Thunderbird TB-400E-4 Knife. This is a genuine OEM replacement part from Thunderbird.
Guaranteed Compatibility – OEM parts fit and function exactly like the original components, ensuring a perfect match Higher Quality and Reliability – OEM parts are built to the same quality standards as the original components, reducing the risk of premature failure. Safety Assurance – Genuine parts give you peace of mind that your equipment remains safe to use Maintain Your Warranty – Using genuine OEM parts is less likely to void your equipment’s warranty