DP
Treadmill

Model # 21-4500 Official DP treadmill

Here are the diagrams and repair parts for Official DP 21-4500 treadmill, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 81 parts  |

Mtr/mnt Asm 39332900
#18

Figure 2 diagram

Mtr/mnt asm

Part #39332900

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

Motor Cover 09154741
#16

Figure 2 diagram

Motor cover

Part #09154741

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

Handrail As 39348800
#9

Figure 2 diagram

Handrail as

Part #39348800

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

Tread Board 39348600
#14

Figure 2 diagram

Tread board

Part #39348600

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

Washer 26000100
#45

Figure 2 diagram

Washer

Part #26000100

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

Washer 26006500
#9B

Figure 2 diagram

Washer

Part #26006500

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

Bracket 31242316
#6A

Figure 1 diagram

Bracket

Part #31242316

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

Bolt 23016300
#36

Figure 2 diagram

Bolt

Part #23016300

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

Drive Belt 09148300
#20

Figure 2 diagram

Drive belt

Part #09148300

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

Screw 23018300
#6B

Figure 1 diagram

Screw

Part #23018300

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

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

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

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 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 difficulty
Time required
 45 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

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.…