Can’t find your part?   Contact us:+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Horizon
Exercise Cycle

Model # R51 Official Horizon exercise bike

Here are the diagrams and repair parts for Official Horizon R51 exercise bike, 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

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 92 parts  |
Level Dev MB0301002
#B22

Exercise bike diagram

Level dev

Part #MB0301002

Replaced by #000485-00

?
Manufacturer substitution
This part replaces MB0301002. Substitute parts can look different from the original.
This item is not returnable
$3.49
In Stock
Wheel MB0102003
#L02

Exercise bike diagram

Wheel

Part #MB0102003

Replaced by #000014-00

?
Manufacturer substitution
This part replaces MB0102003. Substitute parts can look different from the original.
$7.76
In Stock
Screw ME0102026
#N02

Exercise bike diagram

Screw

Part #ME0102026

Replaced by #004369-00

?
Manufacturer substitution
This part replaces ME0102026. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Cam ML0110001
#D17

Exercise bike diagram

Cam

Part #ML0110001

Replaced by #009491-E

?
Manufacturer substitution
This part replaces ML0110001. Substitute parts can look different from the original.
This item is not returnable
$6.11
In Stock
C-clip MZE0902003
#D19

Exercise bike diagram

C-clip

Part #MZE0902003

Replaced by #005359-00

?
Manufacturer substitution
This part replaces MZE0902003. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Washer MZE0502107
Washer

Part #MZE0502107

Replaced by #005096-Z

?
Manufacturer substitution
This part replaces MZE0502107. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Coverplate MB0624004A
Coverplate

Part #MB0624004A

Replaced by #001160-A

?
Manufacturer substitution
This part replaces MB0624004A. Substitute parts can look different from the original.
This item is not returnable
$2.53
In Stock
C-clip MZE0701001
C-clip

Part #MZE0701001

Replaced by #005330-00

?
Manufacturer substitution
This part replaces MZE0701001. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Rt Crank SP0229001AA
#AT1

Exercise bike diagram

Rt crank

Part #SP0229001AA

Replaced by #015383-AA

?
Manufacturer substitution
This part replaces SP0229001AA. Substitute parts can look different from the original.
$30.81
In Stock
Magnet MC0708001
#T06

Exercise bike diagram

Magnet

Part #MC0708001

Replaced by #003413-00

?
Manufacturer substitution
This part replaces MC0708001. Substitute parts can look different from the original.
This item is not returnable
$6.32
In Stock

Effective articles & videos to help repair your fitness & exercise

View all
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.…

Read more

Parts & More