Karcher K3.99M Pressure Washer Spares
If you require a replacement seal, clamp or hose for your Karcher appliance we are sure to have something for your needs.
If you are unsure of your Karcher appliance's model number, take a look at our handy guide on where to find the model number for your appliance here.
Important Note: The model you have selected has more than one serial number which may mean that some parts are serial number specific and therefore may appear multiple times in these search results. If you have the serial number available then please select it from the list below to ensure you get the right part first time.
Select your Serial Number:
Karcher K3.99M (1.423-230.0) : 1 - 12 of 158
Karcher K3.99M Pressure Washer O-Ring Kit
Genuine spare part
For simple replacement of O-rings and safety plug on pressure washer accessories 16 x O-rings (across 5 sizes) 4 x Yellow rubber stoppers The O-Ring... More information
$22.31
Karcher K3.99M Grooved Ring - Seal
Genuine spare part
If the grooved ring seal in your pressure washer pump has snapped or worn out, help ensure optimum performance once again with this quality replacement.... More information
$3.25
Karcher K3.99M K2-K7 High Pressure Replacement Hose - 9m
Genuine spare part
9m High-Pressure Replacement Hose Quick Connect connector - quickly click in and out of the pressure washer and gun Bar Pressure: 160 Bar Maximum... More information
$73.14
Karcher K3.99M Hose Connector
Genuine spare part
3/4" Your pressure washer increases the water pressure from a standard water spigot to over 1,000 PSI, so the water pressure can be used to remove... More information
$9.54
Karcher K3.99M K2-K7 Spray Hand Gun (C-Clip Version)
Genuine spare part
PLEASE NOTE: A New designed gun will be supplied. This will look physically different to the original. The new gun incorporates a child lock in the... More information
$39.60
Karcher K3.99M Spray Lance Extension - 0.5m
Genuine spare part
Extends spray lance by 0.5m Effective cleaning of difficult to reach areas Unlimited pressure adjustment Low pressure detergent Dimensions : L:445... More information
$28.07
Karcher K3.99M Form Seal
Genuine spare part
This replacement Form Seal is located on the pump of your pressure washer and sits between the cylinder head and control piston. If you notice that... More information
Save 10% if you buy 2 or more - only $2.93
$3.25
Save 10% if you buy 2 or more - only $2.93
Karcher K3.99M Metal Fork
Genuine spare part
This metal fork is located in the pump housing on your pressure washer. If your existing fork is damaged, help ensure smooth operation once again... More information
$3.25
Karcher K3.99M HK12 12m High Pressure Hose & Gun
Genuine spare part
PLEASE NOTE: You must search for this part using the product number rather than the model number. This will be an 8 digit number that begins with... More information
$110.21
Karcher K3.99M K2-K7 T-Racer Replacement Nozzle Kit
Genuine spare part
Easily installed nozzles for T100 "T-Racer" and T-300 "T-Racer" 2x Grey nozzles 2x Black elbows 2x Yellow nozzles 2x Stainless steel u-clips PLEASE... More information
$23.75
Karcher K3.99M Water Outlet Connection Cover
Genuine spare part
PLEASE NOTE: This does not include the O Ring - please see associated products If you have a leaking pressure washer, one of the main causes is the... More information
Save 10% if you buy 2 or more - only $9.92
$11.02
Save 10% if you buy 2 or more - only $9.92
Karcher K3.99M K2-K7 FJ6 Foam Nozzle
Genuine spare part
0.6 Litre capacity Add a layer of foamy detergent with the minimum of effort and fuss Powerful foaming action for easy cleaning of all surfaces Ideal... More information
$35.09
