Proform
Treadmill

Model #WL361503 Official Proform cadence 3350 treadmill

Here are the diagrams and repair parts for Proform WL361503 cadence 3350 treadmill, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

    Showing 10 of 94 parts

    Treadmill Power Cord#42

    Unit parts Diagram

    In Stock
    $11.39 | 
    15% OFF 
    Phone Price: $13.39
    Treadmill Washer#65

    Unit parts Diagram

    Treadmill washer

    Part #014063
    This item is not returnable
    In Stock
    $1.49 | 
    40% OFF 
    Phone Price: $2.49
    Treadmill Walking Belt Alignment Tool Holder#64

    Unit parts Diagram

    Treadmill walking belt alignment tool holder

    Part #016028
    This item is not returnable
    In Stock
    $2.16
    Exercise Equipment Circuit Breaker, 12-amp#20

    Unit parts Diagram

    Cb,12amp

    Part #031036
    Replaced by #109383
    ?
    Manufacturer substitution
    This part replaces 031036. Substitute parts can look different from the original.
    In Stock
    $9.99
    Treadmill Walking Belt#58

    Unit parts Diagram

    Walking belt assembly

    Part #126255
    Replaced by #124882
    ?
    Manufacturer substitution
    This part replaces 126255. Substitute parts can look different from the original.
    Back Order
    $54.79 | 
    8% OFF 
    Phone Price: $59.79
    Screw,tekphr#75

    Unit parts Diagram

    Screw,tekphr

    Part #013511

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

    Exercise Equipment Nut#49

    Unit parts Diagram

    Exercise equipment nut

    Part #012179
    This item is not returnable
    In Stock
    $2.16
    Slotted Screw#13

    Unit parts Diagram

    Slotted screw

    Part #013522
    This item is not returnable
    In Stock
    $2.16
    Exercise Equipment Screw#26

    Unit parts Diagram

    Exercise equipment screw

    Part #013162
    This item is not returnable
    In Stock
    $2.16
    Carriage Bolt#24

    Unit parts Diagram

    Carriage bolt

    Part #013445
    This item is not returnable
    In Stock
    $2.16

    Symptoms for treadmills

    Choose a symptom to see related treadmill repairs.

    Main causes: faulty sensors, wiring failure, bad control console
    Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor control board
    Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor
    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
    Main causes: rear roller out of alignment, damaged walking belt, bad roller

    Repair guides for treadmills

    These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

    June 1, 2015
    By Lyle Weischwill
    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 motor correctly.

    Repair difficulty
    Time required
     15 minutes or less
    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 these steps.

    Repair difficulty
    Time required
     45 minutes or less
    June 1, 2015
    By Lyle Weischwill
    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't run.

    Repair difficulty
    Time required
     15 minutes or less

    Articles and videos common to all fitness & exercise

    Use the advice and tips in these articles and videos to get the most out of your treadmill.

    June 29, 2022

    Top questions about Sears and Sears PartsDirect

    By Lyle Weischwill

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