Karcher K4 COMPACT CAR RU (1.637-320.0) Pressure Washer Spares & Parts

Grooved Ring

Genuine Spare Part

How a grooved ring works on a pressure washer The high-pressure outlet and pump head are sealed together by the grooved ring. The grooves on it fit into slots on the pump head and outlet to create a secur...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 13
• 11 head pump wcm spare part (9.001-999.0) Ref 238

22Mm Manifold & Pressure Piston

Genuine Spare Part

What does the pressure piston do for the pressure washer? The pressure piston works by reciprocating back and forth inside the cylinder, creating pressure that forces water through the nozzle. As the pist...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 8

Cylindrical Head Pump Set

Genuine Spare Part

What does the head pump do for the pressure washer? When the pressure washer is powered on, the head pump uses an internal mechanism to create a high-pressure stream of water. It effectively removes dirt,...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 11

Metal Fork

Genuine Spare Part

What does the metal fork do in pressure washers? The metal fork connects the spray gun to the nozzle or lance extension and allows control of the flow and direction of the pressurised water. It acts as a ...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 2

Form Seal

Genuine Spare Part

How does a pressure washer form seal work? The form seal is designed to fit into specific grooves or mating surfaces within the pressure washer. It acts as a barrier, preventing water or other fluids from...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 10
• 11 head pump wcm spare part (9.001-999.0) Ref 237

O Ring Seal Gasket

Genuine Spare Part

O-ring seal to create a watertight seal between pressure washer parts  When pipes, hoses, or fittings in pressure washers cross, a rubber ring shaped like the letter "O" creates a watertigh...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 30 Motor Ref 9

Viscous Oil Grease 50Ml

Genuine Spare Part

How do you use viscous oil grease on a pressure washer? Viscous oil grease lubricates and protects pressure washer components like the pump seals and pistons, to ensure smooth operation and extend their l...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 30 Motor Ref 5

O Ring Seal Kit

Genuine Spare Part

What is an O-ring seal in pressure washers? An O-ring seal in pressure washers is a type of rubber ring designed to create a watertight seal between two components where pipes, hoses, or fittings connect....

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 43 Vario-Power Jet pipe Ref 1
• 44 Dirt blaster Ref 1
• 1 WB 100 washing brush (2.643-236.0) Ref 1
• 2 Dirt blaster 031 St - CEM 14,5MPa (4.764-281.0) Ref 1
• 45 Brush Best Ref 2
• Short spare parts list Ref 5
• 46 Foam nozzle Ref 5
• 1 H 9 Q high pressure hose Quick Connect (2.641-721.0) Ref 999
• 43 VP 145 Vario Power Jet (packaged) (2.642-725.0) Ref 9500
• 44 DB 145 Dirt Blaster (packaged) (2.642-728.0) Ref 9500

Seal 10 X 2,8

Genuine Spare Part

An O-ring seal between pressure washer components forms a watertight seal  Pressure washers use rubber rings in the shape of the letter "O" that seal off connections between pipes, hoses, o...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 30 Motor Ref 8
• 21 Housing Ref 12

Water Hose Pipe Connector

Genuine Spare Part

What is the function of a hose connector? A pressure washer's hose connector's job is to create a safe and watertight connection between the high-pressure hose and any additional attachments, like...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• Short spare parts list Ref 9
• 21 Housing Ref 21

Spray Handgun

Genuine Spare Part

What is a water handgun trigger used for? The flow of water in a water gun or water pistol is controlled by a trigger. A stream of water is released when the trigger is pulled for cleaning tasks or water ...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 41 Hand trigger gun Ref 0
• Short spare parts list Ref 1

Pressure Spring

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 41 Hand trigger gun Ref 1
• 41 G 180 Q Trigger gun Quick Connect (2.642-889.0) Ref 1
• G 160 Q pistol Quick Connect (2.642-172.0) Ref 1
• Short spare parts list Ref 2

