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Sears
Cycling

Model # 512878171 Official Sears 16" sidewalk bicycle

Here are the diagrams and repair parts for Official Sears 512878171 16" sidewalk bicycle, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 48 parts  |
Spacer 241-525
#56

Replacement parts diagram

Spacer

Part #241-525

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

Hndlbr Plt 241-493
#53

Replacement parts diagram

Hndlbr plt

Part #241-493

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

Crank Assembly 47-29863-747
#24

Replacement parts diagram

Crank assembly

Part #47-29863-747

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

Bearing Half 217-130
#25

Replacement parts diagram

Bearing half

Part #217-130

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

Cover 241-685
#44

Replacement parts diagram

Cover

Part #241-685

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

Plastic Washer (fork Stem) 241485
#7

Replacement parts diagram

Plastic washer (fork stem)

Part #241485

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

Grip 241-256
#3

Replacement parts diagram

Grip

Part #241-256

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

Chain Guard 74-5050P
#20

Replacement parts diagram

Chain guard

Part #74-5050P

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

Nylon Bearings (bike Head) 217-36
#10

Replacement parts diagram

Nylon bearings (bike head)

Part #217-36

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

Fork Asm 74-27026
#11

Replacement parts diagram

Fork asm

Part #74-27026

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

Symptoms for treadmills

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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

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

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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How to use a multimeter to test electrical parts video

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