Fixed my 440i sprayer
The kit did not look like the pictures, the red spacer is actually white! All the parts are there tho and you do not need all of them. Which parts you require depends on the year of manufacture of your sprayer, best read the instructions provided. My 440i is a later model made after 2005. It took around me around 45mins to repack and rebuild the fluid section, the sprayer is holding around 3000-3100psi after using this kit. Repack kit was easy to install, this was my first time repacking a sprayer.