What pump to buy

I guess the cold weather took its toll on my AAA triplex pump. Looking for a replacement that’s reliable that won’t break the bank. Any ideas. Has to hook up to the same Honda GX390.

Pretty vague, are you looking to do a 4gpm/4000psi direct drive or upgrade to a reduction gearbox 5/2500?

Sorry thought I put 4gpm direct drive.

Honestly you may be able to find a used machine on Marketplace for less than a new pump.