This is a genuine item that is specially designed for use with Karcher pressure washers. It is supplied by the original equipment manufacturer. The oil helps to lubricate internal components of the pump to ensure it runs properly. Check the oil level regularly. Oil level should always be between the “FULL” and “ADD” level marks on the dipstick. Be sure the machine is level when checking the oil level. This will prevent them from wearing out. Refer to the owners manual of your model for the correct application of this oil. This synthetic 15W40 oil is sold in a single 1-liter container.
Engine Oil 1l 6.288-050.0
OEM part for: Karcher
Part Number: 6.288-050.0
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Compatibility
This Engine Oil 1l will fit the following 288 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Karcher
Show More Compatible ModelsThis item works with the following types of products:
- Pressure Washer Parts
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
No pressure
Tool Type
Pressure Washer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench
https://www.youtube.com/watch?v=SAhiUyk3TIk
Pressure washer pressure pulsing very fast with high pressure
Tool Type
Pressure Washer
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
2. Disassembled pump. No oil in wobble plate housing - only some water. (Probably piston seal?)
3. Cleaned housings, reused parts with carb cleaner. Added 15-40w oil. Reassembled & installed.
4. Works better than when I bought it, (was rebuilt unit.)
5. I found seals a little tricky to install as they are flared out & you'll probably try to use a screwdriver to install - careful, easy to damage seal.
6.Also, check the spill valve before you remove pump - it can cause erratic (as well as low) pressure.
Pressure washer lost pressure
Tool Type
Pressure Washer
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
It now runs like new.
I found the instructional video a great help and couldn't have done it in the short time it took.
Sprayer had no power
Tool Type
Pressure Washer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Wrench Set
https://www.youtube.com/watch?v=Qmrhgq22ASI
https://www.youtube.com/watch?v=q2c2uUlP13s
Karcher G 2650 HH pressure washer leaking water between the two bronze plates (piston guidance and cylinder head) on the pump. Pressure washer was also pulsating.
Tool Type
Pressure Washer
Difficulty
Medium
Time
1-2 hours
Tools Used
Socket set
2 Remove the bolts attaching the pump to the engine.
3 Slide the pump off the keyed engine shaft.
4 Place the pump upright and remove the cylinder head bolts.
5 Separate the two bronze plates (piston guidance and cylinder head)
6 I replaced the three "grooved rings" and the three oil seals. One of the "grooved rings" was obviously damaged and is presumably the cause of the water leaking. I thought this was the most difficult part of the job. The seals are pretty tight and putting the new ones in also requires patience. Removing the oil seals was assisted by a small weep hole on the back side of the piston guidance plate. I poked a small nail thru these weep holes that helped pop-out the oil seals. The new oil seals went in fairly easily. The "grooved rings" were easy to remove but difficult to install the new ones. Had to squeeze the edges to get the seals in which took some effort.
7 I changed the pump oil. The old oil had a milky appearance which I assume is due to some water mixing. Be sure to hold down the wobble (swash) plate as you tip the pump casing to drain the oil. There are ball bearings under the wobble (swash) plate that might dislodge from its retainer plate. The new oil (Karcher 10-40) was clear and looked like normal engine oil.
8 Reassemble the two bronze plates and place them on the pump casing. Note that pressure springs provide resistance and so you have to press the reassembled plates pretty hard as you reinsert the cylinder head bolts. Tighten the bolts so the oil doesn't leak out during reassembly.
9 Slide the reassembled pump on to the keyed engine shaft and tighten the pump mounting bolts. Snug up the cylinder head bolts. I put some grease on the engine shaft first.
10 The repair was successful. No leaks and no pressure pulsations. (Note that I had replaced the overload valve previously which had no effect on the pressure pulsations). In retrospect I would also replace the large o-ring between the pump casing and the piston guidance plate.
Pressure washer (Model 2650HH) was spewing out water between halves of valve housing
Tool Type
Pressure Washer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Adjustable Wrench, torx #30
2) worked at removing the Actuation Housing. I realized that the key was probably rusted, and with some lubricant removed the housing.
3) Had to get Karcher USA to email me the owners manual and parts lists. (very timely/responsive).
4) three different orders placed, after realizing parts needed replaced.
5) Did not understand when replacing shaft seals (pt no 6.365.393.0) if the groove was to be oriented up or down.
6) Same thing for groove ring (pt no 6.365.394.0)
7) Assembled with new parts, but water still spews out between the 2 housing halves.
8) Water mixed with oil is still present. I will need to disassemble, clean, and consider other part replacement. The PW worked fine with wand activation at the startup, but the water side seems to be leaking into the oil reservoir and forcing oil out. I was surprised to see behind the swash plate (wobble plate). May have to disassemble the to place the seal ring (pt no 7.367-018.0).
No Water Pressure.
Tool Type
Pressure Washer
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Air Compressor.
Parts Used
2. I knew I screwed up so I got online, While I was looking for disassembly information, I ran across a list of items to check before disassembling the pump. #1 on the list was use a hose larger than 1/2" in diameter (yes, I was using a half inch hose). And #2 Check the nozzle, barrel and water gun.
4. So I reassembled the pump adding 4 oz of oil.
5. Reconnected it to the engine.
5. Replaced the hose.No joy.
6. Removed the nozzle from the barrel and removed the barrel from the gun assembly.
7. Blew 120 pounds of air pressure through the nozzle, then the gun barrel and then through gun assembly. Joy! It finally started working.
Lost water pressure
Tool Type
Pressure Washer
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Wrench Set
removed pump; disassembled to identify parts that needed to be replaced;
ordered parts and pump oil. cleaned all the pieces of the pump and readied them foe assembly.
received ordered parts; completed reassembly; machine works as it is supposed to.
Pump did did not provide consistant pressure. It pulsed'
Tool Type
Pressure Washer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver
Viewed repair of problem via You Tube
Ordered parts.
Repaired as per You Tube video.
Disassembled pump.
Removed all internal parts
Cleaned pump castings
Replaced parts
Replaced pump oil
Reassembled
Success
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All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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