Cycling

Model # 50745703 Official Sears 20" boys' bicycle

Here are the diagrams and repair parts for Official Sears 50745703 20" boys' bicycle, as well as links to manuals and error code tables, if available.

By Schematic
SELECT DIAGRAM
?

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

Browse Parts for
50745703 20" Boys' Bicycle
Pedal Pair 3C2073-A01
#37

Unit parts diagram

Pedal pair

Part #3C2073-A01

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

Tube 16224
#8

Unit parts diagram

Tube

Part #16224

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

Deraillr,r 3C3418-A01
#21

Unit parts diagram

Deraillr,r

Part #3C3418-A01

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

Reflector 3C2561-2
#29

Unit parts diagram

Reflector

Part #3C2561-2

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

Tire 3C1787-A04
#7

Unit parts diagram

Tire

Part #3C1787-A04

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

Case 3C2981-A01
#22

Unit parts diagram

Case

Part #3C2981-A01

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

Sheath 3C2212-A05
#25

Unit parts diagram

Sheath

Part #3C2212-A05

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

Handl Brak 3C4765-A01
#17

Unit parts diagram

Handl brak

Part #3C4765-A01

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

Hardware 3C0592
#10

Unit parts diagram

Hardware

Part #3C0592

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

Sprocket 3C3742-A01
#34

Unit parts diagram

Sprocket

Part #3C3742-A01

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.

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

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

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

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

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

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

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.

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…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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.

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.…

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.…