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Sears
Cycling

Model # 512878132 Official Sears 16" sidewalk bicycle

Here are the diagrams and repair parts for Official Sears 512878132 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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ALL PARTS
Showing 10 of 41 parts  |
Lock Nut STD541410
#23

Replacement parts diagram

Lock nut

Part #STD541410

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

Pad Cover 12213-276
#41

Replacement parts diagram

Pad cover

Part #12213-276

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

Bolt 216-4011A
#29

Replacement parts diagram

Bolt

Part #216-4011A

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

Screw STD601103
#21

Replacement parts diagram

Screw

Part #STD601103

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

Chain STD316650
#32

Replacement parts diagram

Chain

Part #STD316650

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

Front Axle 19-375-285
#13

Replacement parts diagram

Front axle

Part #19-375-285

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

Spacer 241-514
#15

Replacement parts diagram

Spacer

Part #241-514

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

Hex Nut STD541137
#18

Replacement parts diagram

Hex nut

Part #STD541137

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

Screw 216-3871A
#50

Replacement parts diagram

Screw

Part #216-3871A

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

Symptoms for treadmills

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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 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 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 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
How to replace a treadmill walking board

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…

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Repair difficulty
Time required
 30 minutes or less

Articles and videos for treadmills

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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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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How to maintain a treadmill

How to maintain a treadmill

Keep your treadmill in shape by following these tips.…

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