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
Craftsman
Walk-Behind Mower

Model # 131907851 Official Craftsman 20" rotary lawn mower with rear bagger

Here are the diagrams and repair parts for Official Craftsman 131907851 20" rotary lawn mower with rear bagger, 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 47 parts  |
Decal 78850
#7

Replacement parts diagram

Decal

Part #78850

Replaced by #539913010

?
Manufacturer substitution
This part replaces 78850. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Screw 55187
#11

Replacement parts diagram

Screw

Part #55187

Replaced by #532428867

?
Manufacturer substitution
This part replaces 55187. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Washer 62335
#34

Replacement parts diagram

Washer

Part #62335

Replaced by #532062335

?
Manufacturer substitution
This part replaces 62335. Substitute parts can look different from the original.
$13.69
In Stock
Hairpin 51793
#5

Replacement parts diagram

Hairpin

Part #51793

Replaced by #532051793

?
Manufacturer substitution
This part replaces 51793. Substitute parts can look different from the original.
This item is not returnable
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Blade 69229
#40

Replacement parts diagram

Blade

Part #69229

Replaced by #532145106

?
Manufacturer substitution
This part replaces 69229. Substitute parts can look different from the original.
$28.46
In Stock
Washer 62333
#27

Replacement parts diagram

Washer

Part #62333

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

Walk-behind Lawn Mower Engine 82392
#45

Replacement parts diagram

Walk-behind lawn mower engine

Part #82392

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

Wheel Assembly 82870
#31

Replacement parts diagram

Wheel assembly

Part #82870

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

Grass Bag 81032
#12

Replacement parts diagram

Grass bag

Part #81032

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

Deflector 77747
#14

Replacement parts diagram

Deflector

Part #77747

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

Effective articles & videos to help repair your walk-behind mowers

View all
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.…

Read more
Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Read more
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