Replacement ignition coil designed for small engine tiller and trimmer models. Use this directfit replacement to restore reliable spark and get engines starting again quickly. Key benefits Restores ignition quickly: Replaces a faulty coil to eliminate hard starting, nostart, or intermittent spark issues. Direct fit for specified models: Matches the part number 75309885 and fits TBC304 TB304H TB304S models for straightforward installation. Durable construction: Built to withstand normal outdoor use and vibration typical of handheld and walkbehind garden equipment. Simple installation: Designed as a dropin replacement that uses existing mounts and connections for faster repairs and less downtime. What it does and how it helps Function: Converts lowvoltage input into the voltage spark needed by the spark plug so the engine can ignite fuel and run. Problem solved: Replaces a worn or failed coil to stop misfires, rough idling, engine stalling, and starting failures. Performance: Provides consistent spark output under typical operating conditions, helping engines run smoothly across a range of RPMs. Compatibility and specifications Compatibility only reference: Compatible with TroyBilt TBC304 TB304H TB304S models, part number 75309885. Fit: Directfit replacement designed to use the original mounting points and plug connection. Application: Intended for small 2cycle and 4cycle garden tool engines used in tillers and trimmers. Use scenarios Routine : a failed coil during a maintenance session to restore reliable starting after seasonal storage. Field service: Swap in a replacement coil when a tiller or trimmer is stalling or misfiring on the job to reduce downtime. Preventive spare: Keep a replacement on hand for quick roadside repairs during landscaping or property maintenance work. Package includes one ignition coil replacement designed for the listed models and part number. Check compatibility with your equipment model and part number prior to to ensure proper fit.