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
MTD
Farming

Model # 21BK144G799 Official MTD cultivator

Here are the diagrams and repair parts for Official MTD 21BK144G799 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 72 parts  |
Lawn & Garden Equipment Engine Fuel Tank 753-06240
#32

Short block/fuel tank diagram

Lawn & garden equipment engine fuel tank

Part #753-06240

BEST SELLER
$28.18 | 
26% OFF MSRP : $38.00
In Stock
Lawn & Garden Equipment Engine Carburetor (replaces 753-05830) 753-05440
#23

Short block/fuel tank diagram

Lawn & garden equipment engine carburetor (replaces 753-05830)

Part #753-05440

BEST SELLER
$63.86 | 
29% OFF MSRP : $90.00
In Stock
Stud 10-32 753-05507
#25

Short block/fuel tank diagram

Stud 10-32

Part #753-05507

Replaced by #710-04517

?
Manufacturer substitution
This part replaces 753-05507. Substitute parts can look different from the original.
This item is not returnable
$8.30 | 
11% OFF Phone Price : $9.30
In Stock
Push Cap 753-04062
#25

Upper handles/tines/shield diagram

Push cap

Part #753-04062

Replaced by #726-0299

?
Manufacturer substitution
This part replaces 753-04062. Substitute parts can look different from the original.
This item is not returnable
$12.39 | 
14% OFF Phone Price : $14.39
In Stock
Lawn & Garden Equipment Carburetor Gasket (replaces 753-05250) 753-05366
#22

Short block/fuel tank diagram

Lawn & garden equipment carburetor gasket (replaces 753-05250)

Part #753-05366

This item is not returnable
$24.62 | 
17% OFF Phone Price : $29.62
In Stock
Cultivator Air Filter 753-05506
#31

Short block/fuel tank diagram

Cultivator air filter

Part #753-05506

This item is not returnable
$7.11 | 
12% OFF Phone Price : $8.11
In Stock
Lawn & Garden Equipment Engine Breather Tube 791-182379
#7

Short block/fuel tank diagram

Lawn & garden equipment engine breather tube

Part #791-182379

This item is not returnable
$7.17 | 
12% OFF Phone Price : $8.17
In Stock
Tiller Gear Case (replaces 753-05982) 753-06063
#26

Upper handles/tines/shield diagram

Tiller gear case (replaces 753-05982)

Part #753-06063

$107.74 | 
28% OFF MSRP : $150.00
In Stock
Screw 753-04595
#2

Short block/fuel tank diagram

Screw

Part #753-04595

Replaced by #710-04194

?
Manufacturer substitution
This part replaces 753-04595. Substitute parts can look different from the original.
This item is not returnable
$6.46 | 
13% OFF Phone Price : $7.46
In Stock
Line Trimmer Oil Plug O-ring 791-182290
#9

Short block/fuel tank diagram

Line trimmer oil plug o-ring

Part #791-182290

This item is not returnable
$7.57 | 
12% OFF Phone Price : $8.57
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