Treadmill

Model # WLTL39112 Official Weslo cadence 400cs treadmill

Here are the diagrams and repair parts for Official Weslo WLTL39112 cadence 400cs treadmill, as well as links to manuals and error code tables, if available.

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WLTL39112 Fitness & Exercise
Treadmill Safety Key (replaces 125589, 153017) 119038
Treadmill safety key (replaces 125589, 153017)

Part #119038

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This item is not returnable
$3.14
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Belt 118016
#12

Weslo cadence diagram

Belt

Part #118016

Replaced by #224019

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Manufacturer substitution
This part replaces 118016. Substitute parts can look different from the original.
$12.24
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Treadmill Walking Belt (replaces 137956, 189253, 205081) 142851
#67

Weslo cadence diagram

Treadmill walking belt (replaces 137956, 189253, 205081)

Part #142851

$62.49
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Black & Decker Exercise Equipment Screw 105444
#83

Weslo cadence diagram

Black & decker exercise equipment screw

Part #105444

This item is not returnable
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Black & Decker Treadmill Washer 014063
Black & decker treadmill washer

Part #014063

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$2.49
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Magnet,rnd,m 100498
#45

Weslo cadence diagram

Magnet,rnd,m

Part #100498

Replaced by #113842

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Manufacturer substitution
This part replaces 100498. Substitute parts can look different from the original.
This item is not returnable
In Stock
Treadmill Front Roller 147990
#50

Weslo cadence diagram

Treadmill front roller

Part #147990

$49.99
11% OFF Phone Price : $55.99
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Toyostove Treadmill Reed Switch And Sensor Wire (replaces 160068, 249538) 165798
#44

Weslo cadence diagram

Toyostove treadmill reed switch and sensor wire (replaces 160068, 249538)

Part #165798

This item is not returnable
$10.19
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Exercise Equipment Hex Nut 012056
#17

Weslo cadence diagram

Exercise equipment hex nut

Part #012056

This item is not returnable
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Weider Belt Guide 198640
#65

Weslo cadence diagram

Weider belt guide

Part #198640

This item is not returnable
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Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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

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

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

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

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

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

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.…