Nautilus T614 treadmill parts are in stock at Krislynn for owners who want to repair rather than replace. The Nautilus T 614 is a well-built home treadmill with a 2.75 HP drive motor, motorized incline, StrikeZone cushioning, and a 22-program workout console. Like the T616, it was shared with the Schwinn Journey 8.0, so some parts carry both model names in their listings.
Krislynn provides the diagram below for your convenience. A complete table of available parts is directly below the diagram.
The most common Nautilus T614 repairs involve the running belt, deck, drive belt (210j7), drive motor, front and rear rollers, incline motor, safety key, and console components. Running belts and decks wear together; the belt develops glazing and the deck develops center-track grooves from continuous foot-strike loading. Drive belts stretch and crack with use. The incline motor is a frequent failure point on motorized treadmills in this class.
Other parts available in this category include the deck lift shock, suspension deck, console and handlebar weldment, cup holder covers, handlebar covers, circuit breaker, power cord, speed sensor cable, base shrouds, uprights, incline weldment, transport wheels, media cable, and the MCB service kit. The full 43-part selection covers most repair paths on the Nautilus T 614 treadmill, from straightforward belt and deck replacements to motor and electronics work.
Showing all 43 results
#1 in diagram
This document kit for the Nautilus treadmill T 614 includes the correct replacement literature for your model, helping with setup, reference, and maintenance when original manuals are missing or worn.
#2 in diagram
This Nautilus treadmill hardware card assy NLS replacement fits the T 614 treadmill and restores secure internal hardware mounting, making it essential for replacing worn, damaged, or missing original components.
#3 in diagram
Left base shroud side rail end cap for the Nautilus T 614 treadmill, replacing a worn or broken Nautilus treadmill trim piece to restore secure side rail coverage and a clean, finished appearance.
#4 in diagram
Right base shroud side rail end cap for the Nautilus treadmill T 614, designed to fit the T 614 treadmill base shroud side rail end area and restore proper deck-side coverage and finish.
#5 in diagram
This Nautilus treadmill base shroud wheel cover right fits the Nautilus T 614 treadmill and replaces a damaged side cover to help protect internal components and restore a clean, secure fit.
#6 in diagram
Left base shroud wheel cover for the Nautilus treadmill T 614, designed to fit the T 614 treadmill and replace a cracked or missing side cover for proper wheel protection and appearance.
#7 in diagram
This Nautilus treadmill right cover handlebar junction fits the Nautilus T 614 treadmill, replacing a damaged t 614 treadmill cover handlebar junction right NLS to restore clean fit, protection, and original appearance.
#8 in diagram
This Nautilus treadmill left handlebar junction cover fits the Nautilus T614 treadmill and replaces a damaged or missing housing piece to help protect internal components and restore a clean, secure console connection.
#9 in diagram
This Nautilus treadmill shroud base frame upright right fits the Nautilus T614 treadmill, replacing the right-side lower upright cover to restore proper protection, alignment, and a clean finished look.
#10 in diagram
This Nautilus treadmill shroud base frame upright left fits the Nautilus T614 treadmill and replaces a damaged lower left upright cover to restore proper protection, alignment, and a finished appearance.
#11 in diagram
This Nautilus treadmill base shroud side rail frame piece fits the Nautilus T 614 treadmill, replacing the one-piece lower frame cover to restore protection, support, and a clean finished appearance.
#12 in diagram
Factory-original screen printed treadmill belt for Nautilus T 614 and Journey treadmills, restoring smooth traction and proper fit when your nautilus treadmill walking surface is worn, slipping, or damaged.
#13 in diagram
Schwinn motor cover replacement part for the Nautilus treadmill T 614 helps restore safe operation and protects internal drive components, making it an ideal fit when replacing a cracked, missing, or worn cover.
#14 in diagram
Nautilus treadmill cover console cup holder right replacement for the Nautilus T 614 treadmill restores secure beverage storage and replaces a worn or missing t 614 treadmill cover console cup holder right piece.
#15 in diagram
This Nautilus treadmill cover console cup holder left fits the Nautilus T 614 treadmill and replaces a worn or broken left-side console insert, helping restore convenient bottle storage and a clean factory look.
#16 in diagram
Console and handlebar weldment Schwinn replacement part for the Schwinn/Nautilus T 614 treadmill, restoring secure console and handlebar support when your nautilus treadmill frame assembly is damaged or worn.
#17 in diagram
Nautilus treadmill weldment base frame treadmill replacement for the Nautilus T 614 treadmill, restoring stable support and proper alignment when the original base frame is bent, cracked, or worn.
#18 in diagram
Black wheel transport replacement for the Nautilus treadmill T 614, restoring smooth portability and stable movement when your original transport wheel is worn, damaged, or missing.
#19 in diagram
This Nautilus treadmill adjustable foot fits the Nautilus T 614 treadmill and provides a stable, level base, making it an ideal T 614 treadmill adjustable foot replacement for worn or damaged feet.
