Efficient Ignition: String trimmer ignition coil module provides a strong and stable spark, works with the engine's ignition timing system to ensure the spark plug fires at the right moment for quick start and stable operation of the mower Voltage Boost: Ignition coil module converts low-voltage current from the mower’s power supply into high-voltage current, ensuring the spark plug generates sufficient spark for efficient combustion and improved mower performance Reliable and Durable: Ignition wires made from high-quality metal materials with advanced manufacturing process, offering high strength, stable structure, wear resistance, corrosion resistance, high temperature resistance, and consistent performance in various operating conditions Compatible Models: Ignition coil module fits 129C, 129L, 129LK, 129RJ lawn mowers; compatible with Jonsered BC2228, GT2228, GTS2228 models; replaces 597383401, 579525402; please confirm your model before purchase Easy to Install: Lawn mower ignition coil module is designed for direct replacement, plug-and-play setup allows for easy installation; ensure the mower is completely turned off before installing Color: Black Material: Plastic Package Contents: 1 x Lawn Mower Ignition Wire Note: Light reflection and different displays may cause slight color variation between the image and actual item. Measurement error allowed within +/- 1-3 cm. Only the above package content is included; other items are not part of this product