Eaton Hydraulic Pump A-pad Gasket

Eaton Hydraulic Pump A-pad Gasket

This A-pad gasket is a critical hydraulic component used to seal the connection between the main hydrostatic pump and the auxiliary/pony charge pump in concrete mixer hydraulic systems. It prevents hydraulic fluid leakage and helps maintain proper charge pressure within the circuit. Designed as a direct OEM replacement, it is widely used on Eaton 21, 22, 46, and 54 series pumps found in McNeilus, Continental, Kimble, and Con-Tech mixers. Replacing a worn or damaged gasket during routine pump maintenance or rebuilds ensures optimal hydraulic performance and prevents costly fluid loss.

Key Features

• Seals the A-pad mounting interface between main and auxiliary hydraulic pumps
• Prevents hydraulic fluid leaks and maintains charge circuit pressure
• Features a 3-5/16" inner diameter with two 1/2" mounting holes
• Compatible with Eaton 21, 22, 46, and 54 series hydrostatic pumps
• Direct replacement for McNeilus, Continental, Kimble, and Con-Tech mixers

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits McNeilus, Continental, Kimble, and Con-Tech rear discharge mixers equipped with Eaton 5421, 5423, 46, 21, and 22 series hydrostatic pumps. Also compatible with Parker to Eaton pump mating applications.

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.