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Craftsman
Water Pump

Model # 471461121 Official Craftsman portable self-powered pumping unit

Here are the diagrams and repair parts for Official Craftsman 471461121 portable self-powered pumping unit, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 68 parts  |
Hose Clamp 5051010
#11

Engine diagram

Hose clamp

Part #5051010

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

Hose Clamp 5051005
#17

Engine diagram

Hose clamp

Part #5051005

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

Pump 5270766
#8

Engine diagram

Pump

Part #5270766

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

Bearing 5270856
#24

Pump diagram

Bearing

Part #5270856

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

Valve Plate 5270779
#5B

Pump diagram

Valve plate

Part #5270779

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

Piston 5154004
#20

Pump diagram

Piston

Part #5154004

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

Washer 5016018
#15

Pump diagram

Washer

Part #5016018

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

Gasket 5072012
#4

Pump diagram

Gasket

Part #5072012

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

Cap Screw 5034025
#13

Pump diagram

Cap screw

Part #5034025

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

Handle 5078034
#13

Valve diagram

Handle

Part #5078034

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 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…

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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

Articles and videos for gas 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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Choosing the correct spray tip for a pressure washer

Choosing the correct spray tip for a pressure washer

Spray tips vary in pressure and angle of spray. This guide matches the spray tip to the cleaning job.…

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Solving pressure washer problems

Solving pressure washer problems

Learn how to solve simple pressure washer problems.…

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