Troybilt Front-engine lawn tractor Parts — Browse All Models

Top-selling Troy-Bilt front-engine lawn tractor replacement parts

• Ignition switch. A riding mower ignition switch supplies power to the electrical components of the engine. When you turn the key, a metal contact transmits energy to the various connections on the switch. The ignition switch includes a lock that allows the switch to turn only when the tumblers in the lock are in the correct position.
• Mandrel assembly. The mandrel assembly consists of the housing, bearings, and blade shaft. The mandrel mounts to the mower housing and has a pulley on top. When the user engages the blades, a belt turns the pulley on the top of the mandrel and spins the mower blade.
• Mower blade. The mower blade is affixed to the end of a shaft and has one sharp edge on the top side. As the shaft spins, the sharp edge cuts the grass. Because of the upward angle of the sharp edge, the grass blows upward and out to the discharge chute.
• Starter solenoid. The starter solenoid is a high-current switch that sends power to the starter motor to spin the engine when you turn the ignition key to the start position.

Troubleshooting your Troy-Bilt front-engine lawn tractor when its deck vibrates

If the mower vibrates when you engage the cutting blades, there might be a problem with the blade drive system. Deck vibration can be caused by an unbalanced blade, worn pulley or mandrel, bad blade belt or debris caught inside a pulley. Loose nuts or bolts on the pulleys, mandrels or blades can also cause vibration. Remove the mower deck and re-tighten all fasteners. Check for wear on pulleys, mandrels and blades. Replace any worn or damaged components.