Piston Sprayer Pump Repair Seals O-Rings for Solo 425 425-101 435 473P Replace 6339964 4061257 0062115 0062991 0062139 0062140

Fast service

Received on time, well packaged, as advertised. Fit the target sprayer and reasonably easy to install. Stopped piston leak, which was needed. Being more careful to clean sprayer and leave a detergent residue for protection, and lubricate a bit more often as well. Plan to partially rotate parts annually to spread long-term gasket and ring wear due to slight eccentricity of piston assembly when operated. Seems to be a normal condition for manually operated sprayers. Not sure about motor units.

Didnt use the kit as the spray unit had other issues

Did not need all that was in the set, but sprayer was restored. Directions for repair would be nice.

Have had solo back pack sprayer over 20 years. Needed replacement part and worked perfectly. 1/2 price of big box store. Highly recommended.

Old seals were leaking everywhere. Took about 20 mins and had them all replaced and back together and that was my first time. Works perfect just like new!

Exactly what i needed to repair my 4 gallon solo 435 sprayer

Wrong part again plunger cap is too small , picture attached I need the larger seal on bottom of picture .