Feature: 1. OE Number: The reference OE number of this ignition coil is 573935701, which is cast and designed according to the original data of the chainsaw. 2. Compatibility: Chainsaw ignition coil replaces Jonsered CS2240, replaces Jonsered CS2245, replaces Husqvarna 435, replaces Husqvarna 445. 3. Function: Increases ignition energy intensity for easy starting. Helps improve combustion efficiency and enhance electrical performance. 4. High quality: The ignition coil is made of high quality copper which is sturdy and durable, it will make your chainsaw look like new, giving you excellent using experience. 5. Easy Installation: All you need to do is remove the original broken or damaged igniter inside the chainsaw and install the igniter in the same way. Specification: Item Type: Ignition Coil Module OE Number: 573935701 Material: Copper Compatibility: Replacement for Jonsered CS2240 Chainsaw Replacement for Jonsered CS2240 S Chainsaw Replacement for Jonsered CS2245 Chainsaw Replacement for Jonsered CS2245 S Chainsaw Replacement for Jonsered CS2250 S Chainsaw Replacement for Husqvarna 435 E Chainsaw Replacement for Husqvarna 435 Chainsaw Replacement for Husqvarna 440 E Chainsaw Replacement for Husqvarna 445 Chainsaw Replacement for Husqvarna 445 E Chainsaw Replacement for Husqvarna 450 Chainsaw Replacement for Husqvarna 450 E Chainsaw Package List: 1 x Ignition Coil Note : Please check the part number of your item, matching information is F or reference only. If you are not sure about the item, please contact us before purchasing to avoid unnecessary returns, thank you!