Can’t find your part? Contact us:

+1-309-603-4777

Treadmill

Model # 374296220 Official Lifestyler ergometer treadmill

Here are the diagrams and repair parts for Official Lifestyler 374296220 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 84 parts |

Motor 39176700

Motor and walking belt assembly diagram

Motor

Part #39176700

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

Var Pulley 39173200

Motor and walking belt assembly diagram

Var pulley

Part #39173200

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

Hand Rail 39173300

Unit parts diagram

Hand rail

Part #39173300

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

Bolt 22011500

Motor and walking belt assembly diagram

Bolt

Part #22011500

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

Mtg Rod 31170010

Motor and walking belt assembly diagram

Mtg rod

Part #31170010

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

Grip 04025700

Unit parts diagram

Grip

Part #04025700

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

Screw 20011400

Motor and walking belt assembly diagram

Screw

Part #20011400

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

Sleeve 04027300

Unit parts diagram

Sleeve

Part #04027300

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

Hand Rail Cv 09078200

Unit parts diagram

Hand rail cv

Part #09078200

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

Spacer 02031600

Motor and walking belt assembly diagram

Spacer

Part #02031600

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 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…

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 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…

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.…

Stay Connected