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Fuel Primer 321 Series - Marine V2.1

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Fuel Primer 321 Series - Marine V2.1

The FP-321 Series Version 2.1 makes priming the fuel system of a diesel engine easier, faster, and safer than manually priming during routine filter changes. It pumps fuel into the lines to purge trapped air in the main feed line, primary filters, secondary filters, and engine. The bypass protects the system from pressurizing beyond the preset. Design in white for Marine applications.

Usually ships within 1-2 weeks.

Download Data Sheet Data Sheet

  • Protects delicate fuel systems with integral pressure relief valves that are factory set to deliver the proper fuel pressure
  • Easy installation
  • Easy to operate - Control handle points with the direction of flow
  • Momentary button with LED power indicator
  • Flow Rate: 4 GPM / 15 LPM
  • DC 12V or 24V
  • Ports: 1-1/16" x 12 UNF (straight o-ring boss)
  • Fuse (installer supplied): 15A
  • Maximum Amperage Draw: 8A / 12V, 4A / 24V
  • Base: Marine grade starboard
  • Preset: 22 psi or 15psi
  • White

Available In:

  • Left-to-Right or Right-to-Left Flow
  • Preset to 22 psi or 15 psi
No Spare Parts

12V, Left to Right Flow, 22 psi (25-2972-01-04) $967.94
12V, Right to Left Flow, 22 psi (25-2972-01-10) $967.94
24V, Left to Right Flow, 22 psi (25-2972-02-04) $967.94
24V, Right to Left Flow, 22 psi (25-2972-02-10) $967.94


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