Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Sears
Cycling

Model # 507455850 Official Sears 20" boys' bicycle

Here are the diagrams and repair parts for Official Sears 507455850 20" boys' bicycle, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 30 parts  |
Fork 20" 13624FK
#2

Unit parts diagram

Fork 20"

Part #13624FK

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

Kit Coaste 3C1386
#22

Unit parts diagram

Kit coaste

Part #3C1386

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

Tube,20"x 13624TU
#8

Unit parts diagram

Tube,20"x

Part #13624TU

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

Pedal (black) 13624PD
#24

Unit parts diagram

Pedal (black)

Part #13624PD

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

Wheel Rr 13624WHR
#6

Unit parts diagram

Wheel rr

Part #13624WHR

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

Head Beari 13624BRGHD
#3

Unit parts diagram

Head beari

Part #13624BRGHD

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

Accu-cnter 13624AC
#27

Unit parts diagram

Accu-cnter

Part #13624AC

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

Farring 13624FAR
#25

Unit parts diagram

Farring

Part #13624FAR

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

Rear Reflector Bracket 16324RBR
#16

Unit parts diagram

Rear reflector bracket

Part #16324RBR

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

Tire 13624TR
#7

Unit parts diagram

Tire

Part #13624TR

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

View all

Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Read more

Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Read more

Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Read more

Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Read more

Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Read more

Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Read more

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

View all
How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Read more
Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

View all
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.…

Read more
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.…

Read more
Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…

Read more

Parts & More