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
Kohler
Lawn & Garden Engine

Model # KS540-3012 Official Kohler engine

Here are the diagrams and repair parts for Official Kohler KS540-3012 engine, 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 142 parts  |
Lawn & Garden Equipment Engine Oil, Sae 30, 1-qt (replaces 40048) 25-357-03-S
#NI21

Sealant, thread lock & lubricant diagram

Lawn & garden equipment engine oil, sae 30, 1-qt (replaces 40048)

Part #25-357-03-S

BEST SELLER
$10.82 | 
16% OFF Phone Price : $12.82
In Stock
Lawn & Garden Equipment Engine Fuel Filter (replaces 25-050-08-s) 25-050-22-S
#11

Fuel system diagram

Lawn & garden equipment engine fuel filter (replaces 25-050-08-s)

Part #25-050-22-S

BEST SELLER
$9.14 | 
10% OFF Phone Price : $10.14
In Stock
Fuel Hose 25-111-34-S
#9

Fuel system diagram

Fuel hose

Part #25-111-34-S

Replaced by #25-111-81-S

?
Manufacturer substitution
This part replaces 25-111-34-S. Substitute parts can look different from the original.
$21.91 | 
21% OFF Phone Price : $27.91
In Stock
Lawn & Garden Equipment Engine Electric Starter (replaces 20-098-10-s, Kh-20-098-11-s) 20-098-11-S
#1

Starter diagram

Lawn & garden equipment engine electric starter (replaces 20-098-10-s, kh-20-098-11-s)

Part #20-098-11-S

$136.39 | 
8% OFF Phone Price : $148.39
In Stock
Hose Clamp 25-237-14-S
#NI01

Air intake diagram

Hose clamp

Part #25-237-14-S

Replaced by #25-237-31-S

?
Manufacturer substitution
This part replaces 25-237-14-S. Substitute parts can look different from the original.
This item is not returnable
$7.29 | 
12% OFF Phone Price : $8.29
In Stock
Lawn & Garden Equipment Engine Voltage Regulator (replaces Kh-25-403-35-s) 25-403-35-S
#16

Ignition diagram

Lawn & garden equipment engine voltage regulator (replaces kh-25-403-35-s)

Part #25-403-35-S

$27.20
In Stock
Craftsman Lawn & Garden Equipment Woodruff Key (replaces Kh-x-42-15, X4215, X-42-15) X-42-15-S
#3

Crankshaft diagram

Craftsman lawn & garden equipment woodruff key (replaces kh-x-42-15, x4215, x-42-15)

Part #X-42-15-S

This item is not returnable
$3.69 | 
21% OFF Phone Price : $4.69
In Stock
Air Filter/p 22-883-01-S1
#5

Air intake diagram

Air filter/p

Part #22-883-01-S1

$16.71
In Stock
Lawn & Garden Equipment Engine Self-tapping Screw 25-086-399-S
Lawn & garden equipment engine self-tapping screw

Part #25-086-399-S

Replaced by #25-086-473-S

?
Manufacturer substitution
This part replaces 25-086-399-S. Substitute parts can look different from the original.
This item is not returnable
$3.16 | 
24% OFF Phone Price : $4.16
In Stock
Lawn & Garden Equipment Engine Flywheel Key (replaces 25-340-02-s, Kh-25-340-02-s) 25-340-04-S
#6

Ignition diagram

Lawn & garden equipment engine flywheel key (replaces 25-340-02-s, kh-25-340-02-s)

Part #25-340-04-S

This item is not returnable
$6.34
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Symptoms for gas walk-behind mowers

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

View all

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 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 cut unevenly?

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

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

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 vibrate a lot?

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

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 recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower carburetor

How to replace a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Replace the carburetor if it's clogged or damaged.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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
What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…

Read more

Parts & More

Lawn Sweeper
Lawn Sweeper Parts