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Briggs & Stratton
Gas Pressure Washer

Model # 020439-00 Official Briggs & Stratton power washer

Here are the diagrams and repair parts for Official Briggs & Stratton 020439-00 power washer, as well as links to manuals and error code tables, if available.

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  • 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”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 32 parts  |
Accelerator 6048

#NI10

All parts diagram

Accelerator

Part #6048

Replaced by #705001

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Manufacturer substitution
This part replaces 6048. Substitute parts can look different from the original.
BEST SELLER
$26.04 | 
19% OFF Phone Price : $32.04
In Stock
Pressure Washer Hose 196006GS
#17

Power washer diagram

Pressure washer hose

Part #196006GS

Replaced by #84006753

?
Manufacturer substitution
This part replaces 196006GS. Substitute parts can look different from the original.
BEST SELLER
$86.25 | 
7% OFF Phone Price : $92.25
In Stock
Pressure Washer Thermal Release Valve (replaces 194298gs) 208673GS
#6

Power washer diagram

Pressure washer thermal release valve (replaces 194298gs)

Part #208673GS

BEST SELLER
$20.84 | 
22% OFF Phone Price : $26.84
In Stock
Briggs & Stratton Pressure Washer Pump Saver (replaces 100515gs) 6039

#NI11

All parts diagram

Briggs & stratton pressure washer pump saver (replaces 100515gs)

Part #6039

$16.56 | 
11% OFF Phone Price : $18.56
In Stock
Snapper Pressure Washer Pump Shaft Key (replaces 23139) 23139GS
#5

Power washer diagram

Snapper pressure washer pump shaft key (replaces 23139)

Part #23139GS

This item is not returnable
$7.29 | 
12% OFF Phone Price : $8.29
In Stock
Husqvarna Pressure Washer Handle Attachment Kit (replaces B2203) B2203GS
#11

Power washer diagram

Husqvarna pressure washer handle attachment kit (replaces b2203)

Part #B2203GS

This item is not returnable
$8.89 | 
10% OFF Phone Price : $9.89
In Stock
Briggs & Stratton Decal 311582GS

#NI05

All parts diagram

Briggs & stratton decal

Part #311582GS

$25.16
In Stock
Briggs & Stratton Handle 206781BSGS
#2

Power washer diagram

Briggs & stratton handle

Part #206781BSGS

$137.52
In Stock
Briggs & Stratton Axle 208410GS

#NI08

All parts diagram

Briggs & stratton axle

Part #208410GS

$25.80
In Stock
Troybilt Pressure Washer Chemical Injection Kit 200279GS
#9

Power washer diagram

Troybilt pressure washer chemical injection kit

Part #200279GS

This item is not returnable
$31.96 | 
16% OFF Phone Price : $37.96
In Stock

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

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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…

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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…

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Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

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Why does my pressure washer's engine lose power?

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

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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…

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Why doesn't my pressure washer recoil starter work?

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

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Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

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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…

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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…

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Repair guides for gas pressure washers

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

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How to install a pressure washer check valve kit

How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

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Repair difficulty
Time required
 120 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 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…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your pressure washers

Use the advice and tips in these articles and videos to get the most out of your pressure washer.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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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…

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