Compatible with MARUYAMA lawn mowers AE420, BC420, BC420H, BC420HE, BC420H-RS (cylinder and piston assembly).

This complete engine rebuild kit is specifically designed for MARUYAMA brushcutters/lawnmowers. It is compatible with many Maruyama models, including the AE420, BC420, BC420H, BC420HE, and BC420H-RS. The kit includes a complete cylinder block with piston, allowing for the complete replacement of all combustion chamber components. It offers a professional solution for serious engine problems such as cylinder seizure, severe wear, power loss, or starting difficulties. Important information: Compatible models: MARUYAMA brushcutters of the AE420, BC420H, BC420HE, and BC420H-RS series (please check your specific model on the nameplate of your machine). Scope of delivery: Typically, one cylinder block (cylinder) and one piston assembly (piston, piston rings, piston pin, circlips, etc.) for the complete replacement of cylinder components. Product Features: Perfect Model Compatibility: This cylinder block has been precisely matched to the bore, stroke, transfer port, and mounting holes of Maruyama engines in this series, guaranteeing optimal compatibility with the listed models. Durable, High-Quality Components: The cylinder block is made of a wear-resistant alloy and can undergo hardening processes such as chrome plating. The piston is made of a high-strength aluminum alloy, ensuring excellent heat conduction and high wear resistance, thus restoring the engine's original performance. Complete Performance Restoration: Directly addresses issues such as starting problems, power loss, blue smoke, or compression loss due to cylinder wall scoring, piston ring wear and seizure, piston skirt damage, etc. Complete Rebuild Kit: Provides a perfectly matched cylinder block and piston assembly—a crucial step in restoring compression and performance during engine rebuilds or repairs. Wide Range of Applications: A single kit fits many popular Maruyama 420 models, simplifying parts procurement.