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Generac 0457-0 5-hp 1800-psi pressure washer Parts
Here are the diagrams and repair parts for Generac 0457-0 5-hp 1800-psi pressure washer, as well as links to manuals and error code tables, if available.
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Browse Parts for 0457-0 Pressure Washers
#NI
All parts diagram
Complete Pump Assembly
Part #87528
The manufacturer no longer makes this part, and there's no substitute part
Accessories and attachments diagram
Degreaser
Part #75103
The manufacturer no longer makes this part, and there's no substitute part
Accessories and attachments diagram
Brush Kit
Part #75190
The manufacturer no longer makes this part, and there's no substitute part
Accessories and attachments diagram
Connector
Part #75187
The manufacturer no longer makes this part, and there's no substitute part
Pump assembly diagram
Pin
Part #112-91383
The manufacturer no longer makes this part, and there's no substitute part
Pump assembly diagram
Connector
Part #115-91383
The manufacturer no longer makes this part, and there's no substitute part
Main assembly diagram
Push Nut
Part #75402
The manufacturer no longer makes this part, and there's no substitute part
Accessories and attachments diagram
Connector
Part #75198
The manufacturer no longer makes this part, and there's no substitute part
Accessories and attachments diagram
Coupler
Part #75188
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
O-ring Kit
Part #100516GS
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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