Can’t find your part? Contact us:

+1-309-603-4777

Treadmill

Model # 374296221 Official Lifestyler ergometer treadmill

Here are the diagrams and repair parts for Official Lifestyler 374296221 ergometer 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

ALL PARTS

Showing 10 of 88 parts |

Side Rail Rh 38176616

#100

All parts diagram

Side rail rh

Part #38176616

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

Mtr Mount 38215710

#134

All parts diagram

Mtr mount

Part #38215710

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

Motor 37020500

#140

All parts diagram

Motor

Part #37020500

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

Side Rail 2h 38176916

#101

All parts diagram

Side rail 2h

Part #38176916

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

Foot Pad 04025600

#113

All parts diagram

Foot pad

Part #04025600

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

Adj Rod 38177510

#126

All parts diagram

Adj rod

Part #38177510

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

Mount Strap 39195600

#118

All parts diagram

Mount strap

Part #39195600

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

Console Btm 09080900

#159

All parts diagram

Console btm

Part #09080900

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

Rear Roller 39183000

#149

All parts diagram

Rear roller

Part #39183000

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

Screw 21019900

#132

All parts diagram

Screw

Part #21019900

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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…

Why is my treadmill's walking belt off center?

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

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…

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

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

Why does my treadmill have no display?

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

Why does my treadmill's walking belt slow down?

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

Why is my treadmill's walking belt slipping?

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.…

Stay Connected