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The PT4A centrifugal trash pump is a reliable dewatering tool for a variety of applications. The lightweight pump can handle up to 541 gpm (2050 l/m) and solids up to two inches (50 mm) and are ideal for general dewatering of excavations, flooded basements, manholes, utility vaults, mining work, swimming pools, lakes and barge holds or wherever there is unwanted water. With built-in contractor friendly features, this line of trash pumps has redefined the quality and durability standards of self-priming, centrifugal trash pumps.

UPDATE – we have rolled out this new website, but are working to get other details including pricing added to our site. In the mean time we welcome all phone calls for pricing. As of this writing we have this model in our physical stock and available for same day shipping for orders by Noon to avoid many of our online competitors delays and dependence on shipping from a backordered mfg (we can always ship this path like they do at the lower price also). 

Pumps (fuel & electric driven) upon delivery are non-returnable due to the nature of customer possibly running dry and doing damage.

Wacker Neuson PT4A Self Priming Trash Pump Brochure (click for pdf)

  • Durable Honda engines with low oil level shutdown offered for 2″, 3″, and 4″ pumps provides market leading performance and reliability.
  • Chrome cast iron impeller, ductile iron volute, and silicon-carbide mechanical seals designed for wear resistance and long-life with minimal maintenance.
  • Compact, lightweight design using high strength aluminum housing with easy access and large fill and drain plugs, provides extra years of trouble-free operation.
  • Tool conveniently attached to frame for loosening/tightening fasteners on covers and drain plugs provides quick and easy maintenance.


L x W x H29.7 x 21.3 x 23.6 in
L x W x H Shipping30.9 x 22.2 x 24.8 in
Diameter Suction and Discharge4 in
Operating weight187 lb
Shipping weight200 lb

Operating data

Discharge Head98 ft
Discharge capacity541 US gpm
Pressure42.4 psi
Suction height Lift26 ft
Solids diameter Max. Size2 in

Engine / Motor

Engine / Motor typeAir-Cooled, Single Cylinder
Engine / Motor manufacturerHonda GX390
Displacement23.7 in³
RPM / speed Operating3,500 rpm
Power Max. Rated11.7 hp
Power Rating SpecificationSAE J1349
Engine oil0.29 US qt
Fuel typeGasoline
Tank capacity Fuel1.6 US gal
Fuel consumption0.8 US gal/h
Runtime2 h