Description
When you turn the key and get nothing but silence, it’s usually one of three things – dead battery, bad starter, or a worn-out ignition switch. If your lights and gauges work but the engine won’t fire up, this replacement ignition switch from TISCO will get your International Harvester back to starting reliably every time you turn the key.
What You’re Getting
- Direct replacement switch that matches your original factory wiring
- Heavy-duty contacts handle starter current without burning or pitting
- Weather-resistant construction keeps moisture and dirt out
- Multiple switch positions control engine, accessories, and starter functions
- TISCO quality that’s built to handle daily farm use
Built for Real Farm Work
This switch fits a wide range of International Harvester models including the Hydro 84 and various series from the 300s through 800s – these are the workhorses that handle everything from cultivating and disking to loader work and hay operations. Whether you’re running a smaller utility model or a bigger row-crop machine, this is the same type of switch that controlled your tractor’s electrical system from the factory.
Made to Last
Your ignition switch takes more abuse than most parts on the tractor – it’s constantly being turned, jostled by vibration, and exposed to temperature changes inside the cab. This TISCO replacement is built with quality materials and contacts that won’t wear out prematurely, giving you reliable starts season after season.
Installation Notes
Before you start, disconnect the battery to avoid any electrical shorts. Take a picture or label each wire before removing the old switch – even if it’s not working, the wire positions tell you where everything goes. The switch typically has multiple terminals for battery power, ignition, starter, and accessories. Clean all wire connections and apply a little dielectric grease to prevent future corrosion problems.
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