Pressure Washer Pump 101

Read my independent  pressure washer pump buying tips & reviews to replace or repair your pump. And get your unit running again! And you can check out my #1 top recommended replacement pump: the Generac universal pump that works will all pressure washer brands & available on Amazon.

Best Pressure Washer Pump Comparison Chart

Most Popular

Highest Power

Generac Universal Horizontal Mount Pump on Amazon

Himore Universal Vertical Mount Pump on Amazon

AR North America Triplex Pump on Amazon

Quick Review of the Best Replacement Pumps

  • Horizontal Mount
  • Up to 3,000 PSI
  • Comes sealed with fluids 
  • Universal and works with all washer brands
  • Vertical Mount
  • Up to 2,700 PSI
  • Comes Sealed & Ready to use
  • Works with all brands
  • Horizontal Mount
  • Triplex Pump
  • Up to 4,000 PSI & 3 GPM
  • Stainless Steel Plunger Rods
  • Heavy Duty Construction
  • Price  

    Check today's price on Amazon 

    Check today's price on Amazon

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    Best Pressure Washer Pump Comparison Chart

    1. Quick Replacement Pump Review:

    Most Popular

    Generac Universal Horizontal Pump on Amazon

    • Horizontal Mount
    • Up to 3,000 PSI
    • Comes sealed with fluids
    • Universal & works with all washer brands

    Himore Universal Vertical Mount Pump on Amazon

    • Vertical Mount
    • Up to 2,700 PSI
    • Comes sealed & ready to use
    • Works with all brands

    AR North America Triplex Pump on Amazon

    • Horizontal Mount
    • Triplex Pump
    • Up to 4,000 PSI & 3 GPM
    • Stainless Steel Plunger Rods
    • Heavy Duty Construction

    2. Price

    Three Main Types of Pressure Washer Pumps

    As you know, your pump is the beating heart of your pressure washer. It works hard to create the pressure in your water - which gives you cleaning power. So let's quickly review the 3 main types on the market:

    Wobble pumps are used on the popular entry level pressure washers - which are typically electric  pressure washers.  Wobble pumps are economically built and I want to let you know that they are not replaceable.  If you have a pressure washer with a wobble pump that breaks down, you'll have to replace your entire pressure washer. These pumps are generally designed to last about 300 working hours.  

    Then there are axial cam pumps. Axial cam pumps are more reliable & powerful than wobble pumps. And they are most often seen on gas  pressure washers for homeowners. Axial cam pumps have larger bearings and oil reservoirs so they can run harder and longer. On average, axial cam pumps last around 600-700 hours before needing repairs or servicing.

    Triplex pumps are heavy duty pumps that are preferred by professionals. You'll find these on the higher end gas pressure washers. They are built to last longer than axial pumps, providing higher PSI levels, but they have a slightly higher price tag.  And they're installed on gas pressure washer units that are heavier & have more powerful PSI and GPM.

    My important buying tip: If you're replacing your pressure washer pump, make sure you match your existing specs, with your new pump.  You'll want to match up the PSI  (Pounds per Square Inch), GPM (Gallons per Minute) ratings - as well as the mount type:  horizontal versus vertical. You don't have to choose the same brand name, when you're replacing your pressure washer pump, but you do  need to match the specs.

    Here's my highly recommended replacement pumps - and why I recommend them:

    This horizontal Generac pump is a universal fit - so it will work with any pressure washer brand or engine up to 3,000 PSI with a horizontal mount.

    When you compare quality & price, you just can't beat this Generac pump.

    It's shipped to you completely sealed - and ready to be installed next to your engine. I love that it comes completely sealed & with proper fluids. No leaks. Extra easy & fast installation for you. And Generac consistently produces quality pressure washer pumps. You can read other customer reviews on Amazon.com.

    This Himore Universal vertical mount pump, available on Amazon, is my top choice if you need a vertical mount replacement pump.

    This vertical mount pump with 7/8" shaft fits any model or brand of pressure washer with a maximum of 2700 PSI and 2.4 GPM.

    And this Himore Universal Vertical Pump will come to you filled with pump oil, sealed and ready to be put onto your washer. No annoying leaks or refilling. Super easy installation so you won't waste time getting your unit up & running again. 

    And it's very economically priced. You can pick it up for less than $100! You can check this item at Amazon.com's price.

    And this AR North America Triplex pump is my #1 Choice when you need a replacement triplex  pump.

     I love the construction: one piece that's made with a special alloy aluminum and bronze base. It's oversized to give you the maximum strength & longest life.

    It works  great for gas pressure washer units up to 4,000 PSI and 3 GPM. And it features a 3/8" quick connect - so hooking it up only take a few minutes. You can check this item at Amazon.com's price.

    Maintenance

    And don't forget that proper maintenance is critical for getting the most out of your pump - and protecting your investment!

    Most gas pressure washer owners manual state that you should check your pump oil level often.  I think it's best to check your pump oil level before you start the engine - each time. And it's a good idea to completely change the oil every spring.

    Check your owners manual for more maintenance instructions for your unit!

    Questions? Contact Me

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    Best Replacement Pumps Comparison Chart Here!