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 21-4000A 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
SELECT DIAGRAM
?

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

Browse Parts for 21-4000A Fitness & Exercise

  • Handrail for DP 21-4000A - Part 30446116

    Handrail

    Part #30446116

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

  • Bellows for DP 21-4000A - Part 09104600

    Control panel diagram

    Bellows

    Part #09104600

    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

  • Incline Adj for DP 21-4000A - Part 09099700

    Control panel diagram

    Incline Adj

    Part #09099700

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

  • Inclne Cable for DP 21-4000A - Part 29326018

    Control panel diagram

    Inclne Cable

    Part #29326018

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

  • Rear Roller for DP 21-4000A - Part 39311600

    Motor and walking belt assembly diagram

    Rear Roller

    Part #39311600

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

  • Bushing for DP 21-4000A - Part 29098500

    Bushing

    Part #29098500

    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

  • R Foot Cover for DP 21-4000A - Part 09145400

    Motor and walking belt assembly diagram

    R Foot Cover

    Part #09145400

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

  • Potentiometer for DP 21-4000A - Part 37027800

    Control panel diagram

    Potentiometer

    Part #37027800

    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.…

Parts & More

Air Compressor
Dryer
Gas Range
Lawn & Garden Engine
Lcd Television
Parts
Range Hood
Rear-Engine Riding Mower
Side-By-Side Refrigerator