DUKE'S PERFORMANCE COATED PISTON FITS HUSQVARNA 555 562XP 46MM MS311 · SRM-260U S/N: S74912001001 -

· SRM-260U S/N: S74912001001 - S74912999999-->Engine

MOLYBDENUM DISULFIDE COATED PISTON

SRM-260S (07001621 - 07999999) Straight Shaft Trimmer / Brushcutter

· PB-260L S/N: 07001001 - 07999999-->Engine

1145-020-1200

DUKE'S PERFORMANCE COATED PISTON FITS HUSQVARNA 555 562XP 46MM MS311 · SRM-260U S/N: S74912001001 -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 the traditional bare aluminum. What this creates is a lower friction surface overall and as long as the coating