Parker PGP620 PGM620 Series Hydraulic Gear Pump/Motor Replacement

Displacemnet	19.0 to 50.0 cm³/rev
Max. Pressure	Continuous up to 275 bar(4000 psi)
Max. Speed	Up to 3,300 RPM
Volumetric Efficiency	Up to 98%
Material	High-strength extruded aluminum
Interchangeability	100% Drop-in replacement for Parker
Mounting Options	SAE,ISO, European Standard
Shaft Types	Splined, Tapered, and Straight Keyed available
Configurations	Single, Tandem (Double), or Triple units
Applications	Excavators, Forklifts, and Industrial Power Units

Our PGP620 PGM620 series gear pumps and motors offer a high-efficiency, fully interchangeable alternative to the original Parker units, specifically engineered for demanding hydraulic environments. Built with a high-strength aluminum body and an advanced interlocking structure, these units support a wide displacement range from 19 cm³/rev to 50 cm³/rev and sustain continuous operating pressures up to 275 bar (4000 psi). By utilizing precision-ground forged steel gears and pressure-balanced plates, our pumps achieve superior volumetric efficiency while significantly reducing operational noise and vibration. Whether used in excavators, loaders, or industrial power units, this series ensures seamless integration with standard Parker mounting flanges and shaft ends, providing a cost-effective, factory-direct solution that maintains OEM-level durability and performance under peak loads.

PGP620 PGM620 Standard Displacement Single Unit:

Pump Displacement	Code	0190	0230	0260	0290	0330	0370	0410	0440	0500
	cc/rev	19	23	26	29	33	37	41	44	50
	in³/rev	1.16	1.4	1.59	1.77	2.01	2.26	2.5	2.68	3.05
Continuous Pressure	bar	275	275	275	275	275	250	220	210	210
Continuous Pressure	psi	3989	3989	3989	3989	3989	3626	3191	3046	3046
Intermittent Pressure	bar	300	300	300	300	300	275	245	230	210
Intermittent Pressure	psi	4351	4351	4351	4351	4351	3989	3553	3336	3046
Port Location “X”	mm	82.5	86.9	90.2	93.5	97.9	102.3	106.7	110	116.6
Port Location “X”	inch	3.25	3.42	3.55	3.68	3.85	4.03	4.2	4.33	4.59
Overall Length “Y”	mm	123.5	127.9	131.2	134.5	138.9	143.3	147.7	151	157.6
Overall Length “Y”	inch	4.86	5.04	5.17	5.3	5.47	5.64	5.81	5.94	6.2
*Weight	kg	12.1	12.2	12.3	12.6	12.7	12.9	13	13.1	13.3
*Weight	lb	26.7	26.9	27.1	27.8	28	28.4	28.7	28.9	29.3

PGP620 PGM620 Standard Displacement Tandem Unit:

Pump Displacement	code	0190	0230	0260	0290	0330	0370	0410	0440	0500
	cc/rev	19	23	26	29	33	37	41	44	50
	in³/rev	1.16	1.4	1.59	1.77	2.01	2.26	2.5	2.68	3.05
Front Port Location “X”	mm	82.5	86.9	90.2	93.5	97.9	102.3	106.7	110	116.6
Front Port Location “X”	inch	3.25	3.42	3.55	3.68	3.85	4.03	4.2	4.33	4.59
Front Overall Length “Y”	mm	123.5	127.9	131.2	134.5	138.9	143.3	147.7	151	157.6
Front Overall Length “Y”	inch	4.86	5.04	5.17	5.3	5.47	5.64	5.81	5.94	6.2
Rear Overall Length “Y”	mm	123.5	127.9	131.2	134.5	138.9	143.3	147.7	146	157.6
Rear Overall Length “Y”	inch	4.86	5.04	5.17	5.3	5.47	5.64	5.81	5.75	6.2
*Weight Front Section	kg	12.1	12.2	12.3	12.6	12.7	12.9	13	13.1	13.3
*Weight Front Section	lb	26.7	26.9	27.1	27.8	28	28.4	28.7	28.9	29.3
*Weight Rear Section	kg	12.1	12.2	12.3	12.6	12.7	12.9	13	11.5	13.3
*Weight Rear Section	lb	26.7	26.9	27.1	27.8	28	28.4	28.7	25.4	29.3

