4-Position Keyed Ignition Switch for Massey Ferguson 300/4200/4300/5200/5300 Series Diesel Tractors SKU: QT6758

A failing ignition switch turns reliable equipment into a morning headache—loose connections cause intermittent starting, worn contacts prevent proper circuit activation, and broken heat/glow positions leave diesel engines struggling in cold weather. This 4-position keyed replacement restores dependable electrical control across all your tractor's essential systems.

Why This Switch Matters

• Four distinct positions handle OFF, RUN, HEAT/GLOW, and START functions with positive detents
• 4-terminal design supports clean wiring connections for accessory, heat/glow, and starter circuits
• Keyed design prevents unauthorized operation while dash-mount configuration fits factory locations
• Built for field conditions with durable housing that handles vibration and moisture

Replaces These Part Numbers

• Massey Ferguson 6758
• Massey Ferguson S.43482
• Massey Ferguson S43482
• Massey Ferguson 3699692M92
• Massey Ferguson SMF2658/T
• Massey Ferguson 3699692M91

Comes with two keys for backup convenience. When your ignition switch fails, the workday stops—this replacement gets your Massey Ferguson back to reliable starting and proper electrical function.