External Gear Pump – 5.5 GPM – 4000 PSI – 4000 RPM – G5.5-2AK-3

Part G5.5-2AK-3
PID 4451

$432.04

Hyvair 5.5 GPM gear pump — compact, durable hydraulic pump rated to 3000 PSI. Part G5.5-2AK-3 features 2-bolt 5/8" keyed shaft (5/32" key), female SAE ports (#12 inlet, #10 outlet) for easy system integration.
IH-00095
Weight9.25 lbs
Dimensions4.118 × 4.19 × 5.12 in

Description

The Hyvair Gear Pump 5.5 GPM (Part G5.5-2AK-3) is a compact, high-performance hydraulic pump designed for reliable power in demanding mobile and industrial applications. Built on Hyvair’s proven G Series SAE A platform, this 5.5 GPM gear pump delivers efficient flow in a small, easy-to-package footprint—ideal for equipment where space and weight are at a premium.

Rated up to 3000 PSI, the pump’s simple, rugged gear design ensures long service life, consistent performance, and low maintenance in continuous-duty environments. Precision-machined components minimize internal leakage for strong volumetric efficiency, helping your system run cooler and more efficiently.

The G5.5-2AK-3 comes with a 2-bolt SAE A mount and a 5/8″ keyed shaft (5/32″ key), allowing quick, straightforward coupling to common gas, diesel, or electric prime movers. Female SAE ports (#12 inlet, #10 outlet) simplify plumbing and integration with standard hydraulic hoses and fittings, reducing install time and potential leak points.

Ideal for log splitters, small lifts, ag implements, compact construction equipment, and custom power units, this Hyvair 5.5 GPM gear pump offers a balanced combination of flow, pressure capability, and durability. Choose the Hyvair G5.5-2AK-3 when you need a dependable, easy-to-mount hydraulic pump that keeps your system running smoothly under tough operating conditions.

Related categories: Pumps · Gear Pumps · SAE A 3.25″ 3-10GPM

Brand: Hyvair

In stock in Memphis, TN — ships fast. Call (901) 946-1500 for freight or a quote.

Specifications

Series
G Series
Maximum Pressure
4000 PSI
Maximum RPM
4000
GPM
5.5
Port Size In (SAE)
#12 1 1/16 - 12
Port Size Out (SAE)
#10 7/8 - 14
Mounting Style
SAE-A, 2 Bolt, 5/8” Dia. Keyed Shaft x 5/32” wide Sq. Key

Product details

Part no.G5.5-2AK-3
IH-00095
PID4451
Shipping details
Weight9.25 lbs
Dimensions (in)4.118L × 4.19W × 5.12H

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