Complete 52 mm Cylinder and Piston Kit for 046 MS460 Chainsaw, part number 1128 020 1221 This replacement cylinder and piston kit is designed as a directfit solution for 046 MS460 chainsaw models. The kit restores engine compression and running performance for 52 mm bore engines, helping to a worn or damaged saw to reliable operation. Key benefits Direct compatibility: Specified for 046 MS460 chainsaw models, part number 1128 020 1221, fits 52 mm bore engines. Restores performance: Replaces worn cylinder and piston components to recover compression and smoother engine operation. Durable construction: Precisionmachined components made from durable materials for consistent fit and service life. Simplifies : A complete replacement kit intended to reduce the time and parts sourcing needed for an engine rebuild. Features and specifications Bore size: 52 mm. Includes the cylinder and piston components identified by part number 1128 020 1221. Designed for use in standard 52 mm chainsaw twostroke engine assemblies. Engineered for accurate tolerances to match original equipment fit and function. Practical applications a chainsaw that has low compression due to a scored piston or worn cylinder. Rebuild an engine after overheating or seizure where piston and cylinder replacement is required. Routine engine refurbishment during scheduled maintenance to extend the usable life of the saw. Installation and maintenance notes Install using proper tools and torque settings for wrist pin, circlips, and mounting fasteners. Follow the equipment service manual for disassembly and reassembly procedures. Inspect related components such as rings, wrist pin clips, crankshaft sealing surfaces, and gaskets during replacement and as needed. After installation, runin procedure as recommended in the service manual will help seat components and optimize performance. This kit provides the core cylinder and piston components specified by part number 1128 020 1221 for 52 mm chainsaw engines compatible with 046 MS460 models, offering a practical option for and engine refurbishment.