Water Pump

Model # 390288910 Official Craftsman submersible pump

Here are the diagrams and repair parts for Official Craftsman 390288910 submersible pump, as well as links to manuals and error code tables, if available.

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Browse Parts for
390288910 Submersible Pump
Coupling P11-47
#2CA

High capacity diagram

Coupling

Part #P11-47

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

Lock Washer U43-11SS
#4

High capacity diagram

Lock washer

Part #U43-11SS

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

Check Valve P122-1
#7

High capacity diagram

Check valve

Part #P122-1

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

Lead Cover P3-251SS
#5B

High capacity diagram

Lead cover

Part #P3-251SS

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

Slinger P69-4
Slinger

Part #P69-4

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

Coupling P11-21
#2CB

High capacity diagram

Coupling

Part #P11-21

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

Pump 1 Hp P364-7
#11A

High capacity diagram

Pump 1 hp

Part #P364-7

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

Screen P8-20
#9

High capacity diagram

Screen

Part #P8-20

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

Slinger Top P69-21
#2BA

High capacity diagram

Slinger top

Part #P69-21

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

Nut U36-41SS
#3

High capacity diagram

Nut

Part #U36-41SS

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.

Main causes: faulty unloader valve, bad pressure regulator…

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Main causes: broken recoil spring, damaged recoil starter…

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Repair guides for gas pressure washers

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

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…

Repair difficulty
Time required
 15 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…

Repair difficulty
Time required
 45 minutes or less
How to replace a pressure washer pump

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 ch…

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.

Top 10 electric lawn and garden tools

Top 10 electric lawn and garden tools

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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.…

7 steps for winterizing and storing a pressure washer

7 steps for winterizing and storing a pressure washer

Follow this advice to winterize your pressure washer.…