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Lifestyler
Treadmill

Model # 374288451 Official Lifestyler prime fit concourse 10.55 gi treadmill

Here are the diagrams and repair parts for Official Lifestyler 374288451 prime fit concourse 10.55 gi 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 99 parts  |
Lock Nut 25014600
#67

Motor and walking assembly diagram

Lock nut

Part #25014600

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

Lock Nut 25018700
#72

Motor and walking assembly diagram

Lock nut

Part #25018700

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

Hex Screw 23021000
#53

Motor and walking assembly diagram

Hex screw

Part #23021000

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

Washer 26000400
#66

Motor and walking assembly diagram

Washer

Part #26000400

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

Washer 26018700
#65

Motor and walking assembly diagram

Washer

Part #26018700

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

Lock Nut 25020400
#25D

Motor and walking assembly diagram

Lock nut

Part #25020400

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

Motor/mnt As 39379300
#32

Motor and walking assembly diagram

Motor/mnt as

Part #39379300

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

R Siderail 34030510
#10

Motor and walking assembly diagram

R siderail

Part #34030510

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

Motor 37041200
#32B

Motor and walking assembly diagram

Motor

Part #37041200

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why does my treadmill's walking belt slow down?

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

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Why is my treadmill's walking belt slipping?

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

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why won't my treadmill power up?

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

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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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…

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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'…

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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…

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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.

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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.…

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