Sears
Cycling

Model # 502457281 Official Sears 20" moto-cross bicycle

Here are the diagrams and repair parts for Official Sears 502457281 20" moto-cross 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 62 parts  |

R Wheel Assy 303013C
#21

Unit parts diagram

R wheel assy

Part #303013C

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

Sprocket 300424
#21C

Shimano rear hub diagram

Sprocket

Part #300424

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

Spk 7-9/16 303155
Spk 7-9/16

Part #303155

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

Axle Mx 303520
#11

Unit parts diagram

Axle mx

Part #303520

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

F Wheel 303005C
#9

Unit parts diagram

F wheel

Part #303005C

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

Lh Dust Cap 300463
#5

Shimano rear hub diagram

Lh dust cap

Part #300463

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

Sprocket 300427
#21F

Shimano rear hub diagram

Sprocket

Part #300427

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

F/502.457280 Only 32783
#2A

Unit parts diagram

F/502.457280 only

Part #32783

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

Ball Ret 300408
#6

Shimano rear hub diagram

Ball ret

Part #300408

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

Seat Post 32941Z
#25

Unit parts diagram

Seat post

Part #32941Z

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

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Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

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How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

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Repair difficulty
Time required
 15 minutes or less
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How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

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How to replace a line trimmer fuel line video

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