DXPW3425 (Type 0) DeWALT Pressure Washer - Overview

Diagrams for DXPW3425

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Parts for the DXPW3425

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Set Screw – Part Number: 5140098-16
$82.97
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Set Screw
Part #5140098-16
Crankcase Cover Kit – Part Number: 5140142-70
No Longer Available
Crankcase Cover Kit
Part #5140142-70
Hardware Kit – Part Number: 5140112-52
No Longer Available
Hardware Kit
Part #5140112-52
Crankcase – Part Number: 5140117-40
No Longer Available
Crankcase
Part #5140117-40
Piston – Part Number: 5140117-39
$108.16
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Piston
Part #5140117-39
Retaining Ring – Part Number: 5140117-35
No Longer Available
Retaining Ring
Part #5140117-35
Oil Seal Kit – Part Number: 5140117-50
$73.39
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Oil Seal Kit
Part #5140117-50
Screw – Part Number: 5140114-78
$77.73
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Screw
Part #5140114-78
Connecting Rod – Part Number: 5140117-37
No Longer Available
Connecting Rod
Part #5140117-37
Screw – Part Number: 5140117-56
No Longer Available
Screw
Part #5140117-56
Handle Grip – Part Number: 5140109-33
$82.79
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Handle Grip
Part #5140109-33
Hardware Kit – Part Number: 5140095-89
$102.19
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Hardware Kit
Part #5140095-89
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Questions And Answers for DXPW3425

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Common Symptoms of the DXPW3425

How this model fails, and the parts that fix it.

Leaks water
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No or low pressure
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See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

Search repair tips from other customers using simple keywords like "replace", "fit", "remove", "inspect". DIY doesn't mean you have to do it alone!

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Pressure washer came up to pressure ,squeeze trigger, total pressure loss
6 of 9 people found this instruction helpful.
  • Stephan from MANSFIELD, OH
  • A Bit Difficult
  • 30 - 60 mins
  • Screw drivers, Socket set, Wrench set
This is on a dewalt pressure washer with A 8.7 12 pump and Honda motor. Removed brass housing taking really good notes of how seals were placed Into housing
This pump is a triplex pump. Removed 3 brass Allen head plugs to expose the 3 checks and the other 3 checks are at the bottom of other 3 ports where the 3 pistons go in.
Us ed a needle nose plies to remove checks..Removed seals from piston ports. I used a Oring lubricant to assemble THE NEW SEALS THAT GO IN FIRST WERE VERY VERY HARD TO INSTALL HAD TO PUSH THEM IN THEN SLOWLY WORKED AROUND THE EDGE OF SEAL SLOWLY WORKING DOWN INTO BORE OF HOUSING
THE rest of parts install went easy Bolted unit up,pulled starter rope to rotate pump an motor ok so far
Hooked up water started motor and cleaned items I had out to do. Hope info helps
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