Karcher
Gas Pressure Washer

Model #HD3101 Karcher power washer

Here are the diagrams and repair parts for Karcher HD3101 power washer, as well as links to manuals and error code tables, if available.

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Owner’s manual

    Showing 10 of 64 parts

    Cover#7

    3.1 motor/tank/seal Diagram

    Cover

    Part #9.194-507.0

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

    Nozzle#4

    4.0 jet pipe/nozzle/hose Diagram

    Nozzle

    Part #9.104-015.0

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

    Air Filter#10

    3.1 motor/tank/seal Diagram

    Air filter

    Part #6.491-345.0

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

    IGNITION PLUG#13

    3.1 motor/tank/seal Diagram

    Ignition plug

    Part #9.194-528.0

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

    Sleeve#15

    1.0 frame Diagram

    Sleeve

    Part #9.197-010.0

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

    Screw, 2-pack#13

    1.0 frame Diagram

    Screw, 2-pack

    Part #9.186-011.0

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

    OIL DIP ROD#23

    3.1 motor/tank/seal Diagram

    Oil dip rod

    Part #9.194-492.0

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

    WASHER (17)

    See All Related Diagrams

    Washer (17)

    Part #9.198-002.0

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

    GUMMIMUFFE (5)#8

    1.0 frame Diagram

    Gummimuffe (5)

    Part #9.177-204.0

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

    Sleeve#4

    3.2 gear/roller/v-belt Diagram

    Sleeve

    Part #9.190-007.0

    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.

    Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad recoil starter
    Main causes: faulty unloader valve, bad pressure regulator
    Main causes: broken recoil spring, damaged recoil starter
    Things to do: tune up the engine, inject pump saver into the water pump when storing the pressure washer for the winter
    Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine needs tune up
    Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, bad unloader valve
    Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stuck unloader valve
    Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system failure
    Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve

    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

    The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace the chemical injection valve.

    Repair difficulty
    Time required
     15 minutes or less
    April 1, 2013
    By Lyle Weischwill
    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 to replace the O-rings in a leaking pressure washer pump.

    Repair difficulty
    Time required
     45 minutes or less
    April 1, 2013
    By Lyle Weischwill
    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 chemical injection system. Follow these steps to replace a damaged pump.

    Repair difficulty
    Time required
     15 minutes or less

    Articles and videos for gas pressure washers

    Use the advice and tips in these articles and videos to get the most out of your pressure washer.

    November 1, 2015

    7 steps for winterizing and storing a pressure washer

    By Sears PartsDirect staff

    Follow this advice to winterize your pressure washer.

    November 1, 2015

    Solving pressure washer problems

    By Sears PartsDirect staff

    Learn how to solve simple pressure washer problems.

    April 1, 2015

    Pressure washer common questions

    By Sears PartsDirect staff

    See what you can learn from the questions that people most often ask our experts about their pressure washers.