This pump lower eliminates downtime on the job. When you pump stops working simply unscrew the pump lower and swap out for this part. Inside is a pump repair kit, piston and cylinder. The Express Pump will last around 800 gallons while the standard version of the pump lower will last 1200 gallons. This works with the older units.
FITS GRACO'S 390, 395, 490, 495, 595 IN MODEL YEARS 2003-2014

This part replaces the pump in the machines below:

390 Stand

390 Hi Boy

395 Stand

395 LoBoy

395 HiBoy

490 Pro Stand

490 Pro LoBoy

490 Pro HiBoy

495 Pro Stand

495 Pro LoBoy

495 Pro HiBoy

595 Pro LoBoy

595 Pro HiBoy