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Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055

  • Part #:
    517931
  • Manufacturer Part #:
    4503-0055
Our Price: $133.95
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Overview of Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055

Demand switch models operate only when liquid flow is required. Pump and motor stop instantly when discharge is closed. Diaphragm design eliminates
troublesome shaft seal. Pump can be run dry without damage. Ball bearing drive assures longer pump life. Excellent self-priming capability. Santoprene
diaphragms and viton valves are standard. Maximum temperature of pumped liquid 130°F (55°C). Permanent magnet motor and longer life brushes.

  • Ready For Round-up®
  • Each pump now has an internal fan which cools the pump during operation by up to 50%.
  • Upgraded Pressure Switch for longer life.
  • Motor windings have been increased to help dissipate heat
  • All models are now fuse protected
  • 3.8 Gallon Per Minute
  • 45 PSI max Pressure
  • 11 AMP draw
  • Replacement pump for 25 Gallon 3.8GPM Deluxe sprayer (DK# 25-7925)

Specs for Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055

Type Sprayer Pump
Units Each
Weight 5.40 lbs

Alternate/OEM Part Number(s):

45030055, 5275088

UPC Code:

733029101860
Specs for Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055
Type Sprayer Pump
Units Each
Weight 5.40 lbs
Fitment for Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055

Part 517931 fits the following machines

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pump pressures then falls back to 15 lbs ?
A shopper on Feb 24, 2017
BEST ANSWER: Maybe try briefly opening bypass valve to relieve air lock, also confirm tote cover is tight
Instructions and Manuals for Moose 3.8 GPM High Flo Sprayer Pump - 4503-0055