Briggs & Stratton Pressure Washer Pump Unloader Kit 187879GS

Worked really well.My Craftsman washer was having problem not power spraying unless I turn the gas engine to low-high-low-high then it will suddenly go. I read some solution to this problem on the net and concluded to replace this part. The installation was easy using silicon grease with it. The problem is the removal of the plastic cap and the copper part sticking to the inside. After endless tries I finally just broke the plastic cap, cleaning the inside putting silicon grease and everything worked as it should.The trick is I searched the craftsman part in Sears parts, got the local part number and search it that leads me to this. It is a generic briggs and stratton parts used by Craftsman washer with Honda engine. Then, they will sell it so expensive.

Great parts worked out perfectly!!

The Pros: The kit is comprehensive with the right stuff for the task at hand, fit well and works fine. The Cons: Why anybody in any state of mind thought intentionally using a threaded plastic retainer in a pot metal housing is beyond me, but they should be publicly flogged and used as an example of why blue ribbons for participation are bad. Other Unloader valves for other pumps seem to have a better design, most of them being brass or stainless steel. I cross-threaded this plastic plug three different times and then had to get creative nearly destroying the part. However, it works and I'll know what to expect if I ever need to perform the repair again. My only advice would be to find a thread chaser of the same size and thread pattern and chase the corroded threads of the pump housing before trying to thread in a piece of plastic.

I read ALL the reviews, and ordered this. Good price, fast delivery. Great success removing plastic plug with a 24mm 6 point socket. Got the brass sleeve out using a battery terminal spreader with relative ease. Installation was easy except for the plastic plug. After reading all the reviews, I tried first reusing the original plug, but stripped the first couple of threads. Then tried using the new plug with NO spring and silicon grease, and drove it about half way, backed it out, and replaced the spring. Tried using the new plug with the spring (carefully) and it worked. Glad to have my pressure washer working correctly (after 15 years of not working!)

I'm pretty handy with fixing stuff and this fixed the problem with my briggs & stratton pressure washer. However, it was very difficult to remove the old parts. The nylon nut would not remove using a socket, pliers or anything I tried. I ended up cutting off the mangled top with a hacksaw and very carefully chiseling out remaining plastic bits with a small screwdriver being very careful to not mess up the threads.I also had to use a drywall screw (as others have described) to the remove the last brass part.I cleaned up the insides hole in the pump unit with some fine sandpaper as the insides were all corroded (part of the reason it wasn't working in the first place). Then covered all of the new parts and the hole with liberal amounts of plumbers grease.The last difficult part was putting threading the new nylon nut back in. You have to compress the spring with the nut while attempting to line up the nut with the threads - this is also very difficult as you have to put pressure on the nut while trying to turn it. I did mess up the first row of threads trying to put it in - but I did eventually get it on correctly.So.... Bottom line is that the part worked for me and the pressure washer is now working correctly. However it was a real pain to replace the part. I think B&S did a poor job of engineering this washer. If it messes up again, I'll think hard about replacing the whole pressure washer... If your not handy with mechanical stuff I wouldn't think about trying to replace it.

You are very very likely to destroy the black nylon cap on the old unloader as you try to remove it. You will need this kit. My washer ran but gradually got stuck at low pressure only. This kit fixed that.

As others have mentioned, it's a bear to get the old parts out. (Phu's "Unloader valve replacement" review give some great tips.) Once everything is apart and the bore is cleaned up, installing this replacement kit is pretty straightforward.

I understood that it was to be a difficult replacement... but that plastic cap was impossible to tread into the pump with the strong spring behind it. It was a waste of $. It would seem that the manufacturer would have learned that the plastic cap was a terrible design an provided a better design. I gave up and bought a replacement pump.

All parts came as described, fit perfectly, and works!