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
Lauson
Lawn & Garden Engine

Model # SBV-18 Official Lauson gas engine short block

Here are the diagrams and repair parts for Official Lauson SBV-18 gas engine short block, 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 58 parts  |
Plug 27625
#74

Unit parts diagram

Plug

Part #27625

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

Gear 27884
#13

Unit parts diagram

Gear

Part #27884

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

Intake Valve 27877
#5

Unit parts diagram

Intake valve

Part #27877

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

Ex Valve 27878
#6

Unit parts diagram

Ex valve

Part #27878

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

Pipe Plug 27642
#37

Unit parts diagram

Pipe plug

Part #27642

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

Lifter 27893
#21

Unit parts diagram

Lifter

Part #27893

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

Pston/pin 30662
#14

Unit parts diagram

Pston/pin

Part #30662

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

Pin 20810
#10

Unit parts diagram

Pin

Part #20810

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

Screw 29117
#27

Unit parts diagram

Screw

Part #29117

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

Bolt 21718
#18

Unit parts diagram

Bolt

Part #21718

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

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

View all

Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

Read more

Why won't my pressure washer engine start?

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Read more

Why does my pressure washer's engine lose power?

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Read more

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

Read more

Why is smoke coming from the pressure washer's exhaust?

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Read more

Why does water spray out of my pressure washer's pressure relief valve?

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Read more

Why is the spray from my pressure washer weak?

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Read more

Why won't my pressure washer mix in the detergent?

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Read more

Why doesn't my pressure washer recoil starter work?

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Read more

Repair guides for gas pressure washers

These step-by-step repair guides will help you safely fix what’s broken on your pressure washer.

View all
How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

Read more
Repair difficulty
Time required
 15 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a pressure washer pump

How to replace a pressure washer pump

The pump can be damaged by air in the inlet water supply or by chemicals that remain in the pump body after using the ch…

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 pressure washer.

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