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DANFOSS / EATON CESSNA INNER AND OUTER RING ASSY

Description & Features

Designed for use in low-speed gerotor gear applications, the Danfoss / Eaton Cessna Inner and Outer Ring Assembly is a genuine Danfoss Power Solutions spare part intended to restore or maintain the performance of compatible hydraulic motors and pumps. The inner and outer ring set forms the core displacement element of a gerotor assembly, making it a critical component when servicing worn or damaged units.

Available in a variety of configurations and sizes, this assembly is suited for maintenance and rebuild applications across the Danfoss and Eaton Cessna product range. Sourcing a matched ring assembly helps ensure proper fit and dimensional consistency during service work.

SKU: 9900686-001

Supplier Part Number (MPN): 9900686-001

Specifications

Application Other	Brand Danfoss – Hydraulics	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features Available in a variety of configurations and sizes	ICC Low-Speed G/G Accessories	Language English	Sub Brand None	Supplier Part Number 9900686-001	Product Weight 1.00 lbs

Product Questions & Answers (1)

Question by: Dustin E on Jan 19, 2026, 2:44 PM

So, this is for a hydraulic motor or pump, right? Just making sure I'm understanding correctly.

Answer by: Customer Support on Jan 21, 2026, 6:43 AM

That's correct. The inner and outer ring assembly is a key part of the gerotor assembly inside hydraulic motors and pumps, especially those used in low-speed applications. It's the core that creates the displacement.