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Gas Pressure Washer

Model # 1674-0 Official Generac pressure washer

Here are the diagrams and repair parts for Official Generac 1674-0 pressure washer, as well as links to manuals and error code tables, if available.

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Browse Parts for1674-0 Pressure Washers

  • Kit 190862GS
    #28

    Unit diagram

    Kit

    Part #190862GS

    Replaced by #705001

    ?
    Manufacturer substitution
    This part replaces 190862GS. Substitute parts can look different from the original.
    BEST SELLER
    $27.70
    20% OFF Phone Price : $34.56
    In Stock
  • Hose B5642GS
    #32

    Unit diagram

    Hose

    Part #B5642GS

    Replaced by #84006753

    ?
    Manufacturer substitution
    This part replaces B5642GS. Substitute parts can look different from the original.
    BEST SELLER
    In Stock
  • Pressure Washer Outlet Tube Kit 190634GS
    #C

    Pump diagram

    Pressure washer outlet tube kit

    Part #190634GS

    Replaced by #201497GS

    ?
    Manufacturer substitution
    This part replaces 190634GS. Substitute parts can look different from the original.
    BEST SELLER
    $30.97
    18% OFF Phone Price : $37.93
    In Stock
  • Pump 189970GS
    #36

    Unit diagram

    Pump

    Part #189970GS

    Replaced by #207365GS

    ?
    Manufacturer substitution
    This part replaces 189970GS. Substitute parts can look different from the original.
    BEST SELLER
    $232.10
    8% OFF Phone Price : $251.28
    In Stock
  • Troybilt Pressure Washer Pump Seal Kit 190595GS
    #K

    Pump diagram

    Troybilt pressure washer pump seal kit

    Part #190595GS

    $94.00
    6% OFF Phone Price : $100.00
    In Stock
  • Pressure Washer Inlet Check Valve Kit 190592GS
    #F

    Pump diagram

    Pressure washer inlet check valve kit

    Part #190592GS

    This item is not returnable
    $31.22
    16% OFF Phone Price : $37.22
    In Stock
  • Plate 190579GS
    #46

    Pump diagram

    Plate

    Part #190579GS

    Replaced by #193972GS

    ?
    Manufacturer substitution
    This part replaces 190579GS. Substitute parts can look different from the original.
    $68.39
    8% OFF Phone Price : $74.39
    In Stock
  • Valve Seat 190580GS
    #47

    Pump diagram

    Valve seat

    Part #190580GS

    Replaced by #193972GS

    ?
    Manufacturer substitution
    This part replaces 190580GS. Substitute parts can look different from the original.
    $68.39
    8% OFF Phone Price : $74.39
    In Stock
  • Ball 190582GS
    #68

    Pump diagram

    Ball

    Part #190582GS

    Replaced by #193972GS

    ?
    Manufacturer substitution
    This part replaces 190582GS. Substitute parts can look different from the original.
    $68.39
    8% OFF Phone Price : $74.39
    In Stock
  • Snapper Push Nut 190146GS
    #12

    Unit diagram

    Snapper push nut

    Part #190146GS

    In Stock

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

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

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

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Top questions about Sears and Sears PartsDirect

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