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Generac
Gas Pressure Washer

Model #9585-3 Official Generac pressure washer

Here are the diagrams and repair parts for Generac 9585-3 pressure washer, as well as links to manuals and error code tables, if available.

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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.

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This is the number corresponding to the part on the diagram / schematic

Showing 10 of 182 parts

Lawn & Garden Equipment Engine Spark Plug (replaces 12-132-02, 12-132-02-S, 12-132-06, 28-132-01-S, 491055, 499608, 72347, FF-20, M78543)#35

Gn-series engine Diagram

Spark plug

Part #72347
Replaced by #RC12YC
?
Manufacturer substitution
This part replaces 72347. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
$3.94 | 
20% OFF 
Phone Price: $4.94
Pressure Washer Gun (replaces 199990GS)#46

Pressure washer Diagram

Gun assembly

Part #91628
Replaced by #704312
?
Manufacturer substitution
This part replaces 91628. Substitute parts can look different from the original.
BEST SELLER
In Stock
$80.59 | 
19% OFF 
MSRP: $100.00
Lawn & Garden Equipment Engine Air Filter#11

Gn-series engine Diagram

Filter

Part #78601
Replaced by #78601GS
?
Manufacturer substitution
This part replaces 78601. Substitute parts can look different from the original.
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In Stock
$12.65 | 
16% OFF 
MSRP: $15.00
Pressure Washer Quick-Connect Kit (replaces 6050)

#NI

All parts Diagram

Adaptor-quic

Part #100518GS
Replaced by #312981GS
?
Manufacturer substitution
This part replaces 100518GS. Substitute parts can look different from the original.
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In Stock
$42.29 | 
11% OFF 
Phone Price: $47.29
Pressure Washer Water Hose (replaces 100513GS, 185877GS, 6041)

#NI

All parts Diagram

Pressure washer water hose, 4,000-psi

Part #100513GS
Replaced by #206192GS
?
Manufacturer substitution
This part replaces 100513GS. Substitute parts can look different from the original.
In Stock
$123.97 | 
7% OFF 
Phone Price: $133.97
Lawn & Garden Equipment Engine Pre-Filter#12

Gn-series engine Diagram

Filtter

Part #78602
Replaced by #G078602
?
Manufacturer substitution
This part replaces 78602. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.49 | 
29% OFF 
Phone Price: $3.49
Pressure Washer Valve Cover Gasket#42

Long block Diagram

Gasket

Part #88397
Replaced by #C8754
?
Manufacturer substitution
This part replaces 88397. Substitute parts can look different from the original.
This item is not returnable
In Stock
$17.39 | 
10% OFF 
Phone Price: $19.39
Generator Air Filter Base#31

Gn-series engine Diagram

Base

Part #78607
Replaced by #G078607
?
Manufacturer substitution
This part replaces 78607. Substitute parts can look different from the original.
This item is not returnable
In Stock
$27.94
Lawn & Garden Equipment Engine Carburetor Mounting Gasket#8

Gn-series engine Diagram

Gasket

Part #78631
Replaced by #G078631
?
Manufacturer substitution
This part replaces 78631. Substitute parts can look different from the original.
This item is not returnable
In Stock
$6.54
Rod#26

Gn-series engine Diagram

Governor rod

Part #86384
Replaced by #0D7458
?
Manufacturer substitution
This part replaces 86384. Substitute parts can look different from the original.
This item is not returnable
In Stock
$2.67

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

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 recoil starter
Read more

Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator
Read more

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter
Read more

What routine maintenance does my pressure washer need?

Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter
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 needs tune up
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, 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, stuck unloader valve
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 failure
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

Repair guides for gas pressure washers

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

April 1, 2013

How to install a pressure washer chemical injection kit

Lyle Weischwill
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 the chemical injection valve.

Repair difficulty
Time required
 15 minutes or less
April 1, 2013

How to install a pressure washer O-ring kit

Lyle Weischwill
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 to replace the O-rings in a leaking pressure washer pump.

Repair difficulty
Time required
 45 minutes or less
April 1, 2013

How to replace a pressure washer pump

Lyle Weischwill
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 chemical injection system. Follow these steps to replace a damaged pump.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all pressure washers

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

August 30, 2022

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

Lyle Weischwill
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.

Read more
August 11, 2022

Tapping into a new feature in the Search Bar on Sears PartsDirect

Lyle Weischwill
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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June 29, 2022

Top questions about Sears and Sears PartsDirect

Lyle Weischwill
Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.

Read more

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