Tecumseh 610633 Center Ignition Coil

The Tecumseh 610633 Center Ignition Coil is a genuine OEM magneto ignition coil that provides the high-voltage spark required for reliable combustion in Tecumseh small engines. Commonly used on older Tecumseh engines found in lawn mowers, snow blowers, tillers, generators, and other outdoor power equipment, it installs beneath the flywheel and ignition stator assembly and converts the flywheel’s magnetic energy into the spark that fires the plug. Built with a laminated steel core and copper windings, it features a primary resistance of 0.4–0.6 Ω and a secondary operating current of about 1.8 A. This center coil serves as an OEM replacement for failed or weak ignition coils causing no-start, weak spark, or intermittent ignition, and is compatible with Tecumseh magneto ignition systems. It carries the Manufacturer Part Number 610633 and is commonly replaced by Tecumseh 610785A, 610747, or Oregon 33-346. Manufactured by Tecumseh Products Company, this part is designed to meet the original specifications of Tecumseh engines and their flywheel-based ignition systems.