DANFOSS / EATON-S2 39 VARIABLE PUMP CW 3922-066

Specifications

Application Construction, Agriculture, Truck and Bus, Oil and Gas, and other mobile applications	Brand Danfoss – Hydraulics	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features Proven reliability in demanding applications\|Multiple control options\|Pro-FX ready	ICC Mobile - CC Piston Pumps	Language English	Net Pack Quantity Units EA	NMFC 125820	Product Width 8.70	Sub Brand None	Supplier Part Number 3922-066	Type Variable Displacement	Product Weight 128.00 lbs

Product Questions & Answers 2

Product Questions & Answers

What sort of applications is this pump typically used for?

Question by: Travis W on Nov 22, 2025, 4:39 PM

This Danfoss/Eaton S2 pump is well-suited for demanding mobile applications, including construction, agriculture, truck and bus, and oil and gas equipment.

Answer by: Customer Support on Nov 24, 2025, 6:54 AM

Got a hydrostatic transmission setup on a piece of construction equipment and trying to figure out if this pump would fit what we're doing. Is the closed circuit design on this one actually built for that kind of application?

Question by: Ross T on May 11, 2025, 2:01 PM

Closed circuit piston pumps are the standard choice for hydrostatic transmission systems, and that's exactly what this pump is set up for. The variable displacement gives you the flow control you need when loads shift, which matters a lot in construction equipment where conditions change constantly. The Series 2 platform has a solid track record in that kind of sustained, demanding use, so it's not just a general-purpose pump being stretched into a role it wasn't meant for.

Answer by: Customer Support on May 13, 2025, 8:20 AM