Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
DP 21-4000 treadmill

DP 21-4000 treadmill Parts

Here are the diagrams and repair parts for DP 21-4000 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 21-4000 Fitness & Exercise

  • Screw for DP 21-4000 - Part 20016000

    Screw

    Part #20016000

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

  • Elec Monitor for DP 21-4000 - Part 37028800

    Control panel diagram

    Elec Monitor

    Part #37028800

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

  • Long Key for DP 21-4000 - Part 29353400

    Motor and walking belt assembly diagram

    Long Key

    Part #29353400

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

  • Spd Cnt Knob for DP 21-4000 - Part 39215000

    Control panel diagram

    Spd Cnt Knob

    Part #39215000

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

  • Wheel for DP 21-4000 - Part 09076600

    Motor and walking belt assembly diagram

    Wheel

    Part #09076600

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

  • Screw Sm for DP 21-4000 - Part 20018800

    Screw Sm

    Part #20018800

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

  • Speed Sensor for DP 21-4000 - Part 37011100

    Motor and walking belt assembly diagram

    Speed Sensor

    Part #37011100

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

  • Washer for DP 21-4000 - Part 26000100

    Motor and walking belt assembly diagram

    Washer

    Part #26000100

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

  • Bolt for DP 21-4000 - Part 22012600

    Control panel diagram

    Bolt

    Part #22012600

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

  • Push Nut for DP 21-4000 - Part 25008900

    Push Nut

    Part #25008900

    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 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
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

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.…

Parts & More

Dryer
Electric Range
Gas Walk-Behind Mower
Lawn & Garden Engine
Parts
Power Stapler
Side-By-Side Refrigerator
Washer
Water Softener