Briggs & Stratton
Gas Pressure Washer

Model #020439-00 Briggs & Stratton power washer

Here are the diagrams and repair parts for Briggs & Stratton 020439-00 power washer, as well as links to manuals and error code tables, if available.

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Owner’s manual

    Showing 10 of 32 parts

    Pressure Washer O-Ring Kit

    #NI10

    All parts Diagram

    Accelerator

    Part #6048
    Replaced by #705001
    ?
    Manufacturer substitution
    This part replaces 6048. Substitute parts can look different from the original.
    BEST SELLER
    In Stock
    $15.59 | 
    22% OFF 
    MSRP: $20.00
    Pressure Washer Thermal Release Valve#6

    Power washer Diagram

    Pressure washer thermal release valve

    Part #208673GS
    BEST SELLER
    In Stock
    $12.49 | 
    22% OFF 
    MSRP: $16.00
    Pressure Washer Gun#15

    Power washer Diagram

    Gun assembly

    Part #204627GS
    Replaced by #708807
    ?
    Manufacturer substitution
    This part replaces 204627GS. Substitute parts can look different from the original.
    BEST SELLER
    In Stock
    $59.49 | 
    20% OFF 
    Was: $74.09
    Briggs & Stratton Pressure Washer Pump Saver

    #NI11

    All parts Diagram

    In Stock
    $13.19 | 
    6% OFF 
    MSRP: $14.00
    Pressure Washer Fastening Clip

    #NI03

    All parts Diagram

    Pressure washer fastening clip

    Part #B1797GS
    BEST SELLER
    This item is not returnable
    In Stock
    $6.69
    Lawn & Garden Equipment Retainer Ring#13A

    Power washer Diagram

    Pressure washer retainer clip

    Part #192050GS
    Replaced by #703976
    ?
    Manufacturer substitution
    This part replaces 192050GS. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.09
    Pressure Washer Spray Nozzle#14B

    Power washer Diagram

    Pressure washer spray nozzle

    Part #195983AEGS
    This item is not returnable
    In Stock
    $18.09
    Pressure Washer Handle Attachment Kit#11

    Power washer Diagram

    Pressure washer handle attachment kit

    Part #B2203GS
    This item is not returnable
    In Stock
    $8.89
    Pressure Washer Spray Nozzle (Green)#14C

    Power washer Diagram

    In Stock
    $11.76
    Pressure Washer Detergent Spray Nozzle#14A

    Power washer Diagram

    Pressure washer detergent spray nozzle

    Part #198841GS
    This item is not returnable
    In Stock
    $18.09

    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 common to all 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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