PGP620 Typical Outlet Flow and Input Power 120°F(50℃),ISO VG32 Fluid
Speed (rpm)	Units	Displacement/Maximum Allowable Continuous Pressure
	cc	19	23	26	29	33	37	41	44	50
	in³	1.16	1.4	1.59	1.77	2.01	2.26	2.5	2.75	3.05
	bar	275	275	275	275	275	250	220	210	210
	psi	3989	3989	3989	3989	3989	3626	3191	3046	3046
900	lpm	16.2	19.6	22.1	24.7	28.1	31.5	34.9	37.4	42.5
	gpm	4.3	5.2	5.8	6.5	7.4	8.3	9.2	9.9	11.2
	kw	8.4	10.2	11.5	12.9	14.6	14.9	14.5	14.9	16.9
	hp	11.3	13.7	15.5	17.2	19.6	20	19.5	20	22.7
1200	lpm	21.7	26.1	29.5	32.9	37.4	42	46.5	49.9	56.7
	gpm	5.7	6.9	7.8	8.7	9.9	11.1	12.3	13.2	15
	kw	11.2	13.6	15.4	17.2	19.5	19.9	19.4	19.9	22.6
	hp	15.1	18.2	20.6	23	26.2	26.7	26	26.6	30.3
1500	lpm	27.2	32.9	37.2	41.5	47.3	53	58.7	63	71.6
	gpm	7.2	8.7	9.8	11	12.5	14	15.5	16.7	18.9
	kw	14.2	17.2	19.4	21.7	24.7	25.1	24.5	25.1	28.5
	hp	19	23	26.1	29.1	33.1	33.7	32.9	33.7	38.3
1800	lpm	32.8	39.7	44.9	50.1	57	63.9	70.8	76	86.4
	gpm	8.7	10.5	11.9	13.2	15.1	16.9	18.7	20.1	22.8
	kw	17	20.6	23.3	26	29.6	30.2	29.4	30.1	34.2
	hp	22.8	27.7	31.3	34.9	39.7	40.4	39.4	40.4	45.9
2100	lpm	38.5	46.6	52.7	58.8	66.9	75	83.1	89.2	101.3
	gpm	10.2	12.3	13.9	15.5	17.7	19.8	21.9	23.6	26.8
	kw	20.1	24.3	27.5	30.7	34.9	35.6	34.7	35.5	40.4
	hp	26.9	32.6	36.9	41.1	46.8	47.7	46.5	47.7	54.2
2400	lpm	44.2	53.5	60.5	67.5	76.8	86.1	95.4	102.4	116.4
	gpm	11.7	14.1	16	17.8	20.3	22.8	25.2	27.1	30.7
	kw	23.2	28.1	31.8	35.4	40.3	41.1	40.1	41.1	46.7
	hp	31.1	37.7	42.6	47.5	54.1	55.1	53.8	55.1	62.6
2700	lpm	49.8	60.2	68.1	76	86.4	96.9	107.4	115.2	131
	gpm	13.1	15.9	18	20.1	22.8	25.6	28.4	30.4	34.6
	kw	26.4	32	36.2	40.3	45.9	46.8	45.6	46.7	53.1
	hp	35.4	42.9	48.5	54.1	61.5	62.7	61.2	62.7	71.2
3000	lpm	55.3	66.9	75.7	84.4	96	107.7	119.3	128	145.5
	gpm	14.6	17.7	20	22.3	25.4	28.4	31.5	33.8	38.4
	kw	29.7	35.9	40.6	45.3	51.6	52.6	51.3	52.5	59.7
	hp	39.8	48.2	54.5	60.8	69.1	70.5	68.7	70.4	80

Parker PGP620 hydraulic gear pumps & PGM620 gear motors feature heavy-duty cast-iron construction for construction, agriculture, and industrial machinery. With displacements from 19–50 cm³/rev and continuous pressure up to 275 bar (4000 psi), We offer OEM-compatible customization for reliable, high-efficiency performance in demanding mobile hydraulic systems.

