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Weslo
Treadmill

Model # WLST41080 Official Weslo 450t treadmill

Here are the diagrams and repair parts for Official Weslo WLST41080 450t treadmill, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 35 parts  |
Black & Decker Exercise Equipment Lubricating Grease 104838

#NI

All parts diagram

Black & decker exercise equipment lubricating grease

Part #104838

This item is not returnable
$3.89 | 
20% OFF Phone Price : $4.89
In Stock
Exercise Equipment Resistance Shock Absorber 109398
#9

Unit parts diagram

Exercise equipment resistance shock absorber

Part #109398

$28.69 | 
17% OFF Phone Price : $34.69
In Stock
Nut,hex Nyl 121050
#15

Unit parts diagram

Nut,hex nyl

Part #121050

Replaced by #148710

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Manufacturer substitution
This part replaces 121050. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Weslo Grip,plstc,1 153100
#23

Unit parts diagram

Weslo grip,plstc,1

Part #153100

$15.99
In Stock
Lifestyler Screw,sbhs,m 134538
#21

Unit parts diagram

Lifestyler screw,sbhs,m

Part #134538

This item is not returnable
$2.16
In Stock
Weslo Om,wlst41080 149205

#NI

All parts diagram

Weslo om,wlst41080

Part #149205

This item is not returnable
$2.99
In Stock
Reebok Screw 144528
#28

Unit parts diagram

Reebok screw

Part #144528

This item is not returnable
$2.16
In Stock
Weslo Front Stabilizer 153092
#3

Unit parts diagram

Weslo front stabilizer

Part #153092

$27.99
In Stock
Deflecto Exercise Equipment Screw 144985
Deflecto exercise equipment screw

Part #144985

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Spcr,weld Cv 105101
#30

Unit parts diagram

Spcr,weld cv

Part #105101

This item is not returnable
$2.16
In Stock

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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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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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 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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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 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…

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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'…

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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.

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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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