Sears
Cycling

Model # 502451814 Official Sears middleweight bicycle

Here are the diagrams and repair parts for Official Sears 502451814 middleweight 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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ALL PARTS
Showing 10 of 40 parts  |

Frnt Hub Set 9850-12

#NI

All parts diagram

Frnt hub set

Part #9850-12

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

Chain 11323
#9C

Frame assembly diagram

Chain

Part #11323

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

Bar Stem 27160
#9B

Frame assembly diagram

Bar stem

Part #27160

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

Frame 27250
#1B

Frame assembly diagram

Frame

Part #27250

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

(4-6) Expander Bolt, Washer, And Wedge N/P
(4-6) expander bolt, washer, and wedge

Part #N/P

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

Crank 12301
#5B

Frame assembly diagram

Crank

Part #12301

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

Frame 27240
#1A

Frame assembly diagram

Frame

Part #27240

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

F-wheel 26 14559
#9E

Frame assembly diagram

F-wheel 26

Part #14559

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

Hub Sheel 10641

#NI

All parts diagram

Hub sheel

Part #10641

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

Hub Shell 10643

#NI

All parts diagram

Hub shell

Part #10643

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 blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 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.…