Pressure washers have become an easy-to-own tool for many homeowners. Their affordability allows you to quickly and efficiently clean decks, patios, siding, and more. These powerful washers help keep your homes and vehicles aesthetically appealing and clean. Maintaining them extends the life of your washer, but you will need to replace or repair things from time to time.
Pressure washer pumps are usually the part that will need attention. Their lifespan can be 400-800 hours. Your engine can last much longer. Replacing or repairing the pump can be a good solution. Depending on how often you use your pressure washer will determine how often you will be looking at replacing the pump. Replacing it is very affordable and will add years to the life of your pressure washer. Why buy a new pressure washer if all you need is a new pressure washer pump?
Before rushing out and buying the cheapest pressure washer pump you can find, know what you’re looking for. There are hundreds of pressure washer pumps to choose from. Make sure you get the right pump for your pressure washer.
The only way to match up the correct pressure washer pump part is with the model and serial number. These numbers will be on the pump and in your Owner’s Manual. Check it - Plain and simple.
Know whether you have a vertical or horizontal mounting pump. A vertical pump will mount under the motor. A horizontal pump will mount next to it. They are not interchangeable. Know which one you have. Also, note if you have an axial or triplex pump. Again, they aren’t interchangeable so know the difference. You’ll need to know the shaft diameter size and if it’s solid or hollow. These are the main areas to focus on to determine the pump you’ll need.
Find out the psi rating also. This is the amount of pressure per square inch. Most pressure washers run between 2000 and 3000psi. Know the horsepower of your engine as well.
Recommended Pumps:
Find the best pressure washer pump from some of our top picks. Choose the one that suits your needs the most.
Picture | Product | PSI | GPM | Rating | Price |
|---|---|---|---|---|---|
 | | 3200-3400 | 2.5 | 4.6/5 | $$ |
 | Triplex High Pressure Power Washer Pump ¾” Shaft fits Cat, General, AR | 3000 | 3.1 | 4.5/5 | $$$ |
 | | 3100 | 2.5 | 4.4/5 | $$ |
 | 2400 | 2.2 | 4.8/5 | $ | |
 | 3000 | 4.5 | 4.5/5 | $ | |
 | 3000 | 2.4 | 4.3/5 | $ | |
 | 2700 | 4.6 | 4.6/5 | $ | |
 | 3000 | 2.5 | 4.6/5 | $ |
Replace Or Repair Your Pressure Washer Pump
If only one part of your pressure washer pump goes, you may only need to replace that part. Seals and bolts are easy and inexpensive fixes. If a larger part goes, replacing the whole pump could be more practical. Many pressure washer pump repair kits cost as much as a new pump. Since replacing the whole pump is a simple task, you may be better off getting a new pump. And not all repairs should be done yourself. Check the Owner’s Manual before doing any repairs, especially if your pressure washer is still warranted. Fixing a part could void your warranty.
Some repairs are fairly simple. If your pressure washer demonstrates low pressure, you may have a worn-out nozzle. Replacing the nozzle will solve this problem. If your pressure washer is running rough it could indicate that the inlet water is too hot. Making sure you have enough air flow space for the pressure washer to circulate air will solve this problem. And remember that a hose left out in the sunshine has warm, if not hot water in it. Make sure to run only cold water into your pressure washer. If the pressure washer just shuts down during use, it could be out of fuel or oil. This could also happen on very hot or humid days. Letting the engine cool for at least 30 minutes can solve this problem.
If these simple solutions don’t work, you may have bigger issues. Read the Owner’s Manual to see if you should fix it yourself or not. A replacement may be what you need.
Sealed or Unsealed Pumps
Some pressure washer pumps come as a completely sealed unit, making repairs difficult if not impossible. Don’t give yourself a headache trying to open a sealed unit to find out where the problem is. You may not be able to get the parts because of the design of the sealed unit. A new pump will be your only solution.
Sealed units come completely self-contained. They are virtually maintenance free. This may sound like a great thing, but it can limit the life of your pump. Since the oil is sealed in, you can’t fill or change it. Once the oil runs out, you need a new pump. Even if some smaller parts break inside, you can’t just replace the part. But since the cost of many sealed units is so low, replacing them is cost effective.
Unsealed pressure washer pumps give you the ability to maintain the individual parts more efficiently. Regular maintenance is a must for these units. Though it’s not difficult to go through the checklist to make sure all the parts are working correctly and are in good shape, it is an extra step you’ll need to take in the care of your pressure washer. Developing a habit of looking at all the parts for wear and tear only takes a couple of minutes and should be done with each use. Check before and after each use. Even though a part looks good when you start a job, it may wear down just enough to need replacement when you’re done. If a part needs replacing, you can do it then so it’s ready for your next use.
