Model # 9898-1 Official Generac 7.8-hp 2500-psi pressure washer

Here are the diagrams and repair parts for Official Generac 9898-1 7.8-hp 2500-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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Showing 10 of 165 parts |

Pump head & cradle assy diagram

Valve

Part #78298

Replaced by #192980GS

$25.92 |

19% OFF Phone Price : $31.92

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Qty

#29

Cylinder assembly diagram

Piston

Part #95416

Replaced by #95416GS

This item is not returnable

$6.69

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Qty

#33

Cylinder assembly diagram

Gasket

Part #93645

Replaced by #B2668GS

This item is not returnable

$11.89 |

14% OFF Phone Price : $13.89

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#41

Cylinder assembly diagram

Guide

Part #95367

Replaced by #95367GS

$36.47

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Qty

Roller bearing

Part #96542

Replaced by #96542GS

$128.12

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#25

Carburetor assembly diagram

Spring

Part #86037

Replaced by #0C3979

$38.33 |

14% OFF Phone Price : $44.33

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#43

Crancase sub assembly diagram

Stud

Part #77161

Replaced by #G077161

This item is not returnable

$2.94

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Qty

#56

Carburetor assembly diagram

Washer

Part #85953

Replaced by #G085953

$21.14

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Qty

#30

Crancase sub assembly diagram

Retainer

Part #86293

Replaced by #0D24890ESV

$51.52 |

10% OFF Phone Price : $57.52

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#16

Crancase sub assembly diagram

Spool

Part #76365

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…

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 won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

Why does my pressure washer's engine lose power?

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

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 doesn't my pressure washer recoil starter work?

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

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 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…

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

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Repair difficulty

Time required

120 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 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

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 # 9898-1 Official Generac 7.8-hp 2500-psi pressure washer

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas pressure washers

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

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

Why won't the pressure washer starter rope retract?

Why does my pressure washer's engine lose power?

Why is the spray from my pressure washer weak?

Why doesn't my pressure washer recoil starter work?

Why does my pressure washer spray too hard?

Why won't my pressure washer engine start?

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

Repair guides for gas pressure washers

How to install a pressure washer check valve kit

How to install a pressure washer O-ring kit

How to install a pressure washer chemical injection kit

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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