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Briggs & Stratton
Gas Pressure Washer

Model # 020477-00 Official Briggs & Stratton power washer

Here are the diagrams and repair parts for Official Briggs & Stratton 020477-00 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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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 48 parts  |
Pressure Washer O-ring Kit 196002GS
#16

Main unit diagram

Pressure washer o-ring kit

Part #196002GS

Replaced by #705001

?
Manufacturer substitution
This part replaces 196002GS. Substitute parts can look different from the original.
BEST SELLER
$26.04 | 
19% OFF Phone Price : $32.04
In Stock
Pressure Washer Thermal Release Valve (replaces 194298gs) 208673GS
Pressure washer thermal release valve (replaces 194298gs)

Part #208673GS

BEST SELLER
$20.84 | 
22% OFF Phone Price : $26.84
In Stock
Pressure Washer Chemical Injection Kit 317787GS
#D

Pump diagram

Pressure washer chemical injection kit

Part #317787GS

$54.68 | 
10% OFF Phone Price : $60.68
In Stock
Briggs & Stratton Pressure Washer Pump Saver (replaces 100515gs) 6039
Briggs & stratton pressure washer pump saver (replaces 100515gs)

Part #6039

$16.56 | 
11% OFF Phone Price : $18.56
In Stock
Pressure Washer Pump Valve Plug Kit 317056GS
#B

Pump diagram

Pressure washer pump valve plug kit

Part #317056GS

This item is not returnable
$28.82 | 
17% OFF Phone Price : $34.82
In Stock
Pressure Washer Pump Valve Water Seal Kit (replaces 200345gs) 204084GS
#C

Pump diagram

Pressure washer pump valve water seal kit (replaces 200345gs)

Part #204084GS

$81.75 | 
7% OFF Phone Price : $87.75
In Stock
Pressure Washer Chemical Injector Hose 310975GS

#NI06

All parts diagram

Pressure washer chemical injector hose

Part #310975GS

Replaced by #705076

?
Manufacturer substitution
This part replaces 310975GS. Substitute parts can look different from the original.
This item is not returnable
$21.89 | 
22% OFF Phone Price : $27.89
In Stock
Generac Pressure Washer Pump Shaft Key 23139DGS

#NI02

All parts diagram

Generac pressure washer pump shaft key

Part #23139DGS

This item is not returnable
$7.29 | 
12% OFF Phone Price : $8.29
In Stock
Husqvarna Pressure Washer Handle Attachment Kit (replaces B2203) B2203GS
#14

Main unit 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
Pressure Washer Vibration Kit 192134GS
#17

Main unit diagram

Pressure washer vibration kit

Part #192134GS

$36.55 | 
14% OFF Phone Price : $42.55
In Stock

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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…

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…

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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…

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…

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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…

Read more
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…

Read more
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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