Oregon 91PX033G AdvanceCut S33 Saw Chain, 3/8" Low Profile Pitch, .050" Gauge, 33 Drive Links Type_Gear The 49mm piston is a

The 49mm piston is a genuine replacement part specifically designed for Stihl MS391 chainsaws

Low stretch at low loads for less bounce while climbing

The updated design features sealed bearings in place of bushings

With its durable construction

000 lbs) tensile and is proof load tested

Oregon 91PX033G AdvanceCut S33 Saw Chain, 3/8" Low Profile Pitch, .050" Gauge, 33 Drive Links Type_Gear The 49mm piston is a91PX chain is for homeowners and occasional users who want a low vibration and low kickback saw chain. The chamfer chisel cutters' twin cutting corners offer outstanding performance. They are durable, easy to maintain and forgiving, comparable to round cornered chains. Bumper drive links paired with depth guage design offers reduced kickback and strong performance.