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) : 37 - 48 of 161
Karcher K3.99M Suction Connection
Genuine spare part
If the suction connection in your pressure washer is damaged, help ensure smooth performance once again with this quality replacement. Please Note:... More information
$15.46
Karcher K3.99M Control Head Housing
Genuine spare part
If the control head housing for your pressure washer is damaged or faulty, help ensure optimum performance once again with this quality replacement.... More information
$45.36
Karcher K3.99M Pressure Washer Clamp
Genuine spare part
If the clamp on your pressure washer is damaged then you may need to replace it without further delays. With this replacement spare part in place,... More information
$3.25
Karcher K3.99M Chemical Filter With Weight
Genuine consumable
Help ensure optimum performance from your pressure washer with this quality replacement filter that comes complete with weight. Suitable for select... More information
$15.46
Karcher K3.99M O-Ring Seal
Genuine spare part
Size: 62 x 3 (mm) This replacement O-Ring Seal is located in your pressure washer's motor system and fits on the thrust guidance. If your existing... More information
$3.25
Karcher K3.99M Spring
Genuine spare part
If the spring in your pressure washer has snapped or become damaged, help ensure optimum performance once again with this quality replacement. Suitable... More information
$3.25
Karcher K3.99M Pressure Washer Outlet Sleeve
Genuine spare part
If the outer sleeve for your pressure washer is damaged or faulty, ensure optimum performance once again with this quality replacement. Suitable for... More information
Save 10% if you buy 2 or more - only $7.27
$8.07
Save 10% if you buy 2 or more - only $7.27
Karcher K3.99M Capacitor 16UF
Genuine spare part
Type: 16UF This capacitor is located in the electric box of your pressure washer. If it has become faulty, have no fear and take advantage of this... More information
$25.18
Karcher K3.99M T-Racer Brass Bolt & Gasket Set
Genuine spare part
Prevent unnecessary leaks or internal damage to your pressure washer's T-Racer attachment with this genuine Brass Bolt & Gasket Set! Please check... More information
$22.31
Karcher K3.99M K2-K7 Power Swab Surface Cleaner
Genuine spare part
Perfect for removing stubborn dirt on variety of surfaces 3 x Integrated power nozzles Integrated brush - fast removal of residual water Compact design... More information
$66.98
Karcher K3.99M Ventil Set
Genuine spare part
If the ventilset for your pressure washer is damaged, this great replacement kit is ready to help get your pressure washer back in full working order.... More information
$16.54
Karcher K3.99M Pump Spacer Seal
Genuine spare part
Located on the thrust guidance for the piston the spacer seal is important to the smooth running of the pressure washer. This replacement seal can... More information
$3.25