Screw Atf 4.1X22

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 10 Housing Ref 10
• 10 Housing Ref 10
• 21 Housing Ref 24

O Ring Seal Gasket

Genuine Spare Part

An O-ring seal between pressure washer components forms a watertight seal  Pressure washers use rubber rings in the shape of the letter "O" that seal off connections between pipes, hoses, o...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 42 High pressure hose Ref 2
• Short spare parts list Ref 4

Grooved Ring

Genuine Spare Part

How does a grooved ring work on a Karcher pressure washer? The grooved ring helps to create a seal between the pump head and the high-pressure outlet connection. It has grooves that interlock with corresp...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 22 Thrust guidance Ref 1

Motor Covering Cap

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 30 Motor Ref 7

Detergent Suction Pipe Hose

Genuine Spare Part

Boost Your Cleaning Power with the Karcher Pressure Washer Detergent Suction Pipe Hose spare part Over time, the suction pipe hose can become worn, damaged, or clogged due to frequent use and exposure to ...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 46 Foam nozzle Ref 2
• Short spare parts list Ref 10
• 21 Housing Ref 25

Extra Long High Pressure Hose Quick Connect 9M

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 42 High pressure hose Ref 1
• Short spare parts list Ref 3

Joint Ring Capacitor

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 50 Electric box Ref 2

O-Ring Seal 60 X 2 Nbr 70

Genuine Spare Part

O-ring seals create a watertight link between pressure washer parts  Pressure washers use O-ring seals to prevent water seepage and secure connections at joints where pipes, hoses, or fittings inters...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 22 Thrust guidance Ref 4

Screw M 8X55 Class 8.8

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 3

Spring

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 18
• 11 head pump wcm spare part (9.001-999.0) Ref 300

Fine Filter

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 23

Moulded Part Spring Kit

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 14
• 11 head pump wcm spare part (9.001-999.0) Ref 239

Valve Set

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 15
• 11 head pump wcm spare part (9.001-999.0) Ref 321

Vario Power Nozzle Lance

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• Short spare parts list Ref 13

Pressure Piston Hr

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 4

Support Ring

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 9
• 11 head pump wcm spare part (9.001-999.0) Ref 330

Dirt Blaster Rotary Nozzle

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 44 Dirt blaster Ref 2
• Short spare parts list Ref 6

Non Return Valve Cage Complete

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 17
• 11 head pump wcm spare part (9.001-999.0) Ref 246

High Pressure Quick Fitting Pipe Union

Genuine Spare Part

How does a pipe union work on a Karcher pressure washer? A pipe union on a Karcher pressure washer serves as a connection point between different sections of the water supply system. It’s made of tw...

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 1

Venturi Nozzle Injector D.1.45

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 19

Control Housing Chemical Valve

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 7
• 4 pressure piston HR (spare) (9.002-028.0) Ref 60

Dirt Blaster Nozzle Full Control

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• Short spare parts list Ref 14

Foam Jet Nozzle

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• Short spare parts list Ref 8

Joining Piece

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 16
• 11 head pump wcm spare part (9.001-999.0) Ref 251

On Off Switch Black

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 50 Electric box Ref 3

Piston Complete With Spring & Ring

Genuine Spare Part

Dimensions: Piston Length: 58mm Piston Diameter: 11mm Piston Washer Diameter: 27mm Spring Length: 35mm Spring Diameter: 24mm

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 22 Thrust guidance Ref 5

Spacer

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 22 Thrust guidance Ref 2

Syphon Tube Filter With Weight

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 21 Housing Ref 26

Ball Bearing

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 30 Motor Ref 3

Pressure Washer Rotating Rotary Wash Brush Wb120

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 45 Brush Best Ref 1
• Short spare parts list Ref 7

Screw

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 10 Housing Ref 12

Spacer Electric Box

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 50 Electric box Ref 5

Back Housing Compact

Genuine Spare Part

Suitable for select models of Karcher K4 COMPACT CAR RU (1.637-320.0)

• 10 Housing Ref 2