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Repair Parts Home  Lawn Equipment Parts  Karcher Parts  2.884-916.0 Pressure Check Valve Set

Pressure Check Valve Set

Part Number: 2.884-916.0
Karcher
Availability: Factory Backorder [ more info ]
Price: $21.62
Date Available: Unknown

*This part replaces obsolete part #: 4.580-311.0, 4.580-331.0, 2.884-872.0 and 4.580-371.0.

Product Information
Manufacturer: Karcher
Product Number: 2.884-916.0
Classification: Part
Weight: 0.02 lbs.
Shipping: Ships Worldwide
Description:
This part is a Retrofit Valve that will work on the older models as well as the newer models. Older units have shorter valves than the new pumps but you can change the length of the stem to adjust for the older units.
Compatibility

This part is compatible with the following machines:

Karcher
Expand the 44 compatible machines
Products Compatibility

This item works with the following types of products:

  • • Pressure Washer
Questions & Answers

I have 2400 PSI pressure washer that works fine with the first pull of the wand trigger, then I have to pull the wand, cycle the trigger, and replace the wand to get the high pressure to return, is this the correct part to replace, Is this a common problem or do I need the pump serviced?
rpl for model number k 2400 hh asked on 2019-02-21
Hello, Thank you for contacting us. I have researched the model you have provided and have found the part you are looking for is 2.884-916.0. Have a great day!
Repair Instructions: Submitted by Customers Like You
9 of 9 people found this instruction helpful
Tool Type:
Pressure Washer
Parts Used:
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Socket set
Check valves needed to be replaced due to wear and weak springs in existing checkvales
I removed the pressure washer from the motor housing and then disassembled the pressure washer to remove the existing check valves. I replaced them with the new ones I purchased, reassembled the pump, and then reattached the pump to the motor housing. There was nothing too difficult about the job, just time consuming getting all the parts back together.
The pressure washer is working, though I am getting some pulsing which may be due to a faulty relief valve on the pressure washer. I will look into this further, and may replace that as well.
The schematic for the pressure washer which I found on line was very helpful in getting all parts reassembled properly. I would definitely recommend having that handy when you work on the pump.
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2 of 3 people found this instruction helpful
Tool Type:
Pressure Washer
Parts Used:
Washer - 5.115-903.0
Pump Oil - 6.288-050.0
Unloader Valve - 4.591-040.0
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Easy
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set
Pressure washer lost pressure
I followed the instructional video for my model of pressure washer step by step and the repair went very easily. I removed the pump from the drive shaft and took it apart, removed all of the parts that needed to be replaced, cleaned the pump housing parts, put in the new parts, filled it with new pump oil, reassembled the pump and connected it to the power shaft.

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.
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2 of 3 people found this instruction helpful
Tool Type:
Pressure Washer
Parts Used:
Grooved Ring - 6.365-394.0
Pump Check Valve - 4.580-330.0
Pressure Spring - 5.332-391.0
Oil Sealing - 6.365-393.0
Pump Oil - 6.288-050.0
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Medium
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set
Pressure washer pressure pulsing very fast with high pressure
1. Purchased all most likely parts likely to cause problem: valves, seals & springs.
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.
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Tool Type:
Pressure Washer
Parts Used:
Pump Check Valve - 4.580-330.0
Pump Oil - 6.288-050.0
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver
Pump did did not provide consistant pressure. It pulsed'
Researched problem via internet.
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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Tool Type:
Pressure Washer
Parts Used:
Grooved Ring - 6.365-394.0
Oil Sealing - 6.365-393.0
Unloader Valve - 4.591-040.0
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Easy
Time Spent Repairing:
1-2 hours
Tools Used:
Socket set, Wrench Set
I had fluctuating pressure. It would run fine for several seconds that the pressure would drop significantly.
I rebuilt the pump with the parts you suggested. Be careful with Karcher pumps. If you replace the nozzles with standard big box store nozzles they can cause this surging. That is what I recently did. Make sure you have the correct capacity nozzles before you rebuild a pump.
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3 of 6 people found this instruction helpful
Tool Type:
Pressure Washer
Parts Used:
Unloader Assembly - 9.175-007.0
Pressure Check Valve Set - 2.884-916.0
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
, Allen Wrench
Replace 6 valve and 1 unloader
Remove 7 allen slotted plugs. Pull out 6 original valves and 1 original unloader. Install 7 new parts. Tighten the 7 allen wrench slotted plugs.
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Reviews
3.8
Average Rating (out of 5):
4 Reviews
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  • Great Company
    Parts were exactly what I needed and fast delivery.
    Guest - 25 days ago Verified Purchase
    Easy fix
    Ordered the part, come sooner than expected.
    Guest - April 21, 2020 Verified Purchase
    Pressure washer pressure relief valv.
    The pressure relief valve was received promptly. I am having a repair shop install it and it will be approx 10 days before it will be ready.
    Allen - July 24, 2019 Verified Purchase
    Could and should be better
    I have ordered parts from these folks before without incident. However, in my recent attempt to fix my pressure washer the experience was awful. First, I call tech service and was told we aren't techs and can't answer the question. Secondly, I received the wrong part twice. Found out eventually from Karcher that there were multiple models of pumps used on my pressure washer. There was no serial number break on the parts list. I advised a second person at ER that the drawing was wrong (Actually, there should be multiple drawings) but the person did not seem to care or perhaps did not understand. I eventually bought an after market pump. Cheaper and faster than getting the parts. The tech videos are very helpful. Just wish there was a knowledgeable person that answered the phone.
    Guest - May 22, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Karcher
    Product Number: 2.884-916.0
    Classification: Part
    Weight: 0.02 lbs.
    Shipping: Ships Worldwide
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