DP
Treadmill

Model #R8903T Official DP treadmill

Here are the diagrams and repair parts for DP R8903T treadmill, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 43 parts

Washer#7

Unit parts Diagram

Washer

Part #26026500

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

Bolt#32

Unit parts Diagram

Bolt

Part #22039700

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

Btn Hd Screw#13

Unit parts Diagram

Btn hd screw

Part #22040300

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

Treadboard#20

Unit parts Diagram

Treadboard

Part #41028241

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

Bushing#42

Unit parts Diagram

Bushing

Part #09216900

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

Roller#22

Unit parts Diagram

Roller

Part #39461300

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

Monitor#8

Unit parts Diagram

Monitor

Part #37056800

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

Hex Bolt#34

Unit parts Diagram

Hex bolt

Part #22040500

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

Bolt#30

Unit parts Diagram

Bolt

Part #22040400

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

Support#4

Unit parts Diagram

Support

Part #30499216

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: faulty sensors, wiring failure, bad control console
Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor control board
Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor
Main causes: bad control console, wiring failure, bad motor control board
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

Repair guides for treadmills

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

June 1, 2015
By Lyle Weischwill
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 motor correctly.

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

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using these steps.

Repair difficulty
Time required
 45 minutes or less
June 1, 2015
By Lyle Weischwill
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't run.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all fitness & exercise

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

June 29, 2022

Top questions about Sears and Sears PartsDirect

By Lyle Weischwill

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