Pressure Washer Pump Replacement
Once you’ve decided that replacing your pressure washer pump is the way to go, make sure you get what you’re looking for. There are many different pumps to fit your needs. Do you want something lightweight for easy handling on inclines? Do you want a specific brand? What about water usage? Do you want to get the job done with as little water as necessary (measured in gallons per minute, or GPM)? Decide what works best for you.
More power isn’t necessarily better. If your pressure washer is designed to handle a 3000psi, you don’t want to replace it with a pump that gives you more pressure than that. Too much pressure can cause more problems than solutions. The engine may not be able to handle the output and you could end up losing your engine. Keep in mind that your hose may not be able to handle the pressure either. It could burst from the high pressure. Though a burst hose is not as big of a problem as a blown engine, both will interfere with getting your task done. Stick to the specs.
Make sure you know what pressure washer pump parts come with your order. Some kits include shaft keys, some don’t. Some require you to purchase lubricant before installing. Though these are inexpensive and easily obtainable at your local hardware store, they turn a 10-minute job into an hour one. Read the reviews to see if customers recommend getting parts or extra items so you will be prepared when your replacement pump arrives. Or ask the salesperson at the store if you buy your pump there. If they don’t know, read the box. It’s better to have a few extra little items on hand if you need them rather than going out for them later.
Best Pressure Washer Pumps
Amazon has a wide variety of pressure washer pumps available. There are hundreds to choose from. To help simplify things, here’s a brief rundown on 8 of the better-rated pressure washer pumps. Most of them are axial pumps since those are the pumps used in most home pressure washers. All the models listed come with thermal relief valves, built-in chemical injectors, and are easy to install. Sealed and unsealed pumps are listed as Cons since it’s a personal preference.
New Pressure Washer Pump Kit - Replaces A14292 - Fits Honda Excell
This pump is generally liked by consumers. They found that it fits well with many models, was of good construction and affordable. The light weight of this pump allows for ease on inclines and hills. It has a horizontal fit.
Triplex High Pressure Power Washer Pump:
Triplex pumps are powerful pumps. They are mostly used for professional power washing jobs. The construction of this one is geared for hard work - Great for big jobs and lots of grime. They can have a lifespan of thousands of hours. Because of this, they can be costlier. They also require regular maintenance. Consumers were impressed by the materials used in this pump. No warranty was listed, but is available by request through the seller.
Pros:
- Ceramic plunger which helps resists pitting and wear.
- Forged brass manifold to provide corrosion resistance.
- Satisfactory rate 4.5.
Cons:
- Heavy - 18.4 pounds.
- No warranty listed.
- Pricey if you’re not a professional. Around $220.00 on Amazon.
- Not a sealed unit. Will require regular maintenance.
Simpson Cleaning 90029 Axial Cam Horizontal Pressure Washer Replacement Pump:
A great pump according to consumers. The PowerBoost Technology is designed to enhance cleaning performance. This can be a pro or con. With 3100psi you get a strong burst of pressure. Adding chemicals to that pressure can clean well and fast, but could also remove paint on some items. You may want to test this out on a few surfaces where losing a bit of paint won’t matter before using it on something that does. It’s lightweight for easy maneuvering. No warranty listed but available by request from the seller.
Pros:
- Direct drive vertical axial pump.
- SAE gas engine flange.
- Universal to fit most brands/models.
- Patent Pending PowerBoost Technology to enhance cleaning performance.
- Lightweight at 6.0 pounds.
- Satisfactory rate 4.5.
Cons:
- No warranty listed.
- A little pricey at around $140.00 on Amazon.
- Sealed unit with oil pump inside.
See Simpson Cleaning Horizontal Pressure Washer Replacement Pump...Click here
Annovi Reverberri (AR) Pressure Washer Pump with Thermal Relief Valve:
Annovi Reverberri is an Italian made brand. Highest rated pump by consumers but has a rear load specification. Keep this in mind. See if your power washer will support this. Good construction and very affordable. This pump has a vertical fit. Warranty details available upon request from the seller.
Pros:
- Lightweight at 6.1 pounds.
- Very affordable. $79 on Amazon.
- Satisfactory rate 4.8.
Cons:
- No warranty listed.