Customization Item	Available Options	Description
Unit Type	PGP (Pump) / PGM (Motor)	Select hydraulic gear pump or gear motor
Displacement	19.0 – 50.0 cm³/rev (1.16 – 3.05 in³/rev)	Controls oil flow rate for heavy-duty equipment
Shaft Style	Keyed / Splined (SAE B 10T/11T/13T/15T; tapered)	Connection type to match engine/equipment drive
Rotation	Clockwise (CW) / Counterclockwise (CCW) / Birotational	Rotation direction for installation compatibility
Mounting	SAE B 2‑bolt / 4‑bolt; SAE C 4‑bolt	Standard heavy‑duty mounting patterns
Port Position & Type	Side / Rear ports	Inlet/outlet positions & thread types for system fit
Port Position & Type	SAE split flange / Straight thread O‑ring / Metric	Inlet/outlet positions & thread types for system fit
Seal Material	Standard NBR / High‑Temp FKM (Viton)	For normal or high‑temperature fluid operation
Configuration	Single / Tandem / Triple / Cross‑frame (common inlet)	Single or multi‑unit assembly on one shaft
Max Pressure	Continuous: 275 bar (4000 psi); Peak: 310 bar (4500 psi)	Heavy‑duty hydraulic system pressure rating
Integrated Valves	Relief / Anti‑cavitation / Cross‑port relief / Solenoid unloading / Proportional relief	Onboard valves for system protection & efficiency
Drain Port	With drain / Without drain	For internal pressure relief in high‑load applications

Send your displacement, shaft type, port location, rotation, and mounting specs for a fast quote. We supply high‑quality PGP620/PGM620 replacements with OEM fit, reliable performance, and short lead times.

At Fairy Deer, we understand that reliability is the heartbeat of your hydraulic system. Our PGP620/PGM620 series gear pumps are manufactured to rigorous standards to ensure they serve as a seamless, high-performance replacement for original Parker units.

1. 100% Interchangeability & Precision Fit

Each unit is engineered with precision-ground forged steel gears and high-duty aluminum bodies, ensuring 100% dimensional compatibility with Parker PGP620/PGM620 mounting flanges, shafts, and ports. This guarantees a “drop-in” replacement with zero modifications required.

2. Rigorous Multi-Stage Testing

Every pump and motor undergoes a mandatory Full-Load Performance Test before leaving our factory. Our testing protocols include:

Volumetric Efficiency Test: Ensuring optimal output at peak pressures up to 275 bar.
Static & Dynamic Leakage Test: Verifying seal integrity under high-temperature and high-pressure conditions.
Noise & Vibration Analysis: Guaranteeing smooth operation and extended service life.

3. Premium Material Sourcing

We use only industrial-grade materials, such as high-strength aluminum alloys and wear-resistant bushings, to match the durability of OEM components. Our interlocking body design prevents casing expansion, maintaining high efficiency even during long-term continuous operation.

4. Warranty & Technical Support

We stand behind our products with a 12-month comprehensive warranty. Our technical team provides expert guidance on installation, maintenance, and cross-referencing model numbers to ensure you get the exact part you need.

Hydraulic Gear Pump – FAQ

Are your PGP620 series gear pumps 100% interchangeable with Parker?

Yes. Our PGP620 and PGM620 series are engineered to be “drop-in” replacements. This means the mounting flanges, shaft extensions, and porting configurations are identical to the original Parker specifications, requiring zero modifications to your existing hydraulic system.

What is the displacement range and maximum pressure for this series?

Our PGP/PGM620 series covers a versatile displacement range from 16 cm³/rev to 50 cm³/rev. These units are designed for high-pressure durability, supporting continuous operating pressures up to 275 bar (4000 psi), making them ideal for heavy-duty construction and industrial applications.

How do you ensure the quality of these replacement gear pumps?

Every unit undergoes a 100% full-load performance test before shipment. We verify volumetric efficiency, mechanical noise, and seal integrity under peak pressure conditions. We use high-strength aluminum and forged steel gears to ensure our products match or exceed OEM durability standards.

Can I get a customized shaft or flange for my specific application?

Absolutely. As a direct manufacturer, we offer OEM and ODM services. Whether you need a specific spline shaft, tapered shaft, or specialized porting (SAE, BSP, or Metric), our technical team can customize the PGP620 series to meet your exact machinery requirements.

What is the lead time and warranty for bulk B2B orders?

Standard models are typically in stock and ready for immediate dispatch. For bulk orders, the lead time is generally 10-15 days. We provide a 12-month comprehensive warranty on all our hydraulic pumps and motors, ensuring a risk-free sourcing experience for our global partners.

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Fairy Deer as the manufacturer of construction machine spare parts (excavator, forklift, wheel loader,road roller), located in Guangzhou Huangpu international construction machine market (the biggest construction machine market in Asia).

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