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Treadmill

Model # 21-3900A Official DP treadmill

Here are the diagrams and repair parts for Official DP 21-3900A treadmill, as well as links to manuals and error code tables, if available.

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Browse Parts for
21-3900A Fitness & Exercise
Washer 26000400
Washer

Part #26000400

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

Bracket 31242316
#6A

Control panel diagram

Bracket

Part #31242316

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

Bolt 22011200
#46

Motor and walking belt assembly diagram

Bolt

Part #22011200

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

Adj Foot As 39337400
#17

Motor and walking belt assembly diagram

Adj foot as

Part #39337400

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

Frame 30439116
Frame

Part #30439116

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

L End Cover 09118600
#25

Motor and walking belt assembly diagram

L end cover

Part #09118600

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

On/off Switch 37030800
#11F

Control panel diagram

On/off switch

Part #37030800

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

Long Key 29353400
#30

Motor and walking belt assembly diagram

Long key

Part #29353400

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

Mtr Contrllr 37035600
#31

Motor and walking belt assembly diagram

Mtr contrllr

Part #37035600

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

Lock Washer 26009700

#NI

All parts diagram

Lock washer

Part #26009700

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

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