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DANFOSS / EATON BK PLATE ASSY

Description & Features

Designed as a replacement or service component for piston pump assemblies, the Danfoss / Eaton Bk Plate Assy is a genuine Eaton Char-Lynn accessory available under the Danfoss Power Solutions brand. Back plate assemblies serve a critical structural and sealing function within piston pump configurations, providing a secure rear closure that maintains internal pressure integrity during operation.

This component is available in all configurations and sizes, making it suitable for a range of piston pump applications across hydraulic systems in mobile and industrial equipment. Sourced directly from the manufacturer, it is packaged and sold as a single unit.

SKU: 70421-318

Supplier Part Number (MPN): 70421-318

Specifications

nmfc 125820	Product Type Back Plate Assembly	Segment Code B	Suitable For Use With Medium-Duty Pressure or Pressure Flow Compensated Piston Pumps

Product Questions & Answers (1)

Question by: Glen H on Nov 12, 2025, 8:40 PM

part number 70421-318, is that the back plate assembly for the piston pump or just one piece of it?

Answer by: Customer Support on Nov 14, 2025, 8:35 PM

That part number covers the full back plate assembly. It ships as a complete unit, so you're getting everything that makes up the BK plate assy in one package. Sold individually, one assembly per unit.