Features: 100% Not an OEM STIHL product, this will not have any Stihl part numbers on it. It's 100% aftermarket. Model 029 (45mm), 029 Super (46mm), 039 (49mm), MS290 (46mm), MS310 (47mm), and MS390 (49mm) all belong to the same 1127 Series family and all can use this engine. THIS IS A 49MM KIT. SHORTBLOCK INCLUDES A NEW CYLINDER, PISTON ASSEMBLY, PISTON RINGS, WRIST PIN AND CLIPS, ENGINE PAN, WRIST PIN BEARING, CRANKSHAFT, CRANKSHAFT BEARINGS AND SEALS. SHORT BLOCK IS READY FOR ASSEMBLY, REMOVE PAN, APPLY CRANKCASE SEALER, INSTALL INTO ENGINE HOUSING AND TORQUE PAN BOLTS. WHAT YOU SEE IS WHAT YOU WILL RECEIVE. .
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