Model # 0457-0 Official Generac 5-hp 1800-psi pressure washer

Here are the diagrams and repair parts for Official 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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Model diagram and schematic

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ALL PARTS

Showing 10 of 146 parts |

#NI

All parts diagram

O-ring kit

Part #100516GS

Replaced by #705001

$26.04 |

19% OFF Phone Price : $32.04

In Stock

Qty

#27

Pump assembly diagram

O-ring

Part #115-87628P

Replaced by #192914GS

This item is not returnable

$26.70 |

18% OFF Phone Price : $32.70

In Stock

Qty

#29

Main assembly diagram

Shock mount

Part #87841

Replaced by #87841GS

This item is not returnable

$7.14

In Stock

Qty

#38

Main assembly diagram

Tube filter

Part #89800

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

#16

Pump assembly diagram

Oil seal

Part #165-93360P

Replaced by #16593360PGS

$29.69

In Stock

Qty

#23

Pump assembly diagram

Dipstick

Part #112-87628P

Replaced by #11287628PGS

$40.56

In Stock

Qty

#19

Pump assembly diagram

Circle clip

Part #108-87628P

Replaced by #10887628PGS

$10.23

In Stock

Qty

#32

Main assembly diagram

Guide assembly

Part #91093

Replaced by #91093GS

$87.18

In Stock

Qty

#NI

All parts diagram

Adaptor-quic

Part #100518GS

Replaced by #312981GS

$43.27 |

12% OFF Phone Price : $49.27

In Stock

Qty

#68

Pump assembly diagram

Bearing

Part #125-87628P

Replaced by #12587628PGS

$105.16

In Stock

Qty

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

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Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

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…

Why does my pressure washer's engine lose power?

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

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

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…

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…

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…

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…

Why doesn't my pressure washer recoil starter work?

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.

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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

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

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

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

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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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Model # 0457-0 Official Generac 5-hp 1800-psi pressure washer

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas pressure washers

Why does my pressure washer spray too hard?

Why won't my pressure washer engine start?

Why does my pressure washer's engine lose power?

Why won't the pressure washer starter rope retract?

Why is smoke coming from the pressure washer's exhaust?

Why does water spray out of my pressure washer's pressure relief valve?

Why is the spray from my pressure washer weak?

Why won't my pressure washer mix in the detergent?

Why doesn't my pressure washer recoil starter work?

Repair guides for gas pressure washers

How to install a pressure washer chemical injection kit

How to install a pressure washer O-ring kit

How to replace a pressure washer pump

Effective articles & videos to help repair your pressure washers

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Tapping into a new feature in the Search Bar on Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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