Cycling

Model # 502474190 Official Sears 20" transit bicycle

Here are the diagrams and repair parts for Official Sears 502474190 20" transit bicycle, as well as links to manuals and error code tables, if available.

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Browse Parts for
502474190 20" Transit Bicycle
Sprocket 300424
#45A

Shimano three speed hub with coaster brake diagram

Sprocket

Part #300424

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

F Axle Set 303518
#11

Unit parts diagram

F axle set

Part #303518

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

20 In Fork 27170CCC
#8

Unit parts diagram

20 in fork

Part #27170CCC

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

Thrst Wshr 300722
#20

Shimano three speed hub with coaster brake diagram

Thrst wshr

Part #300722

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

R Fender 35721CCC
#23

Unit parts diagram

R fender

Part #35721CCC

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

Shift Cable 303485
#43

Shimano three speed hub with coaster brake diagram

Shift cable

Part #303485

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

Bicycle Nut 15X66
#25B

Unit parts diagram

Bicycle nut

Part #15X66

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

Washer 300058
#4

Shimano three speed hub with coaster brake diagram

Washer

Part #300058

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

F Wheel Assy 303016C
#9

Unit parts diagram

F wheel assy

Part #303016C

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

H Bar Clamp 308803
#4

Handlebar stem diagram

H bar clamp

Part #308803

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

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

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

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

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…

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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
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 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 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: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho…