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DP 21-3900 treadmill Parts
Here are the diagrams and repair parts for DP 21-3900 treadmill, as well as links to manuals and error code tables, if available.
By Schematic
SELECT DIAGRAM
Browse Parts for 21-3900 Fitness & Exercise
Figure 1 diagram
Console Top
Part #39312141
The manufacturer no longer makes this part, and there's no substitute part
Figure 1 diagram
Handlebar
Part #30436216
The manufacturer no longer makes this part, and there's no substitute part
Figure 1 diagram
Bushing
Part #37016900
The manufacturer no longer makes this part, and there's no substitute part
Figure 2 diagram
Pivot Rod
Part #31184500
The manufacturer no longer makes this part, and there's no substitute part
Figure 1 diagram
Screw
Part #20013100
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Battery
Part #STD363091
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Treadmill Owner's Manual
Part #60102800
The manufacturer no longer makes this part, and there's no substitute part
Figure 1 diagram
Screw
Part #21022200
The manufacturer no longer makes this part, and there's no substitute part
Figure 1 diagram
Bellows
Part #09104600
The manufacturer no longer makes this part, and there's no substitute part
Figure 2 diagram
Bolt
Part #23016300
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
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
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
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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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