Premium Bearings & Oil Seals: High accuracy ball bearings withstand extreme temperatures and wear, while rubber oil seals leaks and air intakes for extended machine life Complete Crankshaft Repair set: Includes a crankshaft assembly, 2 bearings, piston pin, and 2 oil seals for comprehensive repairs, eliminating the hassle of sourcing mismatched individual components High Strength Alloy Steel Construction: accuracy crankshaft with dynamic balancing and reinforced connecting rod enhances durability, power output, and smooth operations under heavy workloads Accuracy Weight & Installation: At 510g, the set matching OEM weight specifications for optimal balance, reducing and vibrations while ensuring seamless integration with your chainsaw ' s internal structure Great Fit for Chainsaws: Specifically designed for MS361, MS361C, and MS341 models, this 6 piece crankshaft set ensures direct replacement of damaged parts without modifications, maintaining original equipment standards, Manufacturer: NVOQILIN