Sears
Cycling

Model # 507456650 Official Sears 20" boys' thermo bicycle

Here are the diagrams and repair parts for Official Sears 507456650 20" boys' thermo 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 36 parts  |

Seat Post 13849-SP
#15

Thermo 20" b diagram

Seat post

Part #13849-SP

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

Crank Bearing Set 13849-BRGCR
#4

Thermo 20" b diagram

Crank bearing set

Part #13849-BRGCR

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

Front Tire 13849-TRF
#7

Thermo 20" b diagram

Front tire

Part #13849-TRF

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

Chain Guard 13849-CG
#21

Thermo 20" b diagram

Chain guard

Part #13849-CG

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

Pad Kit 13849-PK
#22

Thermo 20" b diagram

Pad kit

Part #13849-PK

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

Rear Wheel 13849-WHR
#6

Thermo 20" b diagram

Rear wheel

Part #13849-WHR

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

Seat Post Clamp Hardware 13849-SMCLHDW
#25

Thermo 20" b diagram

Seat post clamp hardware

Part #13849-SMCLHDW

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

Front Brake Cable And Sheath 13849-BC
Front brake cable and sheath

Part #13849-BC

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

Stem 13849-ST
#12

Thermo 20" b diagram

Stem

Part #13849-ST

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

Seat 13849-SD
#16

Thermo 20" b diagram

Seat

Part #13849-SD

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

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

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

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

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

Articles and videos for treadmills

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

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

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.…

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.…

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…