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Westinghouse
Gas Pressure Washer

Model # WP2500 Official Westinghouse power washer

Here are the diagrams and repair parts for Official Westinghouse WP2500 power washer, as well as links to manuals and error code tables, if available.

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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 160 parts  |
Valve Cover 180175
#116

Engine diagram

Valve cover

Part #180175

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

Wobble Plate 230070
#4

Pump diagram

Wobble plate

Part #230070

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

Starter Hand 170022
#4

Engine diagram

Starter hand

Part #170022

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

Blower Housing 170034
#16

Engine diagram

Blower housing

Part #170034

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

Blower Housing 170035
#17

Engine diagram

Blower housing

Part #170035

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

Bolt M8x45 100057
#15

Frame diagram

Bolt m8x45

Part #100057

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

Screw M8*25 230078
#12

Pump diagram

Screw m8*25

Part #230078

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

Bolt 170020
#2

Engine diagram

Bolt

Part #170020

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

Unilateral V 230130
#65

Pump diagram

Unilateral v

Part #230130

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

Zs Engine Wp 180133
#1

Frame diagram

Zs engine wp

Part #180133

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.

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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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Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

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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…

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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 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 won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

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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 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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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 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…

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Repair difficulty
Time required
 45 minutes or less
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 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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