#20 in diagram
This left upright Schwinn Journey treadmill replacement part fits the Nautilus T 614 treadmill and Schwinn Journey 80, restoring secure console support and frame alignment for safe, reliable treadmill operation.
#21 in diagram
This right upright replacement part fits the Schwinn T 614 and Schwinn Journey 8.0 nautilus treadmill, restoring console support and frame stability for safe, reliable treadmill operation.
#22 in diagram
This front roller is a treadmill replacement part for the Nautilus T 614 treadmill and Schwinn Journey 8.0, restoring smooth belt tracking and reliable performance when your original roller is worn or damaged.
#23 in diagram
Rear roller assembly Schwinn replacement part for the Schwinn Journey 8.0 and Nautilus T 614 treadmill, restoring smooth belt tracking and reliable rear-drive support when the original roller is worn or damaged.
#24 in diagram
This Nautilus treadmill drive belt is designed for the Nautilus T 614 treadmill, providing a reliable T 614 treadmill drive belt replacement to restore smooth motor-to-walking belt performance and reduce wear.
#25 in diagram
This treadmill drive motor Schwinn replacement part fits Schwinn 614 and Journey 8.0 models, including the Nautilus T 614 treadmill, restoring smooth belt operation when the original motor fails or loses power.
#27 in diagram
Incline motor replacement for the Nautilus T 614 treadmill, this Nautilus incline motor restores smooth deck elevation control when your nautilus treadmill no longer adjusts incline properly.
#28 in diagram
Nautilus treadmill suspension deck for the T 614 treadmill, this suspension deck replacement restores proper cushioning and deck support to reduce wear and help maintain a smoother, safer workout experience.
#29 in diagram
This deck lift shock is a Schwinn replacement part for T-614 and Journey 8.0 treadmills, providing smooth deck raising and lowering when replacing a worn Nautilus treadmill deck lift shock.
#30 in diagram
This Nautilus treadmill power cord SJT replacement fits the Nautilus T 614 treadmill and restores safe, reliable 120VAC power when your original cord is damaged, worn, or no longer working properly.
#31 in diagram
This Nautilus treadmill wire assembly fits the T 614 treadmill console communication system, replacing the 800mm 5-conductor TZI-to-SM-5A cable to restore reliable signal transfer between key electronic components.
#32 in diagram
This Nautilus treadmill media cable is a 250 mm stereo 90 degree plug cable for the T 614 treadmill, restoring audio connectivity when the original cable is damaged or worn.
#34 in diagram
Nautilus treadmill service kit console back cover for the T 614 treadmill replaces a damaged rear console housing, helping restore proper fit, protection, and appearance on compatible Nautilus T 614 models.
#36 in diagram
This Nautilus treadmill service kit includes the drive motor mount replacement for the Nautilus T 614 treadmill, helping restore proper motor support, reduce vibration, and keep your machine running smoothly.
#37 in diagram
This Nautilus treadmill service control board kit is a T 614 treadmill SVC MCB TM replacement for the My14 110V model, restoring proper power and console communication when the original board fails.
#38 in diagram
This Nautilus treadmill motor cover bottom replacement fits the T 614 treadmill and protects internal drive components, making it essential for restoring safe operation and replacing a cracked or missing lower shroud.
#39 in diagram
Safety key assembly replacement for the Nautilus T 614 treadmill, designed to restore safe startup and proper operation when your original nautilus treadmill safety key is lost, worn, or damaged.
#40 in diagram
This Nautilus treadmill speed sensor cable TM replacement fits the My14 Nautilus T 614 treadmill and restores accurate speed signal communication, helping fix console readings and keep your machine operating properly.
#41 in diagram
Nautilus treadmill weldment incline replacement for the Nautilus T 614 treadmill, restoring proper incline function and helping replace a worn or damaged incline assembly for safer, smoother workouts.
#42 in diagram
This Nautilus treadmill replacement service kit includes deck hardware for Nautilus T 614, 830, and 8.0 treadmill models, helping secure the walking deck properly during repair or routine maintenance.
#43 in diagram ( Call for Availability )
Nautilus treadmill deck replacement for the T 614 treadmill, this 1300 x 684 x 18 mm running deck restores a smooth, stable surface when your original deck is worn, cracked, or causing excess belt friction.
#44 in diagram
This Nautilus treadmill circuit breaker reset replacement fits the Nautilus T 614 treadmill and restores proper overload protection, making it an essential fix when your machine won’t power on or keeps tripping.
#45 in diagram
This Nautilus treadmill connector power inlet IEC C14 replacement fits the Nautilus T 614 treadmill and restores a secure AC power connection when the original inlet is damaged, loose, or no longer working properly.
#46 in diagram
This Nautilus treadmill rocker switch DPST replacement fits the Nautilus T 614 treadmill and restores reliable power control, making it an essential fix for worn, faulty, or nonresponsive on/off switches.