Pressure Washer Pump Head Assy, Compatible with AR42940 AR Pump-SRMW2.2G26/ RMW2.2G24 Pump Head AR42518 AR43061 AR42940 Replacement Kit

Fit my 2700 psi Troy built pressure perfectly. Easy install, didn’t have to adjust relief valve.

Absolute perfect fit. My pressure washer broke while my husband was out of town, and I needed it. So I got this and replaced it myself. It was an exact replacement and went on in about 10 minutes. It also included the washers, which wasn't clear in the description. I purchased washers separately which I'll just keep as a backup.

I installed without issue and hooked the hose to the washer to look for leaks. Immediately found that the pressure release valve was faulty on this new unit. It leaked prior to engine being started. I removed the valve and used the relief valve from the old unit. This fixed that.Again, hooked up the hose and turned on the water to look for leaks. No leaks. Purged the air in the hose and started the engine. Pressure was good and seemed to work well until I released the gun trigger. I found that the engine would not remain running when the trigger was released. I found this to be a faulty or improperly set unloader valve. Again, I went back to the old unit and swapped out the unloader valves. Happy to say all is now running as it should be. We will see what happens when I put this in use for an extended time.

Lube up the 3 rubber washers before installing on the pump head!!! I didn't and had to reuse 2 of the 3 old ones because they got damaged when testing it after first installing it.There were numerous replacements available and this one seemed to most closely represent what I needed. Works as it should. Had to removed the soap feed nipple as the spring & ball behind it weren't installed correctly from the factory. Considering the work to remove and replace the pump, that was no big deal at all.

pressure was amazing, no leaks, but.the unloader valve kills my engine everytime I let go of the handle. did not come with any instructions how to test and set unloader. had the unit had any instructions would have saved me from taking time off work trying to get this unit ready to go.

The pump head fit my pressure washer perfectly. It was shipped promptly and in a very well protected package. After installing it on the pump assembly and trying it, it was exactly what I needed.I would definitely purchase again if I need.

Works and fits perfectly

OK, I read ALL the reviews about this product before buying so I knew there maybe issues with the unloader valve.First things first, I have a 2008 Troy bilt 2800 PSI 2.3 GPM pressure washer. This new pump fits perfectly. It mates right up without issue where the old pump was taken off. 5 stars for the fitment.The unloader valve…. Once the pump arrived I installed it and started the pressure washer, only to find the exact same issues as all the other reviews. I had to hold the pressure washer wand trigger down or the motor would shut off. I tried this several times to ensure this was the issue. I scoured the internet in search of ways to adjust/ tune the unloader valve, but nothing was very helpful.After tinkering with it I figured out the only thing that needed done was an adjustment of the set crew (Allen head screw W/ locknut) on the outer part of the unloader valve. (2nd picture)STEP 1: I loosened the locking nut on the Allen head set screw, then turned the set screw until it was almost completely removed, then tightened the lock nut. (This should fix the issue of the motor shutting off without the wand trigger being held down)STEP 2: start the pressure washer.STEP 3: with the pressure washer started, loosen the locking nut on the Allen head set screw and slowly start tightening the set screw. ( I turned the Allen head set screw 1 full revolution before moving to the next step)STEP 4: with the pressure washer still on grab the wand and depress the trigger. ( the PRESSURE ON THE WAND NOZZLE WILL BE LOW, but the issue of the motor turning off when letting go of the trigger should be fixed) Let go of the trigger and the pressure washer motor should stay on.STEP 5: REPEAT step 3 and 4 until you reach your desired pressure without the motor turning off.STEP 6: tighten the locking nut on the Allen head set screw.Hopefully this process will help for you. It worked for me.