This aftermarket ignition switch and key is a replacement for compatible New Holland Boomer, T, and TC tractors. It belongs to the starting and electrical control system and is used to turn the tractor power on, engage the start circuit, and shut the machine down. Built to match OEM The switch is made to match the original style ignition switch for proper fit and function in the dash. It includes the matching key and is intended to replace a worn, damaged, or unreliable switch without changing the tractor’s electrical layout. Installation Installation is typically straightforward for a DIY mechanic with basic hand tools. Remove the old switch, transfer the wiring connection as applicable, and install this replacement in the existing location with no machine modification expected when fitment is correct. .product-description-v2 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: #1d1d1d; line-height: 1.55; max-width: 720px; } .product-description-v2 > div { margin-bottom: 18px; } .product-description-v2 h3 { font-size: 16px; font-weight: 700; color: #1d1d1d; margin: 0 0 8px; } .product-description-v2 p { margin: 0; font-size: 15px; } @media (max-width: 768px) { .product-description-v2 { font-size: 15px; } }