Waterway Executive Wetend 2.5" intake 48/56 fr - Hot Tub Outfitters
Waterway Executive Wetend 2.5" intake 48/56 fr - Hot Tub Outfitters

WW 4.0hp 2.5 Intake Executive Wet end 56 Frame Waterways

Regular price
$139.95 CAD
Sale price
$139.95 CAD
Quantity must be 1 or more


Waterway 4hp Executive 56 Series complete wet end

The Waterway Executive 56 4hp complete wet end fits all 56 frame electric hot tub motors. As a complete assembled bolt on wet end it is an ideal replacement for older Waterway wet ends. This wet fits Waterway pumps with the model number PF-40-2N22.


  • 2.5" inch intake. (Measures 3-5/8" across threads outside)
  • 2" inch discharge.(Measures 3" across threads outside) 
  • Fits: 56 frame electric motors with a minimum 12.0 Amp rating on high speed
  • HP: 4.0, True rated
  • Some hot tub pumps have an additional barb fitting instead of a drain plug,
    this part # 672-4350 is sold separately 

Everything you need to replace your old Waterway pump wet end is included. Complete Waterway wet ends include the volute, seal assembly, impeller, wear ring, volute o-ring, suction cover, drain plug & suction cover screws. PLUS, we include 2 union o-ring.

Important: Please be aware that this wet end will only fit a 56 frame motor. Check your tag on your existing motor to verify frame & horsepower.

Find the Waterway label on your old pump and look for the model number, below is a list of Waterway pump model numbers that this wet end is a compatible replacement for.

Compatible replacement for models:

  • PF-40-2N22, Pump model # 3721621-13
  • PF-40-2N22C, Pump model # 3721621-13
  • PF-40-2N22M, Pump model # 3721621-13
  • PF-40-1N22, Pump model # 3711621-13
  • PF-40-1N22C, Pump model # 3711621-13
  • PF-40-1n22M, Pump model # 3711621-13