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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Bolens
Farming

Model # 21B-121R765 Official Bolens cultivator

Here are the diagrams and repair parts for Official Bolens 21B-121R765 cultivator, 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.

Owner’s manual

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 85 parts  |
Clutch 791-182369
#35

Engine diagram

Clutch

Part #791-182369

Replaced by #753-05860

?
Manufacturer substitution
This part replaces 791-182369. Substitute parts can look different from the original.
BEST SELLER
$33.15 | 
13% OFF Phone Price : $38.15
In Stock
Lawn & Garden Equipment Bolt 791-182723
#49

Engine diagram

Lawn & garden equipment bolt

Part #791-182723

This item is not returnable
$5.91
In Stock
Lawn & Garden Equipment Engine Carburetor Mounting Gasket 791-610675
#9

Engine diagram

Lawn & garden equipment engine carburetor mounting gasket

Part #791-610675

This item is not returnable
$5.43 | 
16% OFF Phone Price : $6.43
In Stock
Lawn & Garden Equipment Screw 791-182195
#25

Boom and trimmer diagram

Lawn & garden equipment screw

Part #791-182195

This item is not returnable
$10.87 | 
16% OFF Phone Price : $12.87
In Stock
Tiller Clutch Cover Screw 791-181345
#38

Engine diagram

Tiller clutch cover screw

Part #791-181345

This item is not returnable
$5.28 | 
16% OFF Phone Price : $6.28
In Stock
Lawn & Garden Equipment Engine Fuel Tank Cap (replaces 753-1187) 791-182612
#18

Engine diagram

Lawn & garden equipment engine fuel tank cap (replaces 753-1187)

Part #791-182612

This item is not returnable
$25.22 | 
17% OFF Phone Price : $30.22
In Stock
Lawn & Garden Equipment Bolt 791-182899
#6

Boom and trimmer diagram

Lawn & garden equipment bolt

Part #791-182899

$12.54
In Stock
Lawn & Garden Equipment Engine Exhaust Gasket 753-04619
#44

Engine diagram

Lawn & garden equipment engine exhaust gasket

Part #753-04619

This item is not returnable
$11.80 | 
14% OFF Phone Price : $13.80
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pulley 753-1199
#25

Engine diagram

Lawn & garden equipment engine recoil starter pulley

Part #753-1199

This item is not returnable
$25.64 | 
16% OFF Phone Price : $30.64
In Stock
Lawn & Garden Equipment Engine Carburetor 753-04333
#8

Engine diagram

Lawn & garden equipment engine carburetor

Part #753-04333

$57.69 | 
16% OFF MSRP : $69.00
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

View all

Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Read more

Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Read more

Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Read more

Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Read more

Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Read more

Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Read more

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.

View all
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…

Read more
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. …

Read more
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…

Read more
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.

View all
Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

Read more
How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

Read more
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.…

Read more

Parts & More