Eaton A-Pad Charge Pump Kit

Eaton A-Pad Charge Pump Kit

This is a genuine Eaton A-Pad charge pump kit, part number 990356-022. The kit provides the necessary components to install or replace the charge pump on an Eaton Series 54 or similar heavy-duty hydrostatic pump. It includes the charge pump subassembly, mounting hardware, and gasket. Charge pumps are critical for supplying cooled, filtered oil to the main hydrostatic pump, preventing cavitation and ensuring longevity, making this kit essential for maintenance and service of concrete mixer hydraulic systems.

Key Features

• Genuine Eaton service kit
• Includes charge pump subassembly, 4 mounting bolts, 2 dowels, and a gasket
• For SAE A-Pad (2-bolt) mount charge pumps
• Features a charge pump with a 28cc displacement and clockwise rotation
• Relief valve pressure setting of 220 PSI

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits Eaton 54-series and similar heavy-duty hydrostatic pumps that utilize an SAE A-pad auxiliary mount for the charge pump. Commonly used in the hydraulic systems of rear discharge and front discharge concrete mixers from manufacturers such as McNeilus and Terex.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.