Parker D22AA2A Hydraulic Gear Pump 4.1 Gpm Sae Aa Mount

Product Description

The PARKER D22AA2A is a hydraulic gear pump designed for mobile and industrial hydraulic systems requiring reliable, consistent flow at high working pressures. Rated at 4.1 GPM at 2,500 RPM and a maximum working pressure of 2,500 psi, this pump delivers 4.07 GPM at 1,800 RPM and 8.14 GPM at 3,600 RPM across a broad speed range. The aluminum housing keeps weight low at 3 pounds while maintaining structural integrity under continuous pressure. The 1/2 inch shaft diameter and SAE AA mount pattern make this a direct-fit replacement in standard SAE-mount configurations. Installation is performed by hydraulic technicians and qualified mechanics working on mobile equipment and industrial machinery.

The D22AA2A suits residential and commercial mobile equipment applications including skid steers, utility vehicles, log splitters, and light industrial machinery. The 7/8-14 UNF-2B SAE inlet port and matching SAE port sizing integrate cleanly into existing hydraulic circuits without adapters in properly configured systems. Operating temperature range spans from -40 degrees F to 185 degrees F, making this pump suitable for year-round outdoor equipment operation in cold-climate and high-ambient environments. The 0.522 cubic inch per revolution displacement provides predictable flow output relative to drive shaft speed.

Key Features

• 4.1 GPM rated flow at 2,500 RPM with 2,500 psi maximum working pressure
• SAE AA mount pattern for direct installation in standard SAE-mount hydraulic circuits
• 0.522 cubic inch per revolution displacement for consistent, calculable flow output
• Aluminum housing construction reduces installed weight to 3 pounds
• Wide operating temperature range: -40 degrees F to 185 degrees F
• 7/8-14 UNF-2B SAE inlet and port sizing for tool-free circuit integration where applicable

Compatibility

Designed as an OEM-style replacement for hydraulic systems using SAE AA mount gear pumps with 1/2 inch shaft diameter and 7/8-14 UNF-2B SAE port configurations.

Installation Notes

Installation should be performed by a qualified hydraulic technician or licensed mechanic. Before removal or installation, fully depressurize and bleed the hydraulic system and power down all associated drive equipment. Ensure the replacement pump shaft, mount pattern, and port sizes match the existing system before installing. Inspect all hydraulic fittings and lines for wear or contamination before returning the system to service.