Description
The Safety Key Assembly for the Nautilus T 618 Treadmill is a reliable nautilus treadmill parts replacement designed to restore safe start-and-stop function on your machine. This magnetic key assembly fits the Nautilus T 618 treadmill and helps ensure the console recognizes the key properly before operation.
- Designed for use with the Nautilus T 618 treadmill.
- Compatible with replacement part number 8006259-3.
- Ideal as a t 618 treadmill safety key assembly replacement when the original key is lost, cracked, or no longer makes secure contact.
- Made to match the original key style and fit for dependable treadmill safety performance.
- Please compare your existing key shape and part number before ordering to confirm proper fit.
This nautilus safety key assembly is an essential component for treadmill operation, allowing the equipment to start only when the key is correctly seated. Built as an OEM-quality replacement, it is designed for proper magnetic engagement and dependable day-to-day use. The compact assembly is easy to store and simple to install—just place the key in the console slot and attach the clip as intended during workouts. Whether you are replacing a missing key or keeping a spare on hand, this part offers a practical, low-cost solution for maintaining safe operation of your Nautilus treadmill.
Easy DIY installation and OEM-quality performance. Ships same day from our warehouse.
Shop the full range of Nautilus T618 treadmill parts at Krislynn.


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