Huffy
Cycling

Model # 16879 Official Huffy 21-speed ironman bicycle

Here are the diagrams and repair parts for Official Huffy 16879 21-speed ironman 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 39 parts  |

Tire Tube 16225
#8

Bicycle diagram

Tire tube

Part #16225

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

Head Beari 16879BRGHD
#3

Bicycle diagram

Head beari

Part #16879BRGHD

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

Fork 3C6538-1710
#2

Bicycle diagram

Fork

Part #3C6538-1710

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

Box (nsp) N/P
#1

Bicycle diagram

Box (nsp)

Part #N/P

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

Derailleur 3C7288-A01
#22

Bicycle diagram

Derailleur

Part #3C7288-A01

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

Pedal 3C7298-A01
#31

Bicycle diagram

Pedal

Part #3C7298-A01

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

Front Wheel 3C6544
#5

Bicycle diagram

Front wheel

Part #3C6544

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

Bar Ends 3C5329-A02
#35

Bicycle diagram

Bar ends

Part #3C5329-A02

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

Tire 3C3744-A01
#7

Bicycle diagram

Tire

Part #3C3744-A01

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

Rear Wheel 3C6719
#6

Bicycle diagram

Rear wheel

Part #3C6719

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Repair guides for treadmills

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

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for treadmills

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…