503870274 503870276 Cylinder Piston Kit For 340 340E 370 345E This cylinder piston kit is designed for compatibility with models 340, 340E, 345, and 345E.It includes a cylinder and piston set engineered to meet specifications for proper fit and function.The components are built for and consistent performance under standard operating conditions.This kit supports engine rebuilds or replacements where precise dimensional accuracy and materials are required.Installation should be performed by qualified personnel familiar with small engine mechanics.