- A little pricey at around $140.00 on Amazon.
- Sealed unit with oil pump inside.
See Annovi Reverberri (AR) Pressure Washer Pump with Thermal Relief Valve...Click here
Universal 3000psi Pressure Washer Water Pump:
Consumers liked this pump - Easy to install, good construction, accurate description. A little heavier than other axial pumps, so you may want to consider that if you have slopes or hills you’ll need to carry the power washer over. Some consumers had to purchase additional parts for this unit, so read the description carefully. If you have questions, ask the seller. A little pricey for a sealed unit at $118. But good materials justify the cost. This pump has a horizontal fit.
Pros:
- Fits many makes and models.
- Aluminum head.
- One year warranty against manufacturer defects.
- Satisfactory rate 4.5.
Cons:
- A little heavy at 7.5 pounds.
- Does not include quick disconnect.
- Sealed unit with oil inside.
- A little pricey at $118.00 on Amazon.
See Universal 3000psi Pressure Washer Water Pump...Click here
Simpson Cleaning 90026 Axial Cam Vertical:
Good axial pump. Consumers found this pump of good construction and highly efficient. That is, once they got it working. A few comments said the pump needed ‘breaking in.’ Others noted that the pump could just stop for no reason. These could be just initial adjustments or weather conditions, but something to keep in mind.
Pros:
- Universal to fit most brands/models.
- SAE gas engine flange.
- Pistons made of Stainless steel for improved seal life.
- Dual oversized radial ball bearings for better wear and friction resistance.
- Anodized die cast aluminum crankcase.
- Fair price at around $100.00 on Amazon.
- Lightweight at 6.0 pounds.
- Satisfactory rate 4.3.
Cons:
- The pump has been known to occasionally fail for no reason.
- Reviews note that some priming may be needed on first use.
- Sealed unit.
Click here to see Simpson Cleaning 90026 Axial Cam Vertical...
New 2700psi Pressure Washer Water Pump:
Some reviewers for this pump stated that they were repeated buyers of this pump. Always a good sign. Good construction and performance. One note. Consumers did state regularly that spacers were needed to be purchased and used between the pump mounting arms and frame. Without the spacers, you could easily break a support arm. Since the price is low, only $66, these little additional parts aren’t considered a problem. This pump is a vertical fit.
Pros:
- Fits many brands.
- Very affordable at around $66.00 on Amazon.
- Lightweight at 6.4 pounds.
- Satisfactory rate 4.6.
Cons:
- Reviews state that spacers were needed between pump mounting arms and frame. Not included with pump.
- Not sealed. Will require regular maintenance.
Check New 2700psi Pressure Washer Water Pump...Click here
Annovi Reverberri 3000psi Pressure Washer Pump:
Consumers like this pump - Fits many models and good construction. On the heavier side at 15 pounds so keep that in mind if you have hills or slopes. It could be heavy to push and pull. Warranty available from seller. This pump has a horizontal fit.
Pros:
- High-quality Annovi Reverberi pump.
- Affordable at $95 on Amazon.
- Satisfactory rate 4.6.
Cons:
- Heavy at 15 pounds
- No warranty listed.
Click to see Annovi Reverberri 3000psi Pressure Washer Pump...
Some tips when purchasing Pressure Washer Pump replacements:
One thing that most of the product descriptions said was to compare the picture with your current model. If you have any questions as to whether a particular pump is correct or not, call. Do this. You want to make sure you get the right pressure washer pump replacement. You generally find out that the pump is bad when you go to use it or are already using it. The last thing you want when you’re in the middle of a job is the wrong replacement part. Keep in mind also that most places charge a restocking fee. You don’t want to end up with the wrong pump and then pay to have it put back on the shelf. Make sure the specs are correct and get the right pump the first time. You’ll save time and money, and your frustration level will be much lower.
When storing your pressure washer for the colder months, remember to store your pressure washer with plenty of lubricant and antifreeze. It only takes a tiny bit of water to crack the pump if it freezes. Lubricating bolts and joints will help avoid rust and keep them working smoothly come spring.
Your pressure washer didn’t cost you an outrageous amount of money. Still, it was a good chunk of change. When it breaks down, don’t replace the whole unit when you can easily solve the problem with a new pump. Pressure washer replacement pumps cost a fraction of the price you paid for the whole unit and can be installed easily. It will get you back to the task at hand quickly. Finishing the job will be easier and stress-free. Then you can sit back and enjoy the fresh, clean sparkle of your hard work.
