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.
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★★★★★
★★★★★
Piston Return Spring
Easy to replace, fit perfect.
Guest - October 24, 2019
Verified Purchase
★★★★★
★★★★★
Karcher Gas Power Washer Parts
Took apart the pump and found a broken spring. Looked up the parts on this site and placed my order. Arrived quickly and the pressure washer is back working again.
Randy - November 26, 2019
Verified Purchase
★★★★★
★★★★★
Easy repair, fast shipping.
Part was easy to replace and good quality.
Clint - April 5, 2021
Verified Purchase
★★★★★
★★★★★
Quick and easy
Love the videos
Guest - November 18, 2023
Verified Purchase
★★★★★
★★★★★
Pressure spring
It arrived in good time, but it was not the part I needed. I am keeping it for future use.
Guest - November 5, 2020
Verified Purchase
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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 r
... Read moreebuilt 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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Pump would only function a few seconds and go back to low pressure
1. Removed pump frame from casting that connects to gas motor.
2. Of the 3 pistons, two had popped the retainer clips off which releases the tension, and any function of the spring. One of the clips was damaged, the other was reusable.
3. Gear oil in the case was cloudy from water intrusion. Replaced the gear oil.
4.
... Read moreHad to purchase a piston to get a keeper/clip. One spring was slightly bent so I replaced it. On a unit more than 15 yrs old, I replaced rubber gasket even though old one was not leaking.
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Low pressure and pulsating hose when nozzle is not triggered.
Removed cover, two torx bolts, and removed the cover. Pulled unloader valve out with needle nose pliers. Cleaned the housing, coated the upper o-ring on the valve and installed it.
Removed pump from unit held on by 4 allen style bolts. Drained oil. Removed for pump bolts, the three pressure springs were exposed at this point. Replaced springs and new oil and assembled.
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
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_WW_3.gif "Part Location Diagram of 5.332-391.0 Karcher Pressure Spring")
_WW_3.gif "Part Location Diagram of 5.332-391.0 Karcher Pressure Spring")
