Predator 4,400 PSI 4.2 GPM Pressure Washer - How to and Review 

We had one at a salvage yard I worked at. It performed well and didn't seem or feel cheap. We would clean everything from parts, to loaders, to concrete with it. I'm thinking about buying one for me now.

It was a very good & informative video as I have been looking into purchasing one of the predator series PRESSURE WASHERS. Just a helpful FYI regarding changing the pressure using the unloader valve. The pressure is already set internally at the factory. Adjusting the unloader valve can decrease the lifespan of the pump. The correct way to adjust the pressure is by using different size nozzles to decrease, or raise the pressure. What I mean by that is the orifice in which the water goes rather than the various nozzle spray patterns of 15° or 30° or 45°. I'm referring to the actual small hole inside, the steel nozzle. By using A set of larger hole diameter nozzles will cause a dropping pressure to enable more pressure sensitive jobs to be accomplished safely well also increasing the lifespan of the pump. An easy way to put this into layman's terms is a pump creates flow while a restriction creates pressure. Since your pump is a direct drive set up the pump turns the exact same amount of RPMs as your motor. this is also what's known as a fixed displacement pump rather than a belt, driven variable speed commercial, PRESSURE WASHER. Unfortunately, with every PRESSURE WASHER set up the pump is always the Achilles heel so your motor will outlast the next three pumps you put on it once this one goes overtime. If you're able to stay on that trigger and not let it sit idle for more than a minute without a trigger pull? That will also greatly increase the lifespan of the pump. Using synthetic pump oil is also advisable but not a must. I'll have to check back and look for your video on updates. Thanks for the review. Peace

Just got one 5 minutes ago appreciate the video helps a lot

I'm starting a business for myself. I've always been leary buying harbor freight anything. From what I've been told by a few people that pressure wash commercially this is a great machine to start with.

You are a life saver bro!

I bought one about two months ago. I broke the pull start soon off and bought a pressure shutoff valve now I usually it only once and run it until Im done. Regularly change the oil and keep it filled with gas. Best investment ever.

Great Vid!! Thanks Broski!!!

Finally and awesome video you really can’t beat these specs for the price point thanks for the great vid

Thank you sir.. I just got one because of your review... Lol and the 20% no exclusions coupon..👍 thanks again

Would u recommend it for hydro jetting a sewer line with the rite attachments ?

I put Fully synthetic oil on both the pump and the engine. 10w50 pump & 5w 30 engine Its a beast, im going to really look after mine.. Only thing is the garden hose connection doesnt come with a quick connect fitting. Il go and change that at a shop

Just bought this unit and detailed 4 vehicles. Very nice and has great pressure.

what brand pump oil did you end up going with? i think i just bought a cheap jug of delo from autozone for like 20 buicks

Can you add soap anywhere in the pressure washer? Looking for one that does the pressure washing with some soap

Is it still running idk if I show get this 1 or the dewalt 4000 psi 4mpg which is a better power washer ?

Great content!! 🙂 If you had to purchase a new pressure washer today - would you go with another brand? Also, how did you like the Super Tech oil used in the engine?

Any update on the washer ? I purchased the 2 year extra no haggle warranty so we can take it back as this only has a 90 warranty

How high does the oil have to go on the pump. I’m trying to change it and need some pointers 😢

Does anyone know if this model uses 3/8" line? If not what size is the ID on the pressure line. Thanks

Im struggling to find the attachment needed to hook my garden hose (water supply) to the machine. Can anyone help me with what attachment i need? Thanks i have this exact pressure wash.

Thanks for sharing. Do you know how to bypass it? I just bought one, but I don't know how to do it.

Colorado Springs Nice! Only Question I have ok 2.? What do you use it for and how many Hrs. per day dose it run?

What would happen if my water supply can only provide at most 1.5 to 2 GPM? Would that cause an airlock on the pump and make the pressure washer not work?

Do you need a water tank to go along with this pressure washing machine ? Or do you just use the house’s spigot?

I have a few year old husqvarna that starts on half a pull and auto adjusts when you pull the trigger

Is the pressure washer still working good?

How do you decrease the gpm - I may need to adjust for different homes due to the water source not being able to put out 4 .2 gallons per minute. Or is a house putting out 4 gpm enough?. Nevertheless, some homes I wash may not even pay out 4 gpm and I don't have means to use a buffer tank , and therefore need to know how to adjust the gpm on this machine.

Hey I bought this machine, and looking to buy 15w-40 it says it’s for Diesel engine oil. Kinda confused because it’s under pump and not engine, don’t want to put somethings that’s meant for diesel in it.

Is it still going strong?

great review

hows it holding up?

How did this hold up for you?

Can you use a buffer tank for this machine

I got a Simpson for 699.00 same 4400 psi. So I decided to order it instead of Harbor freight on this purchase

So is it still working for you?

Can you use this with a tank or does it have to be connected directly with a hose?

Thinking of getting one what you think about it after having it for a while?

How did it hold up? Update please

Any updates on this pressure washer? How is it after a couple of years.

Can you do a video draining the gasoline for storage and how to get every last drop out?

PLEASE RESPOND IF YOU CAN . I BOUGHT ONE AND WHEN I HOLD THE TRIGGER IT COME OUT REALLY STRONG. but then the pressure weakens after 5 seconds and it sounds bad. help pls

Great review. I have two questions..1)Is the unloader built into the pump (as in all one piece)? 2) Can you tell if there's a way to hookup a bypass tank if you wanted to? Thank you.

