(888) 269-0172

VB7 Unloader Valve w/ Injector & Knob, 3650 PSI 8.0 GPM, PA

SKU 8.904-580.0 Category Tag
VB7 Unloader Valve with Injector & Knob - 8.904-580.0
  • Max PSI: 3650
  • Max GPM: 8.0
  • Max Temp: 195° F
  • 3/8″ MPT Inlet & Outlet
  • 2.1 mm Fixed Injector

PA

$112.99

Available on backorder

- +
Available On Backorder
Estimated restock date: 02/2026.

Part Number: 8.904-580.0
Cross Reference Part Number(s): 463670K, 89045800

This 8.904-580.0 VB7 pressure regulating unloader is manufactured by PA and designed for use on GP/Interpump 63 Series, Cat 4SF pumps, as well as other pressure washer pumps. It is rated for use at 3650 PSI, 8 GPM and 195 Degrees F. This pressure regulating valve does NOT have an internal bypass, so will need an external bypass hose installed and plumbed to the inlet side of the pump.

You may also like…

Holiday Hours

In observance of the upcoming holidays, our warehouses and customer service hours will be reduced.  As a result, order processing and shipping may be delayed during this time.

CHRISTMAS HOURS: December 24th: Open 7:30a-12:00p.  December 25th & 26th: Closed.
NEW YEAR’S HOURS: December 31st: Open 7:30a-12:00p. January 1st: Closed.

If you have any questions about orders you have already placed, or about placing a new order, please call our Online Customer Service department at (888) 269-0172 during our regular business hours. We appreciate your understanding and hope you have a wonderful holiday season.

Scroll to Top