001001 - 06999999-->Ignition · SRM-261S S/N: 06001001 - 06999999-->Ignition · SRM-261SB S/N: 06001001 - 06999999-->Ignition · SRM-261T S/N: 06001001 - 06999999-->Ignition · SRM-261T S/N: 07001001 - 07999999-->Ignition · SRM-261T S/N: S66411001001 - S66411999999-->Ignition · SRM-261T S/N: S73912001001 - S73912999999-->Ignition · SRM-261T S/N: S81413001001 - S81413999999-->Ignition · SRM-261U S/N: 06001001 - 06999999-->Ignition

DUKE'S MOLY COATED PISTON AND NIKASIL CYLINDER FITS STIHL MS311 MS391 49MM TOP MOVER KR GT-200R (10001001 - 10002729) CurvedONLY FITS MS311 AND MS391 WITH 3 BOLT INTAKE, SOME MODELS HAVE 4 BOLT INTAKE. CHECK YOUR MACHINE TO BE CERTAIN THE DUKE'S SAW SALVAGE MOLYBDENUM DISULFIDE COATED PISTON. LESS OVERALL FRICTION AND CYLINDER WALL WEAR. MOLYBDENUM DISULFIDE IS COMMONLY KNOWN AS "MOLY" OR "MOS2." AWESOME QUALITY PISTON WITH THE STIFFER CAST IRON RINGS AND BEST QUALITY PIN CLIPS. The moly coating is seen as a sacrificial lubricant and creates a surface that is slicker than