Medium
More than 2 hours
Piston Complete 4.553-172.0
OEM part for: Karcher
Part Number: 4.553-172.0
$83.85
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
Compatibility
This Piston Complete will fit the following 11 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.
Pistons spalled, corroded. Seals worn and damaged
Charles - June 27, 2018
Tool Type
Pressure Washer
Difficulty
Medium
Time
More than 2 hours
Tools Used
Socket set, Wrench Set
Pressure control was loading about every second and the spray was pulsating. Checked the unloader/pressure control, it seemed to be OK.
Disassembled to see the pistons and check valves. The top two pistons were spalled on the sides and corroded on the tip.The seals had been worn and damaged by the roughness of the pistons.
Had to file off the raised areas on the sides of the pistons so they would pass through the housing.
Used the long bolts and some spacers to gradually remove the piston guide housing.
The pistons and seals came out easily. The pistons installed easily. The seals were a little more difficult. You have to apply pressure with your thumb and work the lip in with a small screw driver.
Check the check valves by putting water above the valve and see if it leaks through. I blew through the check valves and they started seating good. Put it all back together, added oil, and it worked like new.
Disassembled to see the pistons and check valves. The top two pistons were spalled on the sides and corroded on the tip.The seals had been worn and damaged by the roughness of the pistons.
Had to file off the raised areas on the sides of the pistons so they would pass through the housing.
Used the long bolts and some spacers to gradually remove the piston guide housing.
The pistons and seals came out easily. The pistons installed easily. The seals were a little more difficult. You have to apply pressure with your thumb and work the lip in with a small screw driver.
Check the check valves by putting water above the valve and see if it leaks through. I blew through the check valves and they started seating good. Put it all back together, added oil, and it worked like new.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased 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.
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.
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