Sears
Cycling

Model # 545456550 Official Sears 20" bmx bicycle

Here are the diagrams and repair parts for Official Sears 545456550 20" bmx 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 45 parts  |

Kent Chain W/link 072007
#18

Unit parts diagram

Kent chain w/link

Part #072007

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

Lifestyler Brake Tool 103015

#NI

All parts diagram

Lifestyler brake tool

Part #103015

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

Frwl Rmvl Tl 103008

#NI

All parts diagram

Frwl rmvl tl

Part #103008

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

Ming Ta Bicycle Brake Shoe Set 104002
#29

Unit parts diagram

Ming ta bicycle brake shoe set

Part #104002

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

Wheel Cover 052010
#37

Unit parts diagram

Wheel cover

Part #052010

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

Western Auto Rr Refl Brkt 082010
#35

Unit parts diagram

Western auto rr refl brkt

Part #082010

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

Huffy Bicycle Wheel, Front 045006
#7

Unit parts diagram

Huffy bicycle wheel, front

Part #045006

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

Roadmaster Bicycle Front Axle And Bearing Assembly 053011
#11

Unit parts diagram

Roadmaster bicycle front axle and bearing assembly

Part #053011

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

Seat Clp Asm 035005
#26

Unit parts diagram

Seat clp asm

Part #035005

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

Chain Guard 074029
#19

Unit parts diagram

Chain guard

Part #074029

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

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

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

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

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.

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 remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

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.…