I jus bought the same but did not touch the water pump oil only changed the tip as shown, did everything else ok Started with surface cleaner then decided to change to the gun, but it will not start again, the cord turns hard after the second pull and kind of jams Any idea what I did wrong?

You sound like Patrick Mahomes lol! NIce vid

If you don't use a 3/4"garden hose on these larger machines you will not get enough water flow into pump. You will have cavitation and damage pump.

Nice video . but when starting the Pressure washer hold the lance in the other hand with the pressere washer gun / lance open ...

It's been 4 years now. How's it holding up?

Do Is the pump take any kind of special oil Do it used the same oil That the engine use?

I bought one. after hooking up and starting it. It keeps shutting down after one minute. HELP.

never change tips while running. i learned the hard way. about lost finger

Do you ever run into a situation where the house water service doesn't produce 4.2 Gal. a minute?

What kind of oil does it use ?

Can I just use gas? If im going to use it daily

Any gas with no ethanol you should be fine with no stabilizer, they sell 90 octane ethanol free almost everywhere around us

What are the two different types of oils

Still working well?

Any up dates on the powerwasher... thks

Have you had any issues with it so far?

So there's nothing really wrong with those motors, I've built a few 212s and those things even revving to 8000rpm hold up extremely well even with the stock crank, rod and pistons my main concern with something like that would be the pump itself breaking, and as for the carbonator it'll run fine in the mountains since I'm from Co springs, the only time I've had to replace the crab is when i wanted to put e85 in it

How’s the pressure washer holding up???

Home Depot has a Ridgid 18 inch Surface Cleaner that will work great with that pressure washer. It will makes short work of cleaning your driveway.

Any chance you can test the psi with a gauge?

What pump oil did you use? I'm having a hard time finding non detergent 15w40 pump oil

How much fuel stabilizer should I use

Is it still holding up?

Does it still work and all?

Does it do good with running a business for house cleaning and concrete maybe roofing

Is the pressure washer still working?

How much?

You give people too much credit😂 “I think they’re smart enough to know.”

I bought one but it does not have the manual I use it daily to wash cars when it is advisable to change the oil I do not want to damage it

For the price point I'm curious why you didn't go with a dewalt or simpson of the same specs

for anyone thinking about buying this thing, there is a bit of a learning curve. I always have problems with starting mine back up after shutting it down. You have to flush all the air out of the pump. If you don't have a hose with an on/off valve on it it's a pain in the ass don't even bother. I luckily have nice hoses that have valves, because I pressure wash for a living, but it takes some getting used to, and has been costing me some time and ultimately money. The power is amazing, it does a great job cleaning, but I probably won't be outfitting all of my crews with these like I had originally hoped to do when I purchased the first one.

Absolutely use the pump saver...

I like the predator 4400 PSI/4.2 GPM pressure washer but unfortunately the specs on the box are incorrect. The pump is only a 3.5 GPM pump so don’t know how anyone can get 4.2 GPM out of a 3.5 GPM pump.

If the thing sits around for most of the year and for home use I would recommend electric. Why waste time with something like this? I know the more powerful electric units cost more bit they will lay a lifetime. My opinion as a pressure cleaning business owner.. 😃👍 I have Karcher k7 for at home..I don't want the noise. I also build my own units for my business. Never buy ready made.

I'm pretty shocked they sell a pressure washer with that4.2 GPM at a hardware store. Mostly because it's not something that works for regular owners because the rate of flow on most home spigots is maxed out at 4 GPM. Without the correct flow, in my opinion, it's not good for the pump.

Theres not much videos on this.

This looks like the Benchmark brand they sell in Canada

Most pressure washers work well new BUT You want quality pumps like CAT because they have a MUCH longer lasting duty cycle You get what you pay for

Anyone have a problem Getting it to start ? Seems like It doesn’t want to start the right way Definitely not first pull

For a home owner, that is ok. It’s a direct drive so if you use it a lot, you will be breaking keys. Specially with it being a bigger engine. The friction of metal on metal when used for long periods of time damages the key that connects the drive shaft to the pump. So you will have down time placing a new key. Also, high psi is not good for washing a house, new masonry, or vehicles. The chemical cleaners you will be using should do the job. The pressure washer should be used to rinse with high water volume and low psi. Also 4 GPM will not pull off of some homes. specially if you have a well. It could burn up your well pump. If you have city water with low water pressure. You could burn up your pressure washer pump.

Does someone that owns this have a contact number if I have any other question??

Ooooooorrrr you can change it yourself likearealman 👍🏼

So this does not come with pump oil ??

Trust me that's not 4400 psi. Maybe at burst, but continuous flow 3200 psi.

I could go to home Depot and Lowe's and pick up an equivalent from an actual name brand for $799

Dont tighten the hell out of the connections. Just enough

Harbor freight is quick to void their warranty for the slightest thing. Buyer beware.

No longer a bargain because it now cost $1100

You can get the Honda one as of today for less than 700

Just gets oxy gas at your local station

Wow I just watched this whole thing for you to not show where to put the detergent

Its not a Honda. You check it.

Farm and fleet has a better unit, Lowes has better unit both 850.

He's yummy!

please be advised that the word "boughten" doesnt exist👍

No reason to use a 0 degree

I doubt very much if you are actually getting 4400 psi or 4gpm out of that pressure washer. If I had to guess thats more around 3200psi and 2.5 gpm just sayin.. But as long as it makes ya happy.

All of these pressure washers, are actually no where near the pressure they claim.. it’s not just harbor freight,, it’s all of these in this class... the truth is you are lucky to get 2900 psi... you have to concern yourself with the max torque rpm ratios.. check to see the pumps rpm... once you exceed the pumps rpm you lose pressure