Treadmill

Model # T618 Official Nautilus t618 treadmill

Here are the diagrams and repair parts for Official Nautilus T618 t618 treadmill, as well as links to manuals and error code tables, if available.

By Schematic
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for
T618 Fitness & Exercise
Shroud 8011998
#5H

Main asy diagram

Shroud

Part #8011998

The manufacturer no longer makes this part, and there's no substitute part

Mcb Cover 8006404
#NI

Main asy diagram

Mcb cover

Part #8006404

The manufacturer no longer makes this part, and there's no substitute part

Upright Le 8009079
#9

Main asy diagram

Upright le

Part #8009079

The manufacturer no longer makes this part, and there's no substitute part

Cover-cons 8009296
#2

Main asy diagram

Cover-cons

Part #8009296

The manufacturer no longer makes this part, and there's no substitute part

Deck 8009107
#5J

Main asy diagram

Deck

Part #8009107

The manufacturer no longer makes this part, and there's no substitute part

Console 8009317
#1

Main asy diagram

Console

Part #8009317

The manufacturer no longer makes this part, and there's no substitute part

Drop Deck 8010049
#NI

Main asy diagram

Drop deck

Part #8010049

The manufacturer no longer makes this part, and there's no substitute part

Shroud 8011997
#5G

Main asy diagram

Shroud

Part #8011997

The manufacturer no longer makes this part, and there's no substitute part

Weldment-t 8010053
#NI

Main asy diagram

Weldment-t

Part #8010053

The manufacturer no longer makes this part, and there's no substitute part

Cover 8009260
#NI

Main asy diagram

Cover

Part #8009260

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your fitness & exercise

Use the advice and tips in these articles and videos to get the most out of your treadmill.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

No results are available.