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Original price $4,295.00 - Original price $4,295.00
Original price
$4,295.00 - $4,295.00
Current price $4,295.00



Extruded aluminum skid-mounted cold 8 GPM 4000 psi bandit pressure washer with a pressure-trapped blue spring unloader mounted remotely on an unloader block.


This unit offers a beefy base, a Honda IGX800 fuel-injected engine, and a Honda muffler. Psi offers an easy-to-access pump tensioner underneath the comet pump. The aluminum belt guard is assembled with heavy-duty bolts instead of rivets.


8 GPM 4000 psi comet banded belt extruded aluminum frame, high flow blue spring unloader remotely mounted on an unloader block to reduce stress on the manifold, gun/wand assembly with brass HPC quick connects, 50' grey high-pressure hose with HPC quick connects, 4 colored quick connect nozzles.


34" x 18" x 22" 230 lbs.


To order this unit, please add the cart and choose local pick up. We will ship to your door using Estes Express. We ship with great rates throughout the USA.




This unit will need a fuel tank, fuel hose, and fittings (1184, 2119) to connect the fuel hose (fh) to the tank. You can purchase an aluminum fuel tank or poly fuel tank online or locally. We offer the fuel hose (fh) by foot.


Please purchase a length of 3/8" (agy06) or 1/2" (agy08) yellow ag hose. We offer it on foot.


Purchase two barbs for the bypass hose. You need a hose barb (1174) or (1171) for the outlet of the unloader and a 4784 or 4796 for the tank. The barb at the tank and bulkhead is included in the pl-8-to or pl-8-ta kit.


Purchase a battery for this unit. You will receive a small, empty battery box and strap.


If you need a nozzle holder, purchase it separately. You will receive 4 loose quick-connect nozzles.


Purchase black soap nozzles (5422, 1776, 6641, 5287, 1720)


The unit arrives with the coupler on the outlet and plug on the inlet of the gun. We recommend switching the plug and coupler.


We strongly recommend that you purchase our pl-8-to or pl-8-ta kit for a tote or a horizontal leg tank which has everything you need to correctly plumb this unit. We recommend switching out the 1" barb to 1.5", upsizing the non-collapsible suction hose to 1.5" id, upsizing the filter to 80 mesh 1.5", and installing a 1.5" bulkhead, brass hose barb, and 1/2" bulkhead.


Increase the jump hose to the reel to a 1/2" high-pressure hose and use a 50' hose as the first length of hose on the reel. (Always strip all hose from the reel except the last single wrap to protect the crimp when in use.) Upsizing the hose IDs will allow you to shoot farther, increase the cleaning units and efficiency of your pressure washer as well, and move much faster when using your surface cleaner.

The pl-8-to or pl-8-ta kit has everything you need to plumb the pressure washer as well as connect to a reel including the 50' high-pressure hose.


Upsizing your hoses will prevent back-pressure to your pump, help your valves and high-pressure seals last longer, prevent your safety relief valve from spraying water, help your pump run at a cooler temperature, supply enough water to your pump using the 'double your supply hose id in relation to your inlet port' rule and keep your pump cooler leading to less downtime. Double-check your surface cleaner hose to ensure that it is 3/8" id instead of 1/4". 


Always use medium thread locks on your high-pressure fittings instead of Teflon tape. Teflon tape will end up in the pump valves or clog nozzles.


If using a chemical injector, install the injector only when in use and install it several feet downstream of the unloader to prevent back-siphoning into the unloader/pump manifold. Did you know you can use dual dual-port chemical injector to apply chemicals at an even stronger ratio? Try the gp100791. It has two barbs. Try one of our original slotted PVC filters (tf-di) with two barbs made especially for this dual-ported chemical injector.


We recommend a minimum of a 300-gallon water tank or IBC tote.


Add a high-temperature Hudson float valve (Hudson-ht) and Hudson float valve installation kit (Hudson-a) to prevent over-filling your water tank. The Hudson float valve will automatically stop the flow into your tank when installed properly in the headspace of your water supply tank.


Check out our plumbing diagram at the link below:





As with any pressure washer, do not adjust the unloader. The unloader is set at a spike pressure of 200 psi above the operating pressure of the pump and is meant to be left alone. If you need less pressure, change out the nozzles to a larger orifice and never smaller than what is called for using factory specifications using GPM and pressure. This unit requires a 10.0 orifice or larger nozzle.


Pair this unit with a 1/2" all-flow 17 GPM air diaphragm soft wash system for the most efficient cleaning rig. The 1/2" all-flow can be used to soft wash everything from the roof to a giant commercial building and the 8 GPM pressure washer can be used to rinse using either the new m5ds adjustable nozzle ($59 and awesome!) Or using a big 0050, 0060, or 2560 nozzle on a gun/wand assembly with low pressure.


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