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DP 21-4000A treadmill Parts

Here are the diagrams and repair parts for DP 21-4000A treadmill, as well as links to manuals and error code tables, if available.

DP 21-4000A treadmill
By Schematic
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Browse Parts for 21-4000A Fitness & Exercise

  • Mtr/mnt Asm for DP 21-4000A - Part 39355800

    Motor and walking belt assembly diagram

    Mtr/mnt Asm

    Part #39355800

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

  • Incl Carr As for DP 21-4000A - Part 39333000

    Motor and walking belt assembly diagram

    Incl Carr As

    Part #39333000

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

  • Elec Monitor for DP 21-4000A - Part 37028800

    Control panel diagram

    Elec Monitor

    Part #37028800

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

  • Motor Cover for DP 21-4000A - Part 09144941

    Motor and walking belt assembly diagram

    Motor Cover

    Part #09144941

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

  • Treadbrd/cvr for DP 21-4000A - Part 39319300

    Treadbrd/cvr

    Part #39319300

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

  • Lock Nut for DP 21-4000A - Part 25011100

    Lock Nut

    Part #25011100

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

  • Bracket for DP 21-4000A - Part 31242316

    Control panel diagram

    Bracket

    Part #31242316

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

  • Ln Pwr Cord for DP 21-4000A - Part 39166300

    Control panel diagram

    Ln Pwr Cord

    Part #39166300

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

  • Assy,motor C for DP 21-4000A - Part 39251400

    Control panel diagram

    Assy,motor C

    Part #39251400

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

  • Motor Pan for DP 21-4000A - Part 09161700

    Motor and walking belt assembly diagram

    Motor Pan

    Part #09161700

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

Most common symptoms to help you fix your fitness & exercise

Choose a symptom to see related treadmill repairs.

Main causes: bad resistance motor, faulty control console, wiring failure…

Main causes: dead batteries, power supply failure, bad wiring connections, faulty control console…

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 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 time and Difficulty

 30 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 time and Difficulty

 15 minutes or less
How to replace a treadmill walking belt

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 the…

Repair time and Difficulty

 45 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.…

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