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Karcher K1800G power washer Parts
Here are the diagrams and repair parts for Karcher K1800G power washer, as well as links to manuals and error code tables, if available.
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Browse Parts for K1800G Pressure Washers
Washer Screw
Part #5.115-656.0
The manufacturer no longer makes this part, and there's no substitute part
Gasket
Part #6.362-384.0
The manufacturer no longer makes this part, and there's no substitute part
3.2 motor - 1.133-114.0 /-122.0 diagram
Ch Head Scrw
Part #6.965-007.0
The manufacturer no longer makes this part, and there's no substitute part
Screw
Part #9.194-458.0
The manufacturer no longer makes this part, and there's no substitute part
2.5 cylinder head/pump set diagram
Drain Plug
Part #5.132-100.0
The manufacturer no longer makes this part, and there's no substitute part
2.5 cylinder head/pump set diagram
Nozzle Insert
Part #4.769-035.0
The manufacturer no longer makes this part, and there's no substitute part
A.2 trigger gun-version 2 diagram
Detachable Hose
Part #9.162-307.0
The manufacturer no longer makes this part, and there's no substitute part
3.2 motor - 1.133-114.0 /-122.0 diagram
Carburetor
Part #9.194-452.0
The manufacturer no longer makes this part, and there's no substitute part
4.1 trigger gun-version 1/piston diagram
Gasket
Part #7.362-502.0
The manufacturer no longer makes this part, and there's no substitute part
3.4 gear/housing/coupler diagram
Coupler
Part #9.039-072.0
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your pressure washers
Choose a symptom to see related pressure washer repairs.
Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…
Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…
Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…
Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…
Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…
Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…
Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter…
Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…
Main causes: faulty unloader valve, bad pressure regulator…
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 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 time and Difficulty
15 minutes or less
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 time and Difficulty
45 minutes or less
How to replace a pressure washer unloader valve
The unloader valve recirculates water to protect the pump from damage. If the unloader valve is defective, replace it us…
Repair time and Difficulty
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.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Learn about a new feature added to the Search Bar on Sears PartsDirect…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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