Top parts for:
Model:#JFTL00040
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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

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

Search
ALL PARTS
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

Incl Brkt 09145800
#11I

Figure 1 diagram

Incl brkt

Part #09145800

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

Lock Washer 26009700
#35

Figure 2 diagram

Lock washer

Part #26009700

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

Mount Strap 39195600
#18G

Figure 2 diagram

Mount strap

Part #39195600

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

Battery, Aa STD363090

#NI

All parts diagram

Battery, aa

Part #STD363090

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

Screw 20016000
Screw

Part #20016000

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

Side Rail 09146400
#12

Figure 2 diagram

Side rail

Part #09146400

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

Bolt 22011500
#39

Figure 2 diagram

Bolt

Part #22011500

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

Frame 30447916
Frame

Part #30447916

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: 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...

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

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 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
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 difficulty
Time required
30 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....