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K44 Karcher Pressure Washer - Overview

Models starting with K44

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Spill Valve – Part Number: 4.591-040.0
No Longer Available
Spill Valve
★★★★★
★★★★★
(3)
Part #4.591-040.0
This spill valve is for pressure washers. Spill valve opens when water flowing through the pump gets too hot, releasing the hot water in exchange for cooler water.
Oil Sealing 12x20x4/6 – Part Number: 6.365-393.0
$6.76
In Stock
Oil Sealing 12x20x4/6
Part #6.365-393.0
This OEM Grooved Ring is a 12 x 20 x 4/6 rubber ring which can be installed with a screwdriver and wrench set. Installation is rated as "Medium" difficulty. It attaches in the cylinder head and is used to keep the oil in the pump from mixing with the water. If broken it will leak and must be replaced.
Suction Valve Complete – Part Number: 4.580-330.0
$11.43
In Stock
Suction Valve Complete
★★★★★
★★★★★
(1)
Part #4.580-330.0
Genuine Karcher replacement part, it is sold individually. This part along with the piston controls the flow of water through the pump assembly. This part has a tendency to wear out. It may be wise to keep a few extra on hand.
Grooved Ring – Part Number: 6.365-394.0
$7.63
In Stock
Grooved Ring
★★★★★
★★★★★
(1)
Part #6.365-394.0
Genuine Karcher replacement part, this item is sold individually. This part acts as a seal to keep the oil in the reservoir and the water in the pump form contaminating each other. It is installed on the piston.
Pressure Spring – Part Number: 5.332-391.0
$6.40
In Stock
Pressure Spring
Part #5.332-391.0
This is a high-quality pressure spring that is made for use with Karcher pressure washers. It is an authentic item that is supplied from the original manufacturer. The spring applies tension on the piston that helps to create pressure inside the cylinder. Over time it may wear out, get damaged or lost eventually requiring a replacement to maintain your pump. Refer to the owners manual and the diagrams of your model for the correct installation. Note, this pressure spring is made of durable metal and is sold as an individual item. To perform this repair you will need a screwdriver and a wrench set. Remove the cover and the cylinder head to gain access to the pressure spring.
Coupling Element 3/4-inch – Part Number: 9.154-009.0
$6.40
In Stock
Coupling Element 3/4-inch
Part #9.154-009.0
This is a Genuine Manufacturer Sourced replacement Garden Hose Connector designed for use with some Karcher Pressure Washers. This part is made out of Metal and it is Sold Individually. This part helps you connect garden house to the unit.
Grooved Ring – Part Number: 6.362-875.0
$6.63
Special Order
Grooved Ring
Part #6.362-875.0
This is a manufacturer sourced replacement part designed for use with Karcher pressure washers. This ring provides an air-tight seal for the cylinder head. Over time this ring will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. It is made out of rubber and it is sold individually. Replacing this item you would need hex key/allen wrench and pliers to replace this item.
Washer – Part Number: 5.115-721.0
$6.40
In Stock
Washer
Part #5.115-721.0
This is a Genuine OEM Authorized replacement part used on Karcher Pressure Washers. This part is made out of Rubber Material and it is Sold Individually. This Washer fits on top of Grooved Ring and provides a seal. You would need a Set of Wrenches and Screwdriver to get take off the Cover and take apart the Pump.
O-ring Seal 80,0 X 3,0 -nbr 7 – Part Number: 6.362-471.0
$6.40
In Stock
O-ring Seal 80,0 X 3,0 -nbr 7
Part #6.362-471.0
It is an OEM item which is made for Karcher pressure washers. This component provides an air-tight seal for the pump housing. Over time the material will wear out and it may begin to crack eventually requiring a replacement to prevent leaks. To ensure the correct installation of the new gasket, refer to the appropriate diagrams of your specific model. Note, it is made of a durable material and is sold as an individual component. You will need a socket set to take the pump housing apart in order to perform this repair.
Connection 3/4 – Part Number: 6.465-031.0
$12.59
In Stock
Connection 3/4
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★★★★★
(2)
Part #6.465-031.0
This is an authentic OEM part made by Karcher for use in pressure washers. The connection fits next to the filter and the cover on one side and the hose coupling on the other. It is made of plastic and will need replacing if it breaks. A screwdriver might be needed during the installation process. This part is available as an individual replacement.
Spare Part Set O-ring 5x -kae – Part Number: 2.880-990.0
$7.98
In Stock
Spare Part Set O-ring 5x -kae
Part #2.880-990.0
O-rings are flexible circles which are used to prevent leaks and maintain pressure. This part is an authentic OEM replacement ring used in Karcher pressure washers. These O-rings are used at the connection point between the machine and its hose. This set includes five (5) identical O-rings. Please note that the wand itself uses a separate set of O-rings, part # 2.640-729.0 O-Ring Seal Set. Multiple other sizes of O-ring are used in various other spots on these machines; see manual for part numbers and placements.
Grooved Ring – Part Number: 6.964-026.0
$6.63
On Order
Grooved Ring
Part #6.964-026.0
This grooved ring seal is an authentic OEM replacement part used in pressure washers. It is a rubber seal with a diameter of 0.8 inches. The ring seal is found in the motor housing, where it helps to maintain the correct pressure preventing the water from leaking out of the pump housing. It also prevents water from entering the housing and causing damage. Over time the seal may wear down, tear, or fall off leading to leakages and potential contamination. Inspect all the seals in your equipment as they tend to wear down at the same time and replace those that are no longer functioning well. Begin the repair by switching off the equipment. Remove the motor/pump housing and locate the faulty seal. Gently pry it off the cylinder head and discard it. Clean the mounting surface and press the new ring seal into the grooves until it is firmly in place. Reattach the housing to complete the repair. Each grooved ring seal is sold separately.

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Old house broke during move
3 of 6 people found this instruction helpful.
  • Howard from GRANBURY, TX
  • Really Easy
  • Less than 15 mins
Attached new hose.
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