DUKE'S MOLY COATED PISTON AND NIKASIL CYLINDER FITS STIHL MS311 MS391 49MM

ONLY 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 the traditional bare aluminum. What this creates is a lower friction surface overall and as long as the coating remains on the piston it is quite clear there is no skirt wear.

Long term you'll see less overall skirt wear, less heat and friction and less overall plating wear. The moly coating is industry standard in performance ATVs, Dirtbikes, outboards, etc.

Thank you for checking us out!  In this listing you will find THE DUKE’S SAW SALVAGE high quality NIKASIL coated cylinder.  We stand behind these cylinders and are convinced out their quality and durability.  These are definitely a better option than the bottom-end $10 cheap chrome kits.

This offers a number of benefits for our customers:

• Considerable quality upgrade over cheaper kits
• Better wear resistance and durability
• NIKASIL cylinder coating
• Better internal machining and port shaping

With these kits you can get the added value of the piston tied together with high quality cylinder for a reasonable price to help get your equipment back up and running again.  We believe these kits ride the price line right down the center of the road between the most expensive OEM kits and the very least expensive you can buy and offer a quality and value that surpass the price.

DIFFERENCE YOU CAN SEE AND FEEL

Our kits come from trusted sources and manufacturers that have a proven history of offering good quality, we source our parts worldwide to offer our customers the best value for their money. 

THE DUKE’S SAW SALVAGE QUALITY NIKASIL CYLINDER KITS

Nikasil coated cylinders are known for:

• Superior wear resistance
• Improved heat dissipation
• Lower friction surface
• Coating is impregnated into substrate as opposed to plating, no risk of plating flaking off

Feel confident in your purchase because we will warrant any manufacturer defect for the first 30 days if the kit has been installed properly on a unit that has been proven to not have an air leak or bearing damage. We cannot cover lean seizures, debris damage or other installation errors.  If you are unhappy with the fit and finish of the product we will gladly accept return of the kit if it is in “LIKE NEW” condition.