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Model # PFTL59821 Official Proform 520 i treadmill
Here are the diagrams and repair parts for Official Proform PFTL59821 520 i treadmill, as well as links to manuals and error code tables, if available.
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PFTL59821 Fitness & Exercise
Treadmill safety key (replaces 125589, 153017)
Part #119038
This item is not returnable
$3.14 |
24% OFF Phone Price : $4.14
Back Order
#77
Treadmill diagram
Belt,walk,ar
Part #190254
Replaced by #173063
?
Manufacturer substitution
This part replaces 190254. Substitute parts can look different from the original.
$77.49 |
7% OFF Phone Price : $83.49
Back Order
#61
Treadmill diagram
Black & decker treadmill power cord (replaces 031033, 031143, 031147, 247991)
Part #031229
$11.39 |
15% OFF Phone Price : $13.39
In Stock
#91
Treadmill diagram
Black & decker exercise equipment screw
Part #105444
This item is not returnable
$2.16
In Stock
#65
Treadmill diagram
Toyostove treadmill circuit breaker
Part #186726
This item is not returnable
$8.99
In Stock
#92
Treadmill diagram
Black & decker treadmill washer
Part #014063
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
In Stock
#101
Treadmill diagram
Magnet,rnd,m
Part #100498
Replaced by #113842
?
Manufacturer substitution
This part replaces 100498. Substitute parts can look different from the original.
This item is not returnable
$2.16
Back Order
#16
Treadmill diagram
Black & decker exercise equipment nut
Part #012149
This item is not returnable
$2.16
In Stock
#62
Treadmill diagram
Black & decker power cord grommet
Part #173169
This item is not returnable
$2.16
In Stock
#78
Treadmill diagram
Treadmill front roller
Part #196324
$79.89 |
7% OFF Phone Price : $85.89
In Stock
Symptoms for treadmills
Choose a symptom to see related treadmill repairs.
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…
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: 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
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
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
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.

Get answers to frequently asked questions about Sears and Sears PartsDirect.…