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
Okuma
Lawn & Garden Engine

Model # 5.5 OHV Official Okuma engine

Here are the diagrams and repair parts for Official Okuma 55-OHV 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.

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 113 parts  |
Exhaust Gasket P54590
#89

Engine assembly diagram

Exhaust gasket

Part #P54590

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

Bolt P54058
#24

Engine assembly diagram

Bolt

Part #P54058

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

Oil Dipstick P54086
#37

Engine assembly diagram

Oil dipstick

Part #P54086

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

Cylinder Head P54064
#27

Engine assembly diagram

Cylinder head

Part #P54064

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

Snap Ring P54032
#14

Engine assembly diagram

Snap ring

Part #P54032

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

Bolt P54598
#93

Engine assembly diagram

Bolt

Part #P54598

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

Cylinder Head P54052
#22

Engine assembly diagram

Cylinder head

Part #P54052

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

Valve Spring P54154
#66

Engine assembly diagram

Valve spring

Part #P54154

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

Sleeve P54036
#16

Engine assembly diagram

Sleeve

Part #P54036

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

Intake Valve P54152
#65

Engine assembly diagram

Intake valve

Part #P54152

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

Symptoms for gas ranges

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

Read more

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

Read more

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a gas range oven control board

How to replace a gas range oven control board

These step-by-step instructions explain how to replace an oven control board on a gas range…

Read more
Repair difficulty
Time required
 15 minutes or less

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

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