Model # 545451750 Official Sears 20" bmx bicycle

Here are the diagrams and repair parts for Official Sears 545451750 20" bmx 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

ALL PARTS

Showing 10 of 42 parts |

#20

Unit parts diagram

Lifestyler ft sprkt 44t

Part #068002

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

#30

Unit parts diagram

Seat post

Part #032010

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

#34

Unit parts diagram

Ming ta bicycle brake shoe set

Part #104002

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

#40

Unit parts diagram

Western auto rr refl brkt

Part #082010

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

#21

Unit parts diagram

Kent chain w/link

Part #072007

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

#18

Unit parts diagram

Pedal

Part #070003

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

#16

Unit parts diagram

Kickstand

Part #076007

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

Unit parts diagram

Bolt w/wedge

Part #008010

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

#NI

All parts diagram

Owner's manual

Part #102072

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

Unit parts diagram

Front wheel assembly

Part #045010

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

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty

Time required

30 minutes or less

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty

Time required

15 minutes or less

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty

Time required

45 minutes or less

Articles and videos for side-by-side refrigerators

How to Replace the Water Filter in a GE Refrigerator

Model # 545451750 Official Sears 20" bmx bicycle

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a refrigerator water valve

How to replace a defrost sensor in a side-by-side refrigerator

Articles and videos for side-by-side refrigerators

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Parts & More

Stay Connected

Quick links

Let us help you

More resources