Stihl Replacement Pop Up Piston Assembly, Replaces Part Number 1144-030-2001, Quality Reproduction For Stihl Model MS661 Piston Is 56mm In Diameter. This Piston Will Give You Extra Compression And Extra Power.
- This Stihl piston kit delivers extra power in comparison to standard pistons! Supercharge your old Stihl chainsaw!
- Not made in China or Taiwan, Ships quickly from the USA