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Generac
Gas Pressure Washer

Model # 1538-0 Official Generac pressure washer

Here are the diagrams and repair parts for Official Generac 1538-0 pressure 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 73 parts  |
Gasket A2069
#12

Pump diagram

Gasket

Part #A2069

Replaced by #A2069GS

?
Manufacturer substitution
This part replaces A2069. Substitute parts can look different from the original.
This item is not returnable
$7.79 | 
11% OFF Phone Price : $8.79
In Stock
Hose A1040D
#33

Unit diagram

Hose

Part #A1040D

Replaced by #705076

?
Manufacturer substitution
This part replaces A1040D. Substitute parts can look different from the original.
This item is not returnable
$21.89 | 
22% OFF Phone Price : $27.89
In Stock
Nozzle Kit B4847
#38

Unit diagram

Nozzle kit

Part #B4847

Replaced by #B4847GS

?
Manufacturer substitution
This part replaces B4847. Substitute parts can look different from the original.
$46.00
In Stock
O-ring B2218
#1

Pump diagram

O-ring

Part #B2218

Replaced by #B2218GS

?
Manufacturer substitution
This part replaces B2218. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
In Stock
Piston Seal 93680
#21

Pump diagram

Piston seal

Part #93680

Replaced by #93680GS

?
Manufacturer substitution
This part replaces 93680. Substitute parts can look different from the original.
This item is not returnable
$10.88 | 
16% OFF Phone Price : $12.88
In Stock
Spring 93652
#9

Pump diagram

Spring

Part #93652

Replaced by #93652GS

?
Manufacturer substitution
This part replaces 93652. Substitute parts can look different from the original.
This item is not returnable
$11.60
In Stock
Connector 21424
#40

Unit diagram

Connector

Part #21424

Replaced by #21424GS

?
Manufacturer substitution
This part replaces 21424. Substitute parts can look different from the original.
This item is not returnable
$21.09 | 
22% OFF Phone Price : $27.09
In Stock
Screw B2261B
#4

Pump diagram

Screw

Part #B2261B

Replaced by #B2261BGS

?
Manufacturer substitution
This part replaces B2261B. Substitute parts can look different from the original.
This item is not returnable
$7.14
In Stock
O-ring Kit B5830
#21

Unit diagram

O-ring kit

Part #B5830

Replaced by #705001

?
Manufacturer substitution
This part replaces B5830. Substitute parts can look different from the original.
$26.04 | 
19% OFF Phone Price : $32.04
In Stock
Bearing 96015
#15

Pump diagram

Bearing

Part #96015

Replaced by #96015GS

?
Manufacturer substitution
This part replaces 96015. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
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

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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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.…

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